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• Gas and bloating can result from hard-to-digest soy formula.• Inability to digest milk due to an irritated bowel leads to frequent changes of formula and further irritation.• Colic can develop due to antibiotics.• Anesthetics used in surgery to place tubes in the ears add another toxin.## **FIBROMYALGIA DIAGNOSTIC CRITERIA**
### **Major Criteria**
• Generalized aches or stiffness of at least three anatomical sites for at least three months
• Six or more typical, reproducible tender points, called trigger points, in the muscles
• Exclusion of other disorders that can cause similar symptoms
### **Minor Criteria**
• Generalized fatigue
• Chronic headaches
• Sleep disturbances
• Neurological and psychological complaints
• Joint swelling
• Numbness or tingling sensation
• Irritable bowel syndrome
• Variation of symptoms in relation to activity, stress, and weather changes
Below is a chronology of ailments and the kinds of medical treatments any one of us may receive over the course of a lifetime. Each treatment can trigger the next event and further drug intervention. However, in my experience, a person with fibromyalgia can diminish his or her symptoms by at least 50 percent by taking the right amount and the right kind of magnesium. See Chapter 18 for more information on my magnesium recommendations. I've found that the other 50 percent of symptoms are related to yeast overgrowth and require a yeast detox protocol. ### **Health Chronology for CFS and Fibromyalgia Sufferers**
• Diaper rash, caused by _Candida albicans_ (yeast), is mistakenly treated with cortisone creams, which encourage further growth of the yeast. • Childhood ear infections can begin at birth as yeast infections picked up from the mother during delivery. Most ear infections are treated with antibiotics. • Ear infections may become chronic and require multiple courses of antibiotics, leading to diarrhea and intestinal yeast infections. • Anesthetics used in surgery to place tubes in the ears add another toxin. • Colic can develop due to antibiotics. • Inability to digest milk due to an irritated bowel leads to frequent changes of formula and further irritation. • Gas and bloating can result from hard-to-digest soy formula.• Allergies to foods, especially yeast, wheat, and dairy, can arise from poor digestion.• Asthma, which may be environmental, is treated with medications including corticosteroid inhalers.• Multiple colds and flus are mistreated with many courses of antibiotics.• Annual flu vaccines contain mercury preservative. |
Manipulation of the auricle elicits pain.### Clinical Findings
Examination reveals erythema and edema of the ear canal skin, often with a purulent exudate (Figure 8–1).Usually caused by _Pseudomonas aeruginosa_ , osteomyelitis begins in the floor of the ear canal and may extend into the middle fossa floor, the clivus, and even the contralateral skull base.Foreign Bodies
Foreign bodies in the ear canal are more frequent in children than in adults. Firm materials may be removed with a loop or a hook, taking care not to displace the object medially toward the tympanic membrane; microscopic guidance is helpful. Aqueous irrigation should not be performed for organic foreign bodies (eg, beans, insects), because water may cause them to swell. Living insects are best immobilized before removal by filling the ear canal with lidocaine. Friedman EM. Videos in clinical medicine. Removal of foreign bodies from the ear and nose. N Engl J Med. 2016 Feb 18;374(7):e7. [PMID: 26886547]
Shunyu NB et al. Ear, nose and throat foreign bodies removed under general anaesthesia: a retrospective study. J Clin Diagn Res. 2017 Feb;11(2):MC01–4. [PMID: 28384894]
##### 3. External Otitis
ESSENTIALS OF DIAGNOSIS
Painful erythema and edema of the ear canal skin. Purulent exudate. In diabetic or immunocompromised patients, osteomyelitis of the skull base ("malignant external otitis") may occur. ### General Considerations
External otitis presents with otalgia, frequently accompanied by pruritus and purulent discharge. There is often a history of recent water exposure (ie, swimmer's ear) or mechanical trauma (eg, scratching, cotton applicators). External otitis is usually caused by gram-negative rods (eg, _Pseudomonas, Proteus_ ) or fungi (eg, _Aspergillus_ ), which grow in the presence of excessive moisture. In diabetic or immunocompromised patients, persistent external otitis may evolve into osteomyelitis of the skull base (so-called, malignant external otitis). Usually caused by _Pseudomonas aeruginosa_ , osteomyelitis begins in the floor of the ear canal and may extend into the middle fossa floor, the clivus, and even the contralateral skull base. ### Clinical Findings
Examination reveals erythema and edema of the ear canal skin, often with a purulent exudate (Figure 8–1). Manipulation of the auricle elicits pain.However, in contrast to acute otitis media, it moves normally with pneumatic otoscopy.When the canal skin is very edematous, it may be impossible to visualize the tympanic membrane.Malignant external otitis typically presents with persistent foul aural discharge, granulations in the ear canal, deep otalgia, and in advanced cases, progressive palsies of cranial nerves VI, VII, IX, X, XI, or XII. |
Lymph vessels in the perineum and lower part of the labia majora drain to the rectal lymphatic plexus.77.3B).Lymph vessels from the clitoris drain directly to the deep inguinal nodes, and direct clitoral lymphatics may pass to the internal iliac nodes (Fig.The last of the deep inguinal nodes lies under the inguinal ligament within the femoral canal and is often called Cloquet's node.This blood supply to the labial fat must be carefully preserved during vaginal surgery, e.g. in creating a Martius fat pad flap to repair a vesicovaginal fistula where blood supply has already been compromised by radiation or fibrosis (Delancey 2011). ##### Veins
Venous drainage of the vulval skin is via external pudendal veins to the long saphenous vein. Venous drainage of the clitoris is via deep dorsal veins to the internal pudendal vein, and via superficial dorsal veins to the external pudendal and long saphenous veins. ##### Lymphatic drainage
A meshwork of connecting vessels from the skin of the labia, clitoris and perineum join to form three or four collecting trunks that drain to superficial inguinal nodes lying on the cribriform fascia covering the femoral artery and vein; these nodes drain through the cribriform fascia to the deep inguinal nodes lying medial to the femoral vein (Corton 2012). The deep inguinal nodes drain via the femoral canal to the pelvic nodes (Table 77.1 ). The last of the deep inguinal nodes lies under the inguinal ligament within the femoral canal and is often called Cloquet's node. Lymph vessels from the clitoris drain directly to the deep inguinal nodes, and direct clitoral lymphatics may pass to the internal iliac nodes (Fig. 77.3B). Lymph vessels in the perineum and lower part of the labia majora drain to the rectal lymphatic plexus.Shoja et al 2013).The sensory innervation of the anterior and posterior parts of the labium majus differs. |
To increase your absorption of the calcium they contain, sprinkle leafy green vegetables with a little ordinary vinegar.Good non-animal calcium providers include almonds, seeds, tofu, soya, seaweed, figs, dates, dried apricots, Brazil nuts, purple broccoli, watercress, leeks, parsnips, lentils, beans and green leafy vegetables such as kale.* Chillis contain capsaicin, which is thought to be anti-inflammatory and to stimulate the release of endorphins – brain chemicals that have a pain-relieving effect. Herbal helper
Basil contains a volatile oil called eugenol, which is believed to have anti-inflammatory properties similar to those found in aspirin – hence it may be beneficial to arthritis sufferers. Try adding torn basil leaves to pastas and salads. 11. Eat calcium-rich foods
People with RA, OA and other forms of arthritis including ankylosing spondylitis, systemic lupus erythematosus and polyarticular juvenile idiopathic arthritis have an increased risk of developing osteoporosis (brittle bones). This can be due to the disease itself or the effects it has on mobility - bones need regular weight-bearing exercise to remain strong. Also, the steroids often used to treat arthritis can lead to osteoporosis when taken over a long period of time. Eating calcium-rich foods helps to keep your bones strong and healthy and reduce the risk of developing osteoporosis. Women are more likely to suffer from osteoporosis after the menopause, when they lose the bone-protecting effects of oestrogen. Nutritionists recommend a daily intake of 1,000 mg, increasing to 1,500 mg for people aged over 60. The richest sources of calcium are dairy foods - especially low-fat milk, hard cheese and yogurt. One pint of semi-skimmed milk, one 125 g pot of low-fat yogurt and 30 g of low-fat hard cheese would supply around 1,100 mg of calcium. Tinned sardines are also a good source, if you eat the bones. Good non-animal calcium providers include almonds, seeds, tofu, soya, seaweed, figs, dates, dried apricots, Brazil nuts, purple broccoli, watercress, leeks, parsnips, lentils, beans and green leafy vegetables such as kale. To increase your absorption of the calcium they contain, sprinkle leafy green vegetables with a little ordinary vinegar.'Good' bacteria – probiotics such as lactobacillus – also seem to improve calcium absorption.Various probiotic foods are available, such as natural live bio-yogurt, which is also rich in calcium, and drinks like Yakult and Actimel.12. |
The transcatheter MitraClip device (Abbot Vascular) has received regulatory approval in both Europe and the United States.The edge-to-edge method has generated the greatest clinical experience, mirroring the concept of the surgical Alfieri method for repair of MR by stitching the two mitral leaflets to create a double mitral orifice.Because of the higher operative mortality, older patients (>75 years) should, in general, undergo surgery only if they are symptomatic. ###### Symptomatic Patients. Patients with severe MR and moderate or severe symptoms (NYHA class II, III, and IV) should generally be considered for surgery. One exception is that of patients in whom the LV ejection fraction is less than 30% and echocardiography suggests that mitral valve replacement will be required and that the subvalvular apparatus cannot be preserved. Because of the high risk of operation and the poor long-term results in these patients, medical therapy usually is advised, but the outcome is poor in any event. However, when mitral valve repair appears possible, even patients with serious LV dysfunction may be considered for operation (see Fig. 63-37). Transcatheter Mitral Valve Repair. There is growing interest in the development of percutaneous approaches to mitral valve repair using either the edge-to-edge technique or the coronary sinus approach for percutaneous mitral annuloplasty (see Chapter 56). The edge-to-edge method has generated the greatest clinical experience, mirroring the concept of the surgical Alfieri method for repair of MR by stitching the two mitral leaflets to create a double mitral orifice. The transcatheter MitraClip device (Abbot Vascular) has received regulatory approval in both Europe and the United States.The reduction in MR is associated with favorable LV remodeling and amelioration of symptoms, both immediately and up to 4 years, with clinical results equivalent to those achieved surgically.- Longer-term outcomes are not yet available. |
Humans possess only an imperfect hemostatic control mechanism; only the liver is capable of adjusting its cholesterol production.Further complicating matters, most animals are able to regulate their production of cholesterol in response to dietary levels, producing more or less as needed.Only a small portion of all the body's cholesterol is ingested in the diet; most of it is manufactured.Early research on dietary cholesterol in the 1940s showed that a rise in foods that had naturally high levels of cholesterol (notably egg yolks and butterfat) caused at least a temporary rise in cholesterol in the blood. In the early 1950s, researchers observed that fat in the diet could also raise serum cholesterol levels, lending credence to Ancel Keys's _Seven Countries Study_ and his low-fat recommendations. Noboru Kimura's early study into the low rate of heart disease among Japanese men further confirmed the idea. After surveying medical records for 10,000 men and autopsying over 1,000 hearts, Kimura concluded that the culprit was fat. Japanese men suffered heart disease at only one-tenth the rate of American men, and they got about ten percent of their daily calories from fat. Americans, meanwhile, consumed 40 percent of their calories through fat. Comparative studies of diets and heart disease in Bantu, colored, and white men in Cape Town, South Africa, and of Italian men living in (low-fat) Naples and (high-fat) Bologna seemed to offer incontrovertible proof that fat killed. Cholesterol, however, is not fat. A modified steroid (technically a _sterol_ ) produced by all animals, the molecule is an essential component of cell membranes and of particular importance in building neural tissue. Only a small portion of all the body's cholesterol is ingested in the diet; most of it is manufactured. Further complicating matters, most animals are able to regulate their production of cholesterol in response to dietary levels, producing more or less as needed. Humans possess only an imperfect hemostatic control mechanism; only the liver is capable of adjusting its cholesterol production.After death, autopsies of heart attack sufferers exposed thick arterial plaques of cholesterol.Fat people do not necessarily have higher cholesterol, however.One study published in 1959 showed little correlation between obesity and cholesterol, suggesting that while fat in a diet raised cholesterol levels, fat in the body did not. |
• Assess the venipuncture site for bleeding.#### After
• Apply pressure or a pressure dressing to the venipuncture site.#### During
• Collect a venous blood sample in a red-top tube.### Procedure and Patient Care
#### Before
Explain the purpose of the test to the patient.They provide a more accurate testing method and antibody quantities can be determined.A change in the HAI titer (measures IgG and IgM) from the acute to the chronic phase in a patient with a rash is the most useful method of demonstrating that the rash was related to a rubella infection. With a rubella rash, diagnosis of rubella is confirmed by obtaining an acute sample (approximately 3 days after the onset of the rash) and a convalescent sample (approximately 2 to 3 weeks later). A fourfold increase in the acute to the convalescent titer indicates that the rash was caused by an active rubella infection. Alternatively, in a pregnant woman with a rash suspected to be from rubella, an IgM antibody titer can be measured. If the titer is positive, recent infection has occurred. IgM titers appear 1 to 2 days after onset of the rash and disappear 5 to 6 weeks after infection. Antirubella antibody testing is also used to diagnose rubella in infants (congenital rubella). Rubella is suspected in low-birth-weight (LBW) infants. Although IgG antibodies can be passed from mother to fetus, IgM antirubella antibodies cannot pass through the placenta. If an infant has IgM antibodies, acute congenital or newborn rubella is suspected. Antibody testing is often used in children with congenital abnormalities that may have resulted from congenital rubella infection. This test is also recommended for anyone with a rash that may be related to rubella. The HAI method tests for IgG and IgM. LA detects IgG only and is often used as a simple screen for immunity. Enzyme-linked immunosorbent assay (ELISA) methods for detecting IgG and IgM are now the standard for rubella testing. They provide a more accurate testing method and antibody quantities can be determined. ### Procedure and Patient Care
#### Before
Explain the purpose of the test to the patient. #### During
• Collect a venous blood sample in a red-top tube. #### After
• Apply pressure or a pressure dressing to the venipuncture site. • Assess the venipuncture site for bleeding.### Test Results and Clinical Significance
Active rubella infection
Previous rubella infection leading to immunity
## Rubeola Antibody
### Normal Findings
Negative
### Indications
This test is used to diagnose rubeola infection (measles).It is more commonly used, today, to document immunity to infection by prior vaccination or clinical disease. |
End-stage kidney failure occurs in half of people within 4 years.| The prognosis is poor.It may also cause nephrotic syndrome.PRIMARY GLOMERULAR DISORDERS THAT CAN CAUSE GLOMERULONEPHRITIS
DISORDER | DESCRIPTION | PROGNOSIS
---|---|---
Fibrillary glomerulonephritis | In this rare disease, abnormal proteins are deposited around the glomerulus.In these cases, the kidneys are shrunken and scarred, and the chance of obtaining specific information about the cause is small. Doctors suspect that the kidneys are shrunken and scarred if kidney function has been poor for a long time and the kidneys appear abnormally small on an imaging test. Prognosis
Acute poststreptococcal glomerulonephritis resolves completely in most cases, especially in children. About 0.1% of children and 25% of adults develop chronic kidney failure. The prognosis for people with rapidly progressive glomerulonephritis depends on the severity of glomerular scarring and whether the underlying disease, such as infection, can be cured. In about 75% of the people who are treated early (within weeks to a few months), kidney function is preserved and dialysis is not needed. However, because the early symptoms can be subtle and vague, many people who have rapidly progressive glomerulonephritis are not aware of the underlying disease and do not seek medical care until kidney failure develops. If treatment occurs late, the person is more likely to develop chronic kidney failure. The prognosis also depends on the cause, the person's age, and any other diseases the person might have. When the cause is unknown or the person is older, the prognosis is worse. In some children and adults who do not recover completely from acute glomerulonephritis, other types of kidney disorders develop, such as asymptomatic proteinuria and hematuria syndrome or nephrotic syndrome. Other people with acute glomerulonephritis, especially older adults, often develop chronic glomerulonephritis. PRIMARY GLOMERULAR DISORDERS THAT CAN CAUSE GLOMERULONEPHRITIS
DISORDER | DESCRIPTION | PROGNOSIS
---|---|---
Fibrillary glomerulonephritis | In this rare disease, abnormal proteins are deposited around the glomerulus. It may also cause nephrotic syndrome. | The prognosis is poor. End-stage kidney failure occurs in half of people within 4 years.Primary rapidly progressive glomerulonephritis | This group of disorders causes microscopic damage to the glomeruli and progress rapidly.Sometimes they are caused by an infection or other treatable disorder.| The prognosis is poor.At least 80% of people develop end-stage kidney failure within 6 months without treatment. |
○ **Cryoballoon ablation**
▪ Ablation for 3–4 minutes should be delivered after verification of optimal CB-PV occlusion
▪ Occlusion usually assessed through contrast venography; however, alternatives include intracardiac echocardiography (ICE), and analysis of the PV pressure.• A sudden increase in impedance >20–30 Ω suggests the catheter has slipped into the PV.In both panels, a ventricular far-field signal (V) simultaneous to the QRS is observed on the circular mapping catheter. ○Pacing the electrical ostium
▪ Pacing directly within the vein will draw the PVP towards the pacing spike. ▪ Withdrawal of the pacing catheter towards the atrium and across the electrical ostium results in either:
• Reversal of the PVP-LA activation sequence as the catheter crosses into the LA. • Widened separation of the summated LA-PVP EGM as the catheter crosses into the LA. With a circular mapping catheter (PV) positioned inside the PV ositia, pacing is performed from a mapping catheter positioned inside the PV. Initially there is local PV capture followed by conduction to the LA (first two beats). As the catheter is withdrawn into the LA across the electrical ostium, the activation sequence reverses (from PVP – LA to LA – PVP). ## AF Ablation — Pulmonary Vein Isolation
○ **Irrigated RF**
▪ **Power** (maximum): 20–25 Watts (posterior wall), 30–35 Watts (anterior wall)
• 15–30 Watts (coronary sinus), 35 Watts (LAA-LPV anterior ridge), 35–40 Watts (mitral annulus)
▪ **Temperature** (maximum): 43°C
▪ **Irrigation** : 8–30 cc/min (during ablation; depending on the catheter), 2 cc/min (during mapping)
▪ **Monitoring during RF application**
• Should see abolition of local EGMs with a decrease in local impedance (~10 Ω). • A sudden increase in impedance >20–30 Ω suggests the catheter has slipped into the PV. ○ **Cryoballoon ablation**
▪ Ablation for 3–4 minutes should be delivered after verification of optimal CB-PV occlusion
▪ Occlusion usually assessed through contrast venography; however, alternatives include intracardiac echocardiography (ICE), and analysis of the PV pressure.▪ During ablation, the PVP should delay and disappear.• If PVP decreases in amplitude, it suggests the ablation is occurring too deep in the vein and the myocardial sleeve is being directly injured.• With "point-by-point" RF ablation the site of early activation progressively shifts until isolation is achieved.• With cryoballoon ablation, circumferential isolation occurs simultaneously. |
* Natural medicines tend to work synergistically.* Herbs and other natural medicines tend to work slowly.These are:
* Natural medicines are not as powerful as pharmaceutical drugs.However, there are a number of guiding therapeutic principles that experienced naturopathic clinicians generally follow.The standard dosage is one capsule, two times daily, not to be taken with food or before meals. **Monolaurin** : Monolaurin is a medium chain saturated fatty-acid compound (from monoglycerides of lauric acid) naturally occurring in mother's milk and commercially prepared from coconut oil. It is effective against lipid-coated viruses, including HIV, CMV, HSV-1, and influenza virus; it is also active against a wide range of opportunistic fungal and bacterial infections. Lauric acid has been used as a food preservative since 1964, though only recently has it been studied for its use as an antiviral medication in humans. Lauricidin, available from Ecological Formulas, contains 300 mg of monolaurin and is taken in dosages ranging from 1,800–3,600 mg daily. It is considered entirely safe for long term consumption. **RC-183** : A new class of antiviral compounds called RC-183 discovered by researchers at the University of Wisconsin in 1999 has shown effectiveness against influenza A virus, chickenpox, and herpes (Piraino 1999). The active ubiquitin-containing component, RC-183, is found in the gypsy mushroom _(Rozites caperata)_ and blocks viral replication. It is being tested by pharmaceutical companies for the treatment of viral infections and is not available to the consumer. However, you may look for other antiviral mushroom products from Fungi Perfecti. ## How to Use Natural Antivirals
Since prescribing natural medicines is matched to a composite of the individual patient's symptoms, their immune strengths and weaknesses, as well as the pathological condition, there is no specific protocol that I can outline to make this section easier for you to understand. However, there are a number of guiding therapeutic principles that experienced naturopathic clinicians generally follow. These are:
* Natural medicines are not as powerful as pharmaceutical drugs. * Herbs and other natural medicines tend to work slowly. * Natural medicines tend to work synergistically.Natural medicines, including antiviral and antibiotic alternatives, are not as powerful as pharmaceutical drugs.That is not to say that they are ineffective, which they certainly are not, because for chronic infections they may be our first choice for therapy.However, they tend to work more slowly and results come gradually. |
9.Is there any history of autoimmune disease?8.Has there been any history of radiation exposure?•Over-/underactive
•Weight loss/gain, appetite
•Intolerance to heat/cold
•Mood instability, irritability
•Bowels: Diarrhoea/constipation
•Palpitations
7.Is there any family history of thyroid disease or malignancy?6.Are there any other symptoms of thyroid disease?•Nodular
•Multinodular goitre (especially iodine-deficient areas)
•Adenoma
•Carcinoma
•Diffuse
•' Simple'
•Graves' disease
•Hashimoto' s thyroiditis
•De Quervain' s thyroiditis
•Thyroid lymphoma
3.What signs of thyroid disease are specific to Graves' disease? •Graves' opthalmopathy – See above
•Thyroid acropachy
•Pretibial myxedema
4.What are the ' hyperthyroid emergencies' ? •Thyroid storm
•Exophthalmos causing fixed gaze, diplopia or decreased acuity or loss of colour vision (may lead to optic nerve compression)
•Cardiac failure (high output)
PATIENT WELFARE AND CONCERNS
•What treatment options are available? •Is my condition curable? •Is my condition life threatening? CANDIDATE EXPECTATIONS
•Recognise early that the patient has thyroid disease. •Assess the patient' s thyroid status (hyper-/hypo-/euthyroid). •Recognise signs specific to Graves' disease. •Be able to discuss treatment options with the patient and address their concerns. NECK LUMP
This patient presents complaining of a neck lump. Please ask any relevant questions and proceed as you feel appropriate. FOCUSED HISTORY
1.Ask the patient what their most concerning problem is. 2.Where in the neck is the lump? (Thyroid: Midline, and just above the clavicle; other lumps may be nodes; make sure you can describe the surface anatomy.) 3.How long has it been there? (Rapidly progressing lumps can be lymphoma or anaplastic thyroid carcinoma.) 4.Is the lump painful? 5.Does the patient suffer from dysphagia or dysphonia (hoarseness)? 6.Are there any other symptoms of thyroid disease? •Over-/underactive
•Weight loss/gain, appetite
•Intolerance to heat/cold
•Mood instability, irritability
•Bowels: Diarrhoea/constipation
•Palpitations
7.Is there any family history of thyroid disease or malignancy? 8.Has there been any history of radiation exposure? 9.Is there any history of autoimmune disease?•Papillary: Most common
•Follicular
•Medullary: Arise from parafollicular calcitonin-secreting C-cells
•Anaplastic: Most aggressive
•Lymphoma
•Metastases from other primaries (kidney most common)
2.What investigations are used to diagnose the cause of a thyroid mass? |
Bound by the posterior ligament of the carpus, these swollen structures assume the shape of an hour-glass (Figure 10.3.).### 10.4.4 Swelling
Visible swelling of the back of the wrist is usually due to tenosynovitis of the extensors.B. Diffuse muscle wasting in chronic inflammatory polyarthritis.A. Thenar eminence wasting is typical of advanced carpal tunnel syndrome.Muscle wasting in the hands.In patients with connective tissue diseases (especially lupus and systemic sclerosis) the pads of the fingers may be affected by calcinosis, ulceration and focal necrosis, making their surface irregular and atrophic (Figure 10.8D.). Dark point-like lesions at the edge of the nails may correspond to micro-infarctions indicating small vessel vasculitis, which is relatively common in these patients. Be sure to look at the nails. Mycotic infections are common, but the presence of coarse nail dystrophy or pitting (Figure 10.9.) may be the only manifestation of psoriasis.1
Figure 10.9. Psoriasis may present with typical patches in the hands (A.) or palmar keratosis (B.) Nail dystrophy and pitting (C.) are more common when the distal interphalangeal joints are involved. Long-lasting corticosteroid therapy can cause skin atrophy, making it friable and prone to bruising. This is often prominent on the dorsal aspect of the hands. ### 10.4.3 Look for signs of muscle atrophy
When carpal tunnel syndrome is chronic and severe it leads to atrophy of the muscles in the thenar eminence. Chronic lesions of the ulnar nerve lead to atrophy of the hypothenar eminence. Chronic arthritis of the wrist and hands often results in generalized atrophy of the intrinsic muscles of the hands, forming depressions between the tendons of the extensors (Figure 10.10.). Figure 10.10. Muscle wasting in the hands. A. Thenar eminence wasting is typical of advanced carpal tunnel syndrome. B. Diffuse muscle wasting in chronic inflammatory polyarthritis. ### 10.4.4 Swelling
Visible swelling of the back of the wrist is usually due to tenosynovitis of the extensors. Bound by the posterior ligament of the carpus, these swollen structures assume the shape of an hour-glass (Figure 10.3.).However, swelling of these joints should always be confirmed by palpation.The same is the case for the fusiform swelling around proximal interphalangeal joints - they are strongly suggestive of arthritis but it is palpation that will confirm the suspicion (Figure 10.11.).Figure 10.11. |
If you miss a scheduled dosage of your medication, don't take an extra dose.Newer medications including Januvia, Onglyza, Tradjenta, Nesina, Galvus, Invokana and Forxiga can be taken before or after your meal.As you lose weight, your health care team will likely also have to adjust your medications in order to maximize their benefit without causing problems with low blood glucose levels. **Diabetes Pills and Injectables**
** **
Adapted from Joslin Diabetes Center education materials. Copyright © 2012 by Joslin Diabetes Center (www.joslin.org). All rights reserved. ## Know Your Medications
What should you know about your medications? Minimally, you should know the following:
* Name (brand name and generic name, if available) and type of medication. * How it works and when to take it. * What to do if you miss a dose. * What to watch for (potential side effects). You really need to know the names of your medications and not just be able to identify different ones as "the green pill" or "the blue pill." If you are taking many medications (for diabetes and other health conditions) or have trouble remembering information about them, write the information down and keep it in your wallet. Remember to update your list of medications whenever you make a change. When it comes to your medications, you should additionally know their brand names and their generic names (in case one is available at a lower price) and the correct dosage, as well as when to take your medication in relation to food intake to ensure that it's working most effectively. For example, metformin (brand name Glucophage) and Actos need to be taken with a meal. To work most effectively, sulfonylureas, such as glyburide (sold as multiple brand names), Glucotrol (generic glipizide) and Amaryl (generic glimepiride), should be taken before a meal, while carbohydrate blockers like Precose (acarbose) or Glyset (miglitol) are taken along with your first bite. Newer medications including Januvia, Onglyza, Tradjenta, Nesina, Galvus, Invokana and Forxiga can be taken before or after your meal. If you miss a scheduled dosage of your medication, don't take an extra dose.If you miss a dose of insulin, however, you should check with your health care provider about whether you need to try to replace any of the dosage or take a different type of insulin to cover the loss over the short run.## WHAT IS A "WEIGHT-FRIENDLY" MEDICATION?Tight blood glucose control often comes at a price: increased weight gain and more frequent hypoglycemia. |
Similarly, initial assessment and management of potential biomechanical factors influencing bone loading can be explored, including static posture and alignment, muscle strength and endurance, joint range, and dynamic mechanics.A detailed activity history is important, including review of usual and recent changes in activity type, frequency, duration, and intensity.If a pain‐free normal gait cannot be achieved, partial or nonweight bearing using assistive gait devices or a period in a walking boot may be considered. However, progression to unassisted pain‐free gait should be sought as soon as possible. Once the individual is completely pain free for 5 consecutive days during usual daily activities, a graduated loading program consisting of progressive, appropriate loading can be commenced [2]. Appropriate loading can be defined as loading that does not provoke BSI symptoms either during or after completion of an activity. Provocation of symptoms indicates excessive loading for the stage of healing and the need for activity titration and slower activity progression. During the early stage of BSI healing, techniques aimed at accelerating tissue‐level healing may be considered, such as the introduction of low‐intensity pulsed ultrasound or use of PTH or antisclerostin antibody therapy. Such approaches have promise in stimulating osteogenesis, but considering low‐risk BSIs usually readily heal, clinical utility may be best limited to the management of high‐risk, delayed‐ or nonunited BSIs. Physical conditioning can be maintained during early management via activities such as cycling, swimming, deep water running, and antigravity treadmill training. Also, early consideration should be given to the identification of potential subject‐specific causative risk factors. A detailed activity history is important, including review of usual and recent changes in activity type, frequency, duration, and intensity. Similarly, initial assessment and management of potential biomechanical factors influencing bone loading can be explored, including static posture and alignment, muscle strength and endurance, joint range, and dynamic mechanics.Bone health can be assessed, and a detailed menstrual history taken in females, remembering that diagnosis of a BSI may be the first time issues associated with the female athlete triad are identified. |
Colicky crying may be louder, more turbulent, variable in pitch, and appear more like screaming.• The crying is typically different from normal crying.• The crying is generally spontaneous, without preceding events triggering the episodes.• The colicky episodes may have a clear beginning and end.ETIOLOGY AND PATHOPHYSIOLOGY
The cause is unknown. Factors that may play a role include the following:
• Infant gastroesophageal reflux disease
• Allergy to cow's milk, soy milk, or breast milk protein
• Fruit juice intolerance
• Swallowing air during the process of crying, feeding, or sucking
• Overfeeding or feeding too quickly; underfeeding also has been proposed. • Inadequate burping after feeding
• Family tension
• Parental anxiety, depression, and/or fatigue
• Parent–infant interaction mismatch
• Baby's inability to console him- or herself when dealing with stimuli
• Increased gut hormone motilin, causing hyperperistalsis
• Functional lactose overload (i.e., breast milk that has a lower lipid content can have faster transit time in the intestine, leading to more lactose fermentation in the gut and hence gas and distension) (1)[C]
• Tobacco smoke exposure
RISK FACTORS
• Physiologic predisposition in infant but no definitive risk factors have been established. However, emerging data suggest maternal smoking or exposure to nicotine replacement therapy during pregnancy is associated with higher incidence of infantile colic (2)[B]. • Infants with a maternal history of migraine headaches are twice as likely to have colic (3)[B]. GENERAL PREVENTION
Colic is generally not preventable. DIAGNOSIS
HISTORY
• Evaluation for Wessel criteria: crying lasts for >3 hr/day, >3 days/week, and persists >3 weeks. • The colicky episodes may have a clear beginning and end. • The crying is generally spontaneous, without preceding events triggering the episodes. • The crying is typically different from normal crying. Colicky crying may be louder, more turbulent, variable in pitch, and appear more like screaming.• The infant acts normally when not colicky.• Assess the support system of caregivers and families, including coping skills.PHYSICAL EXAM
• A comprehensive physical exam is normal.• Because excessive crying may be a risk factor for shaken baby syndrome or other forms of child abuse (4)[B], be sure to examine the child carefully for signs of shaken baby syndrome or other types of child abuse. |
However, hepatotoxicity associated with nevirapine use can occur in both men and women, and at any time during treatment.Women with CD4+ cell counts greater than 250/mm3, including pregnant women receiving nevirapine in combination with other antiretrovirals for treatment of HIV-1 infection, are at greatest risk.** _Angiotensin-converting enzyme inhibitors, nitrates:_ increased hypotension
_Bumetanide, enalaprilat, ethacrynate sodium, furosemide, heparin, hydralazine, insulin:_ physical and chemical incompatibility with nesiritide
**Drug-diagnostic tests. ** _Hematocrit, hemoglobin:_ decreased values
#### **Patient monitoring**
• Monitor vital signs and pulmonary artery wedge pressure continuously during and for several hours after infusion. • Assess cardiovascular status closely. #### **Patient teaching**
• Tell patient he'll be monitored closely during and for several hours after infusion. • Inform patient that drug may cause serious adverse effects. Reassure him that he'll receive appropriate interventions to relieve symptoms. • Instruct patient to report chest pain, dizziness, palpitations, and other uncomfortable symptoms. • As appropriate, review all other significant and life-threatening adverse reactions and interactions, especially those related to the drugs and tests mentioned above. ###
**nevirapine**
Viramune, Viramune XR
* * *
**_Pharmacologic class:_** Nonnucleoside reverse transcriptase inhibitor
**_Therapeutic class:_** Antiretroviral
**_Pregnancy risk category C_**
### **FDA BOXED WARNING**
Drug has caused severe, life-threatening, and in some cases fatal hepatotoxicity, particularly in first 18 weeks. In some cases, patients had nonspecific, prodromal signs or symptoms of hepatitis and progressed to hepatic failure. These events are commonly associated with rash. Women and patients with higher CD4+ cell counts at initiation of therapy are at increased risk. Women with CD4+ cell counts greater than 250/mm3, including pregnant women receiving nevirapine in combination with other antiretrovirals for treatment of HIV-1 infection, are at greatest risk. However, hepatotoxicity associated with nevirapine use can occur in both men and women, and at any time during treatment.Use of nevirapine for occupational and nonoccupational PEP is contraindicated.Patients must discontinue drug and seek immediate medical help if they develop hepatitis signs or symptoms or have increased transaminase levels along with rash or other systemic symptoms. |
If you decide to try low-level doses, take ten to fifteen drops of the tincture daily, or two capsules every morning.(Low-level doses are often recommended for people with cancer, lupus, chronic fatigue syndrome, and HIV/AIDS.)Because the herbs in this remedy are stronger than those used in the "Common Cold Effective Tablets" (described above), restrict your use to the first three days of a cold or flu. Take four to six pills three or four times daily. **Po Chai Pills ("Pill Curing Pills"):** More than twenty herbs in this formula, which has been called "Chinese Alka-Seltzer," work gently and effectively to combat the symptoms of acute stomach flus and dispel Wind/Damp conditions in the Spleen and Stomach, including gas, bloating, constipation, and diarrhea. The pills are actually tiny pellets, with approximately seventy pellets contained in a small plastic vial. Take one vial every three to four hours as needed for relief of symptoms. This formula is considered safe enough for small children. These gentle Chinese patent remedies can safely be combined with any of the following Western herbs. If you need help choosing the most effective formula or combination of herbs for your symptoms, consult an experienced herbalist. _ **Herbal** **Allies**_
To strengthen the immune system and prevent colds and flus:
**Echinacea (** _ **Echinacea** **angustifolia**_ **or** _ **Echinacea** **purpura**_ **):** Herbalists recommend taking echinacea as soon as you feel the first symptoms of a cold or flu— as many people have discovered, the symptoms often disappear thereafter. Recent research conducted in Germany and England showed that people taking low doses of echinacea every day for periods as long as two to three years had significantly fewer colds, flus, and other infections than a control group of the general population as a whole. (Low-level doses are often recommended for people with cancer, lupus, chronic fatigue syndrome, and HIV/AIDS.) If you decide to try low-level doses, take ten to fifteen drops of the tincture daily, or two capsules every morning.**Astragalus:** This extremely safe, supportive herb has been used for thousands of years to increase energy and strengthen resistance to disease.A combination of equal parts echinacea and astragalus will help prevent colds and flus or relieve the symptoms of the illness. |
In addition, partial or complete destruction of the trailing edge of the spine, with or without protrusion of tumour components into the epidural space is considered a relative contraindication.Relative contraindications are radicular pain symptoms, in which vertebroplasty can only occur in combination with the compression stress on the affected spinal segment during surgery.The previous concept consisted primarily of conservative measures, such as bed rest, administration of analgesics, bisphosphonates and wearing a back support corset for several weeks. #### Indications and Contraindications
The goals of vertebroplasty/kyphoplasty are pain reduction, the stabilisation of the vertebral fracture or lesion and thus an improvement in quality of life. The indication for vertebro-/kyphoplasty should, if possible, be issued following an inter-disciplinary consensus among interventional radiologists/neuro-radiologists, orthopaedic surgeons, spinal surgeons, neurologists, oncologists, rheumatologists, etc. The indication for this is in the event of benign spinal lesions, especially in the case of a painful osteoporotic vertebral fracture without adequate trauma and traumatic vertebral body fracture in cases of osteoporosis, where standard surgical therapy does not appear to be indicated. The professional societies consider that a decision should be made in favour of conservative drug therapy if symptoms have not been relieved after 3 weeks. In the event of painful osteolytic lesions within the context of disseminated malignant tumours (metastases, malignant haematological illnesses, lymphoma, multiple myeloma) vertebro-/kyphoplasty is also indicated. Relative contraindications are radicular pain symptoms, in which vertebroplasty can only occur in combination with the compression stress on the affected spinal segment during surgery. In addition, partial or complete destruction of the trailing edge of the spine, with or without protrusion of tumour components into the epidural space is considered a relative contraindication.Generally speaking, patients < 60 years of age should primarily undergo surgical treatment, as to date there is no information regarding the long-term results of vertebroplasty.Furthermore, no more than three vertebral heights should be treated in one sitting.This also applies to a vertebral body height reduction of > 70%. |
Then came the critical step of phase 2: the first clinical trials of the drug in depressed patients.Phase 1 trials were conducted in healthy volunteers to confirm that the drug was safe and to identify the maximum tolerated dose.The most promising candidate drugs that made it through this pre-clinical process of chemical screening and animal testing were then tested in humans.Then thousands of candidate drugs were screened by robots in the lab for their biochemical potency to bind to the target and change the way it worked in a test tube. Once a few candidate drugs had been prioritised from among the thousands initially considered, they were tested on animals, mainly to investigate their safety, and partly in the hope of seeing early signs of efficacy. If a mouse is suspended by its tail, so it is hanging upside down in mid-air, it will struggle to get free or reorient itself, for a while; then it will cease struggling and hang quietly. This procedure became known as the tail suspension test and was widely used and described as an animal model of depression for decades, despite its obvious limitations then and now. The principal rationale was that some of the first anti-depressant drugs had sedative side effects, so they made mice struggle less on the tail suspension test, and it was supposed that any new anti-depressant should have similar effects. There was never any convincing demonstration that the mice were depressed, before or after they were suspended upside down. So the industry wasn't exactly using mice to find new antidepressants; it was using mice to find new drugs that matched the side-effect profile of old anti-depressants. You don't have to be a Cartesian to see that an upside-down mouse is not a great animal model of human depression. The most promising candidate drugs that made it through this pre-clinical process of chemical screening and animal testing were then tested in humans. Phase 1 trials were conducted in healthy volunteers to confirm that the drug was safe and to identify the maximum tolerated dose. Then came the critical step of phase 2: the first clinical trials of the drug in depressed patients.A few hundred patients with MDD were recruited and randomly assigned, usually on a 50/50 split, to treatment with a placebo, or treatment with the new drug, for two or three months.At the start and end of the treatment period, patients were interviewed by a psychiatrist, or completed a self-report questionnaire of their depressive symptoms. |
The pathway called glycolysis converts glucose and fructose to pyruvate with a net production of two ATP molecules.A good example of an allosteric enzyme is to be found in the processes that allow us to use sugars as metabolic fuels.11.2).However, all cytochromes P450 share one property: they all insert a single atom of oxygen, derived from molecular oxygen, into a substrate. Subsequent rearrangements often result in the oxygen being in the form of a hydroxyl group in the final reaction product. This transformation converts a hydrophobic molecule into one that is more hydrophilic. After hydroxylation, other molecules are coupled to the hydroxyl group to make the foreign chemical even more hydrophilic and hence allow it to be rapidly excreted in the urine and feces. Unfortunately, in very rare cases the addition of an oxygen atom into a molecule can increase its reactivity and, instead of being rendered harmless by the action of a cytochrome P450, it is transformed into a very dangerous chemical that can damage DNA. If the damage causes mutation or strand breakage, then cancer can result. For example polycyclic aromatic hydrocarbons, found in tobacco smoke and vehicle exhaust gases, and the chemical aflatoxin, produced by a mold that grows on peanuts, are converted into chemical carcinogens by the action of certain cytochromes P450. Enzymes can be Regulated
In this chapter we have discussed the catalytic role of enzymes in isolation. In fact enzymes are like other proteins in showing the complex behavior described in Chapter 9 such as multiple states, multiple binding sites, quaternary structure, and phosphorylation. For instance, some important enzymes have quaternary structures and show cooperativity between the active sites. Such enzymes will not follow the Michaelis-Menten equation, but instead the curve of initial velocity against substrate concentration will have the same S-shaped or sigmoid curve seen in the binding of oxygen to hemoglobin (Fig. 11.2). A good example of an allosteric enzyme is to be found in the processes that allow us to use sugars as metabolic fuels. The pathway called glycolysis converts glucose and fructose to pyruvate with a net production of two ATP molecules.The first committed step in this pathway is the addition of a second phosphate group to monophosphorylated fructose.The γ phosphate of ATP is transferred to the number 1 carbon of fructose-6-phosphate.Before this step, sugars can be converted to glycogen or metabolized in other ways, but after this step the sugar is committed to be broken down to pyruvate. |
Insect bites represent another common type of breach in the skin.Prior to the development of the tetanus vaccine, the release of the toxin produced by _Clostridium tetani_ into the bloodstream was a major cause of lethality following wounding (Bizzini, 1979).The importance of this defense strategy is illustrated by the dire consequences that follow a breach in this barrier.M cells are found in specialized sections of the intestinal epithelium, the Peyer's patches, which are discrete collections of epithelial cells located above the gut-associated lymphoid tissue (GALT) (Randall _et al._ , 2008). The M cells within the Peyer's patches are critically involved in immunity in that they are an interface between the luminal contents and the tissue-associated immune cells. The final and most prevalent epithelial cell type in the small intestine and colon is the enterocyte. As these simple columnar cells migrate out of the crypt base, they maintain active Notch signaling and repress the transcription factor Math1 (Barker _et al._ , 2007). In this way, they avoid differentiation into a secretory lineage and become absorptive cells. Microvilli cover the apical surface of enterocytes (Figure 1), greatly increasing the surface area by which these cells can transport and absorb nutrients from the lumen. Enterocytes are responsible for the uptake of ions, lipids, peptides, sugars, and water and also maintain a physical barrier between the microorganisms in the intestinal lumen and the underlying tissue. ## Defense
A basic defense mechanism is to block entry of the pathogen into the body, thereby preventing the establishment of an infection. As discussed earlier, the skin is a formidable wall composed of multiple layers of cells packed closely together. The importance of this defense strategy is illustrated by the dire consequences that follow a breach in this barrier. Prior to the development of the tetanus vaccine, the release of the toxin produced by _Clostridium tetani_ into the bloodstream was a major cause of lethality following wounding (Bizzini, 1979). Insect bites represent another common type of breach in the skin.Still, the skin blocks the entry of many infectious agents into our body and prevents the rest of the immune system from being overwhelmed.Simple epithelium must also engage in defense.In the lungs, the ciliated cells of the respiratory epithelium work together with goblet cells as part of the mucociliary escalator (Lillehoj _et al._ , 2013). |
The methyl-cobalamine form is the most effective.If you take oral B12, it's generally advised to take 2 mg a day for one month, and then 1 mg daily thereafter.Folic acid needs adequate amounts of B12 and B6 to decrease homocysteine.It's important to know that lutein and zeaxanthin compete with beta-carotene, as well as vitamins with A and E, so adequate amounts must be consumed for them to be effective. Along with vitamin E, lutein protects against damage caused by blue light, stabilizing the pigment layer underneath the retina. It is especially helpful to take lutein at night when the eyes are healing. Spinach, collard greens, and eggs have very high levels of lutein, but I recommend taking a supplement of lutein daily. B vitamins: a B complex vitamin containing 50 or 100 mg of all the B vitamins. The B vitamins include thiamin (B1), riboflavin (B2), pyridoxine (B6), B12, niacin, pantothenic acid, biotin, and folic acid. Choline and inositol are unofficial members of the B vitamin family, and are often included in B vitamin complexes. Most multivitamins, however, will not contain enough B vitamins, which is why a B complex vitamin is important. B vitamins help maintain the myelin that protects nerves, the fatty acids around nerves, and the retinal receptors. B12 is necessary for optic nerve function, and supports the myelin sheaths that protect nerve fibers. B12 also protects the optic nerve from cyanide toxicity, which can result from alcohol use and smoking. B6 (50–100 mg daily) also helps the essential fatty acids attached to nerves. Even biotin and inositol have been found to have some role in retina function. Folic acid (400 mcg daily) decreases levels of homocysteine, a compound now recognized as a major contributor to arterial blockage (including blockage of the retinal arteries), as well as the development of heart disease, hardening of the arteries (atherosclerosis), and osteoporosis. Folic acid needs adequate amounts of B12 and B6 to decrease homocysteine. If you take oral B12, it's generally advised to take 2 mg a day for one month, and then 1 mg daily thereafter. The methyl-cobalamine form is the most effective.A company located in Phoenix, Arizona, named KMI, also manufactures a B12 spray that is absorbed from the mouth in seconds and so does not require digestion.I recommend this product highly, at least on a once-a-week basis.I use either sublingual B12 or the B12 spray periodically to make sure I am absorbing adequate amounts of this essential vitamin. |
A-C, abbreviation for _alveolar-capillary._
acacia gum, a dried, gummy exudate of the acacia tree _(Acacia senegal)_ used as a suspending or emulsifying agent in medicines.**
a.c., (in prescriptions) abbreviation for _ante cibum,_ a Latin phrase meaning 'before meals.'See **ad-.ac-.** abbreviation for _accommodative convergence._ See **AC/A ratio**.2.** abbreviation for **alternating current.**
abuse recovery: financial, a nursing outcome from the Nursing Outcomes Classification (NOC) defined as extent of control of monetary and legal matters following financial exploitation. See also **Nursing Outcomes Classification. **
abuse recovery: physical, a nursing outcome from the Nursing Outcomes Classification (NOC) defined as extent of healing of physical injuries due to abuse. See also **Nursing Outcomes Classification. **
abuse recovery: sexual, a nursing outcome from the Nursing Outcomes Classification (NOC) defined as extent of healing of physical and psychological injuries due to sexual abuse or exploitation. See also **Nursing Outcomes Classification. **
abusive behavior self-restraint, a nursing outcome from the Nursing Outcomes Classification (NOC) defined as self-restraint of abusive and neglectful behaviors towards others. See also **Nursing Outcomes Classification. **
abutment / but **′** m nt/ [Fr, _abouter_ to place end to end], a tooth, root, or implant that supports and provides retention for a fixed or removable dental prosthesis. **Frontal view of abutment** _(Block, 2011)_
abutment tooth, a tooth selected to support a prosthesis. ABVD, an anticancer drug combination of DOXOrubicin, bleomycin, vinBLASTine, and dacarbazine. Ac, **1. ** symbol for the element **actinium**. **2. ** abbreviation for **acetyl** (CH3CO). AC, **1. ** abbreviation for **alternating current. 2. ** abbreviation for _accommodative convergence._ See **AC/A ratio**. ac-. See **ad-. **
a.c., (in prescriptions) abbreviation for _ante cibum,_ a Latin phrase meaning 'before meals.' A-C, abbreviation for _alveolar-capillary._
acacia gum, a dried, gummy exudate of the acacia tree _(Acacia senegal)_ used as a suspending or emulsifying agent in medicines.Academy of Nutrition and Dietetics, an organization that advances the nutritional well-being of the American public.Membership is primarily registered dietitians.Formerly known as the American Dietetic Association (ADA).acai /ah-sigh-ee/, an antioxidant extract from a Brazilian berry used in skin products and juices. |
It is the professional duty of a practitioner who operates a CBCT unit or who requests a CBCT study to provide a written interpretive report describing the imaging findings based on examination of the entire image data set.## Interpretive Report
Cone-beam imaging comprises the technical component of patient exposure.**Direct volume rendering** is a much simpler process that involves selecting an arbitrary threshold of voxel intensities, below or above which all gray values are eliminated. Numerous techniques are available; however, the most commonly used is **maximum intensity projection** (MIP). MIP visualizations are achieved by evaluating each voxel value along an imaginary projection ray from the observer's eyes within a particular volume of interest and representing only the highest value as the display value. Voxel intensities that are below an arbitrary threshold are eliminated (Fig. 12-10). MIP images have great utility for demonstration of the location of impacted teeth, for TMJ evaluation, for identification of fractures, for craniofacial analysis, for surgical follow-up, for assessment of cervical spine anomalies, and for demonstration of soft tissue dystrophic calcifications. FIGURE 12-10 MIP. This method produces a "pseudo"–three-dimensional image by evaluating each voxel value along an imaginary projection ray from the observer's eyes within the data set and then representing only the highest value as the display value. In this example, an axial projection **(A)** is used as the reference image. A projection ray is identified throughout the entire volumetric data set along which individual voxels are identified, each with varying grayscale intensity corresponding to various tissue densities, such as fat, muscle, air, and bone. The MIP algorithm selects only the values along the projection ray that have the highest values (usually corresponding to bone or metal) and represents this as only one pixel on the resultant image **(B)**. ## Interpretive Report
Cone-beam imaging comprises the technical component of patient exposure. It is the professional duty of a practitioner who operates a CBCT unit or who requests a CBCT study to provide a written interpretive report describing the imaging findings based on examination of the entire image data set.Patient diagnosis may often be complex, and management may involve numerous practitioners.An interpretation report serves as the optimal method of communication of interpretation findings for CBCT.Often this report includes selected images that best document significant findings.It is imperative that all image data be systematically reviewed for disease. |
The symptom of fatigue is omnipresent.Accordingly, fatigue is both a symptom and a syndrome, or pattern of illness.From their physician or from some other source, they acquire the diagnosis of chronic fatigue syndrome.Many individuals who are chronically fatigued believe something is physically wrong with them and end up having more than just a symptom.A familiar, or backward-looking, theme is the casting of symptoms in the form of pain, which could have been seized from the 1920s. Mistrust of physicians, however, is a relatively new theme, for until the 1960s near veneration of the doctor was the rule, the demigod in white whose patients would willingly sacrifice their ovaries to suit his theories. For this male patient in the 1980s there was no question of venerating doctors. He mistrusted them deeply. He had in fact "shopped" from doctor to doctor, never happy with the diagnosis he received from any. As an inpatient in the clinic he continued to express himself in the most disgruntled terms about the medical staff and what could be expected of them. Mistrust of the doctor and refusal to accept his or her reassurance gives somatization at the end of the twentieth century its particular stamp. ### _Fatigue_
In addition to psychogenic pain, fatigue is the other great somatoform symptom of the end of the twentieth century. For many reasons one might expect people leading frenetic, compartmentalized lives in crowded cities to feel tired. But we are talking about fatigue as an illness rather than simply feeling tired at the end of the day. Many individuals who are chronically fatigued believe something is physically wrong with them and end up having more than just a symptom. From their physician or from some other source, they acquire the diagnosis of chronic fatigue syndrome. Accordingly, fatigue is both a symptom and a syndrome, or pattern of illness. The symptom of fatigue is omnipresent.They used another 285 persons in a nonmedical setting as a control group.Of those workers surveyed in the hospital setting, 41 percent complained of feeling fatigued within the last seventy-two hours.Was it just the stress of hospital work?No, 37 percent of those in the nonhospital setting were also fatigued. |
Outcomes were analyzed as follows (Table 6.1):
Table 6.1
Level III evidence prospective comparative review (outcomes at 6 months) Ma et al.Final assessment was performed on all cases at 6 months and a standardized examination performed.These included SSG, FTSG, revision amputation, VY advancement, Kutler flaps, cross finger flaps and dressings alone.#### Level III Evidence – Retrospective Comparative Reviews
There are a number of retrospective and prospective comparative reviews, but the majority of these are limited in their comparison of techniques. Soderberg et al. looked at various methods of reconstruction (graft, primary closure and flaps) versus conservative management in fingertip amputations with bone exposure, in a retrospective comparative study [46]. These were divided into two groups, conservative versus surgical, with no sub-analysis of each type of closure method performed. There were 36 conservatively managed fingertips and 34 surgically treated, and follow up varied from 6 months to 4 years. The conservative treatment group fared better in terms of 2PD, pain and precision grasp. Number of lost working days was equivalent in both groups. This study suggests that conservative management of fingertip injuries results in better outcomes than surgical intervention. However, as there is no analysis of each individual surgical method, the poor results in the surgical group may have been biased by one particularly poor method, such as split skin grafting. Ma et al. performed one of the largest prospective comparative studies, looking at 140 cases of fingertip injuries, with 7 different techniques [2]. These included SSG, FTSG, revision amputation, VY advancement, Kutler flaps, cross finger flaps and dressings alone. Final assessment was performed on all cases at 6 months and a standardized examination performed. Outcomes were analyzed as follows (Table 6.1):
Table 6.1
Level III evidence prospective comparative review (outcomes at 6 months) Ma et al.Healing problems – greatest in cross finger flaps with 27 % incidence of infection or graft loss, followed closely by Kutler flaps at 23 %.The other methods were comparable with healing problems in 11–17 %.2.Cosmesis – scored from 1 (poor) to 4 (excellent) by both patient and the surgeon.In general the scores for all methods were similar, with the best scores for the VY plasty.3.Scar tenderness. |
# Cardiomyopathy
Cardiomyopathy (I42.-) presents a clinical picture of a dilated heart, flabby heart muscles, and normal coronary arteries.For the procedure, assign code 0W9D3ZZ, Drainage of pericardial cavity, percutaneous approach.Assign code I31.4, Cardiac tamponade.When a hypertensive crisis such as hypertensive urgency or emergency is documented along with hypertensive heart or chronic kidney disease or a combination of both diseases, a code from category I16, Hypertensive crisis, is assigned along with a code from categories I11, I12, or I13. Further information in classifying hypertension and other associated conditions is provided later in this chapter. # Cardiac Tamponade
Cardiac tamponade (I31.4), also referred to as pericardial tamponade or tamponade, is the compression of the heart caused by the accumulation of fluid inside the pericardium. Cardiac tamponade is often associated with viral or bacterial pericarditis. This condition typically occurs as a result of chest trauma, heart rupture, dissecting aortic aneurysm, cancer, cardiac surgery, renal failure, and/or acute myocardial infarction. The underlying cause of the tamponade should be sequenced first, followed by code I31.4. Cardiac tamponade can be life threatening if left untreated. The goals of therapy are to improve heart function, relieve symptoms, and treat the tamponade. This can be accomplished with pericardiocentesis (root operation "Drainage," body part "pericardial cavity") or creation of a pericardial window (root operation "Drainage," body part "pericardium"). For example, a patient develops increased pericardial effusion and undergoes pericardiocentesis (percutaneous approach) due to rapid pericardial tamponade. Assign code I31.4, Cardiac tamponade. For the procedure, assign code 0W9D3ZZ, Drainage of pericardial cavity, percutaneous approach. # Cardiomyopathy
Cardiomyopathy (I42.-) presents a clinical picture of a dilated heart, flabby heart muscles, and normal coronary arteries.It is a known cause of sudden cardiac death in younger athletes, and young people are more likely to develop a more severe form of hypertrophic cardiomyopathy than older adults.HCM can be either obstructive (I42.1) or nonobstructive (I42.2) and is frequently asymptomatic until sudden cardiac death. |
In a sample of 151 outpatients with major depressive disorder who were presenting with psychoactive drug-free major depressive episode, 23.1% met the criteria for DMX3 [39].The specific diagnostic entity, 'depressive mixed state', has been defined as a major depressive episode plus three or more intra-episodic hypomanic symptoms (DMX3).The broadest definition permits the presence of one or more depressive symptoms within a manic episode to be sufficient for diagnosis of a mixed episode [35]. Swann and colleagues, using a broad definition of this nature, found that the depressive symptoms responded poorly to lithium compared to the classic manic symptoms [36]. The depressive manic patients had better outcomes on divalproex. A moderate definition midway between the strict and broad criteria has been proposed, in which a mixed episode would be defined as a full manic presentation with three or more symptoms of depression [37]. Just as limited symptoms of depression can accompany a manic episode, limited symptoms of hypomania may be present during a depressive episode. Although there is no formal DSM-IV-TR category for a patient who is experiencing simultaneous or closely juxtaposed symptoms of depression and hypomania, it appears that it is common. The Stanley Foundation Bipolar Treatment Network prospectively studied more than 900 patients for up to seven years, and evaluated the co-occurrence of depressive and hypo-manic symptoms. Amongst all visits in which patients had hypomanic symptoms, 57% met criteria for mixed hypo-mania defined as Young Mania Rating Scale score of 12 or higher and an Inventory of Depressive Symptomatology—Clinician-Rated Version score of 15 or higher [38]. The specific diagnostic entity, 'depressive mixed state', has been defined as a major depressive episode plus three or more intra-episodic hypomanic symptoms (DMX3). In a sample of 151 outpatients with major depressive disorder who were presenting with psychoactive drug-free major depressive episode, 23.1% met the criteria for DMX3 [39].A number of reports suggest that the number and severity of depressive symptoms during mania or hypomania is a continuous rather than a modal phenomenon.In a study of 37 outpatients, depending on the threshold used, the prevalence of mixed features during a manic or hypomanic episode rose incrementally from 5–73% [40]. |
Histological distinction can be made if attention is paid to the symmetry of the lesion, the presence of hobnail endothelial cells with papillary projections and the absence of inflammation in hobnail haemangioma.Some lesions occur in children. ###### Sex
There is a slight predilection for males. ###### Pathophysiology
###### Predisposing factors
Trauma may play a part in its pathogenesis [4]. Occasionally, lesions vary according to the timing within the menstrual cycle [8]. ###### Pathology
Pathological examination shows dilated vascular channels in the papillary and high reticular dermis, with a single layer of endothelial cells lining intraluminal papillary projections. These cells have a hobnail ('matchstick') appearance. They may occasionally be more numerous and appear to fill the lumen of the vessel. The vascular channels tend to disappear in the mid and lower reticular dermis, and the endothelial cells become less prominent and lose the hobnail appearance. Haemosiderin deposition is prominent and can be highlighted with a Perl stain. The endothelial cells stain for the lymphatic marker podoplanin (D2-40), suggesting that these lesions represent lymphangiomas rather than haemangiomas [9]. This has led to the suggestion that lesions represent a form of lymphatic malformation [5]. This is based on the usually negative staining of the endothelial cells in the proliferation for the endothelial cell marker Wilm tumour 1 gene [6, 7]. The pathological appearance may resemble Kaposi sarcoma, but this differential diagnosis can usually be resolved by clinicopathological correlation, as hobnail haemangioma is a solitary entity whereas Kaposi sarcoma is usually composed of multiple lesions. Histological distinction can be made if attention is paid to the symmetry of the lesion, the presence of hobnail endothelial cells with papillary projections and the absence of inflammation in hobnail haemangioma.###### Clinical features
###### History and presentation
This entity presents as a rapidly developing asymptomatic solitary red or brown lesion, which in some cases has a central raised violaceous papule and is surrounded by a paler brown halo (targetoid appearance) [1].Lesions with a clinical targetoid appearance are easy to diagnose. |
Supplementation with only 200 mcg of selenium has been shown to increase NK cell activity.Its immune system activities include stimulating phagocyte activity (the white cells that destroy invading microorganisms), increasing T lymphocytes, and improving thymus function.Many drugs inhibit B12 absorption, including oral contraceptives, time-released potassium, histamine-2 blockers used for gastritis and ulcers (Axid, Pepsin, Tagamet, Zantac), proton pump inhibitors (Prevacid, Prilosec), antibiotics, and cholesterol-lowering drugs. There is virtually no known toxicity to B12, even in high dosages. **Antioxidant Minerals** : Several common trace minerals such as selenium and zinc are critical for proper immune function. There is concern over agricultural practices that deplete soil (and therefore the foods grown on the depleted soil) of essential trace elements, particularly those that affect immunity. This makes supplementation mandatory in immune deficiency states or when fighting an infection. SELENIUM: Selenium, considered one of the most important trace minerals in the body, is necessary for the production of the antioxidant enzyme system called glutathione peroxidase, a substance that works with vitamin E and helps to convert harmful oxidized fats into less harmful substances. Selenium also has antioxidant roles of its own and is one of the most potent anticancer nutrients. Richard A. Passwater, Ph.D., who has researched selenium since 1959, contends that it not only prevents cancer, but may cure some of its types. In addition, selenium helps thyroid hormone function, protects against heart attack and stroke, and helps to remove mercury and cadmium from the system. Its immune system activities include stimulating phagocyte activity (the white cells that destroy invading microorganisms), increasing T lymphocytes, and improving thymus function. Supplementation with only 200 mcg of selenium has been shown to increase NK cell activity.The RDA for selenium is 55 mcg per day, though optimal protection is achieved at 200 mcg daily.Selenium is synergistic with vitamin E, helping to enhance its antioxidant effect.Therapeutic dosages can range from 400–1,200 mcg, though these higher dosages should not be used for longer than one month without professional supervision. |
For instance, if the patient is going to be left without language, is it worth it?At what age?At what point do you stop?'Surgery,' he says, 'is still relatively crude compared to the delicacy of the cortex.Marsh seems to despair at the impossibility of the task, and begins to speak about the disjunction between the act of surgery and the workings of the brain.The better I came to know him, though, the more this robust veteran from the battlefields of neurosurgery admitted to being 'haunted by fears of senile dementia'. When I ask exactly what that meant to him, Marsh recalls 'the grotesque caricatures of human beings I nursed when I worked as a psycho-geriatric nursing assistant in 1976, and also the hollow, though benign and decent shell, my admirable father became. It means being only interested in eating, and otherwise being lost, dribbling prostatically with trousers smelling of urine.' As well as being thoughtful, humane, and articulate, Mr Marsh (as he's known to colleagues at St George's Hospital) is an ideal person with whom to explore the darker dimensions of cerebral failure. He has not only operated on hundreds of human brains, and studied thousands of brain scans, he has also reflected deeply on the meaning of his remarkable experience as a neurosurgeon, on the limits of human reason, and on his own errors of judgement. 'We often don't cure people with our interventions,' he admits, addressing a crux of modern medicine, 'we simply prolong their lives at a cost.' Marsh's firmly held belief is that, in neurosurgery, death is often a good outcome, compared to being left horribly disabled or in a persistent vegetative state. He recalls the times he has been woken in the night to adjudicate the appropriate response to a cerebral emergency. 'It's always easier to treat a patient than not to treat,' he tells me. 'But you're almost certainly going to create a disabled person at the cost of saving a life.' Marsh seems to despair at the impossibility of the task, and begins to speak about the disjunction between the act of surgery and the workings of the brain. 'Surgery,' he says, 'is still relatively crude compared to the delicacy of the cortex. At what point do you stop? At what age? For instance, if the patient is going to be left without language, is it worth it?How many "good" results justify how many "bad" ones?That is very, very difficult to assess.If you decide you must treat everyone, you will generate a lot of human suffering, especially among families.'Marsh digresses into anecdote, in the chatty way he prefers. |
One example is the gene for transforming growth factor beta-1 ( _TGF_ β _-1_ ).Polymorphisms in other genes may modify _CFTR_ expression and function.9.Individuals with either 12 or 13 TG repeats are more likely to have a disease phenotype than those with only 11 TG repeats.Also, this influence can be further modified by the number of TG repeats in an adjacent region.**Table 16-4. Relationship Between CFTR Protein Function and Observed Symptoms**
5. Although CF does not have locus heterogeneity, there is marked allelic heterogeneity. Over 1000 mutations in the CF gene have been reported to the Cystic Fibrosis Genetic Analysis Consortium as of August 2012. 6. Although there is a large degree of allelic heterogeneity, a single mutation is found in 75% of persons with CF who are of northern European descent. This mutation is a 3-bp deletion in exon 10 that results in a missing phenylalanine amino acid at position 508 of the _CFTR_ protein. This is designated as deltaF508. As was discussed in Chapter 15, it is likely that the high incidence of this mutation is due to a heterozygote advantage with a resistance to cholera deaths. 7. There are multiple different pathogenic mechanisms that may cause CF. These have been grouped in five classes of mutations based on the mechanism (Table 16-5). **Table 16-5. Functional Classes of Cystic Fibrosis Mutations**
8. Several intragenic variants in the noncoding regions can influence gene expression. A "poly-T" tract in intron 8 affects gene expression by influencing splicing efficiency. Persons with 7T or 9T variants tend to have normal transcription of the _CFTR_ gene. Those with the 5T variant may generate an anomalous protein product. Also, this influence can be further modified by the number of TG repeats in an adjacent region. Individuals with either 12 or 13 TG repeats are more likely to have a disease phenotype than those with only 11 TG repeats. 9. Polymorphisms in other genes may modify _CFTR_ expression and function. One example is the gene for transforming growth factor beta-1 ( _TGF_ β _-1_ ).Changes in _TGF_ β _-1_ have been reported as modifiers of the CF phenotype.Two mutations of the _TGF_ β _-1_ gene have been described that are associated with _increased_ levels of the protein.Higher levels of _TGF_ β _1_ are associated with a doubling of the risk of worse pulmonary disease in patients with CF.Table 16-6 lists some of the genes known to modify _CFTR_ expression and function. |
**virulent** Something, such as a virus or bacteria, that can overwhelm a body's defense against disease.**teleology** An explanation that refers to some purpose or end.**protozoan** Any member of the subkingdom Protozoa, a collection of single-celled eukaryotic organisms.**hemoglobin** Iron-containing protein found in the red blood cells that transports oxygen to the tissues. **histology** A branch of biology studying the organization and makeup of animal and plant tissues. **homeostasis** A state of equilibrium or balance in body metabolism. **hormone** A substance in both animals and plants that helps to regulate physical activities in the body and keep them stable. **humour** In ancient and medieval physiology, four body fluids (blood, phlegm, black bile, and yellow bile) that determined people's temperaments and health by their relative proportions. **hypothyroidism** A condition caused by a lack of adequate hormone production from the thyroid. It is characterized by slowness, sleepiness, weakness, and dry skin. In young children, it can cause intellectual disabilities or dwarfism. **materia medica** A body of knowledge on medicines and their effects. **pandemic** An epidemic that takes place over a widely spread area. **pathogenic** Causing or capable of causing disease. **pathology** A branch of medical studies related to discovering causes of disease and the effects of disease on living things. **philosopher's stone** A legendary substance that alchemists believed could transform lead into gold or other precious metals. **phlegm** Thick mucus in abnormal amounts. **plasma** The fluid part of the blood, as differentiated from the suspended material (i.e., red blood cells, white blood cells, platelets, etc.). **protozoan** Any member of the subkingdom Protozoa, a collection of single-celled eukaryotic organisms. **teleology** An explanation that refers to some purpose or end. **virulent** Something, such as a virus or bacteria, that can overwhelm a body's defense against disease.Historical studies include George T. Bettany, _Eminent Doctors: Their Lives and Their Work_ , 2 vol.(1885, reprinted 1972); Arturo Castiglioni, _A History of Medicine_ , 2nd rev.ed.(1947; originally published in Italian, 1927), a classic work; Fielding H. Garrison, _An Introduction to the History of Medicine_ , 4th rev.ed. |
The anterior margin is used to define the anterior approach (of Henry) to the radius and can be extended down to the wrist at the level of the insertion of brachioradialis.Its anterior and posterior margins are used to define the surgical approaches to the radius and to discover planes of cleavage.Vascular supply
Extensor carpi radialis brevis receives its arterial supply principally from two pedicles: a single branch from the radial recurrent artery, and a branch of the radial artery that arises about one-third of the way down the forearm. There is an additional blood supply proximally from branches from the radial collateral branch of the profunda brachii. Innervation
Extensor carpi radialis brevis is innervated by a branch from the radial nerve or from the posterior interosseous nerve, C7 and 8. The branch to extensor carpi radialis brevis arises before the nerve enters the arcade of Frohse. Actions
Extensor carpi radialis brevis is the prime dorsiflexor of the wrist. It acts with extensor carpi radialis longus as an extensor and abductor of the wrist and mid-carpal joints. It acts in synergism with the finger flexors when making a fist. Testing
The muscle belly and tendon of extensor carpi radialis brevis can be palpated when the wrist is extended and abducted against resistance with the forearm pronated. ##### 'Mobile wad' of Henry
Henry (1957) described a 'mobile wad' of three muscles, brachioradialis and the extensors carpi radialis longus and brevis, which are visible and palpable below the lateral epicondyle of the humerus, lying on the lateral aspect of the radius. The wad is tethered by a fan-shaped leash of vessels derived from the radial artery (the radial recurrent artery) that has to be released before the muscles can be fully mobilized. Its anterior and posterior margins are used to define the surgical approaches to the radius and to discover planes of cleavage. The anterior margin is used to define the anterior approach (of Henry) to the radius and can be extended down to the wrist at the level of the insertion of brachioradialis.More distally, pronator teres is released.This approach is particularly useful for plating fractures of the radius.The posterior margin is used to expose the back of the forearm (posterior approach of Thompson) and, if need be, the posterior interosseous nerve, which, in any event, should be protected; unlike the anterior approach, this approach cannot be extended. |
But just as people deny hearing loss, they overstate hearing aid use.Only one in five people who could benefit from a hearing aid uses one, according to the NIDCD.The phone isn't working properly... My wife mumbles."It's too noisy in this restaurant... at this party... on this bus."I can hear just fine... People talk too fast...Those numbers should dispel the myth that hearing loss is a condition of aging. Unfortunately, they don't. And here's why:
Hearing loss may not be a condition of aging, but it is a condition of the elderly. Two-thirds of Americans seventy and older have a hearing impairment. But in only 8 percent of men and 16 percent of women did the loss begin after the age of seventy. The vast majority had started to lose their hearing decades earlier. Since many younger people are loathe to admit the loss, the result is the misperception that people with hearing loss are elderly. The overall number of people with hearing loss should have gone down, rather than up. We have eliminated most of the childhood diseases, like meningitis, scarlet fever, mumps, and measles, that can cause hearing loss. Our society has moved from a noisy industrial manufacturing base to a postindustrial service- and information-based economy. OSHA regulates noise exposure in the workplace. We are healthier than ever. Life expectancy keeps going up. Worldwide, 380 million people have "disabling" hearing loss, according to a 2013 report by the World Health Organization. The economic impact is enormous: "In developing countries, children with hearing loss and deafness rarely receive any schooling," the report states. "Adults with hearing loss also have a much higher unemployment rate." * * *
Not only can it be hard to admit to hearing loss, but because the onset is usually gradual, it's also sometimes unrecognized. Friends and family may point out that a loved one seems to be having trouble hearing, only to be met with excuses. "I can hear just fine... People talk too fast... It's too noisy in this restaurant... at this party... on this bus. The phone isn't working properly... My wife mumbles." Only one in five people who could benefit from a hearing aid uses one, according to the NIDCD. But just as people deny hearing loss, they overstate hearing aid use.Frank Lin also studied hearing aid use, again using audiometric testing.He found that only one in seven over the age of fifty who could benefit used hearing aids.(For working-age adults fifty to fifty-nine, the number drops to one in twenty.)In developing countries, according to WHO, the number is one in forty. |
* Excess weight is a global epidemic, a disease, a sign of illness — a complex syndrome.Besides this, excess weight may also result from abnormal retention of water, bizarre muscular development, or some tumours, including a few endocrinal disorders.Yet, the general cause of the disorder is plain overeating.* * *
Self-Help
* To reduce blood pressure and avoid swallowing blood, sit upright and lean forward
* Use the thumb and index finger to pinch the soft part of nose (5-10 minutes); breathe through the mouth. If bleeding doesn't stop, hold for another 5-10 minutes
* Don't irritate the nose (picking, rubbing or blowing it); this may lead to fresh bleeding
* Apply a water-based lubricant to your nostrils
* If bleeding does not stop within 20 minutes, seek your doctor's advice immediately. What
Obesity is a chronic disease. Being overweight is defined as having a body mass index (BMI) of 25.0 to 29.9. Obesity is defined as having a BMI of 30.0 or above. Your body mass index (BMI) is a yardstick derived from the computation of your weight related to your height. _ Did You Know?_
_Obesity is an epidemic in the Americas and Europe_. _Reports suggest that over 6-8 per cent of the population, in India, is obese and, the numbers are growing, thanks to fast-food, change of lifestyle and sedentary habits, among other factors_. How & Why
Obesity is believed to be an outcome of certain interactions between our genes and the environment. While overweight is defined as 'abnormally high body weight due to excessive accumulation of body fat', there are certain ethnic differences in the distribution of subcutaneous fat. Yet, the general cause of the disorder is plain overeating. Besides this, excess weight may also result from abnormal retention of water, bizarre muscular development, or some tumours, including a few endocrinal disorders. * Excess weight is a global epidemic, a disease, a sign of illness — a complex syndrome. |
It is always important to get a complete drug history on each person being evaluated.(In subsequent clinical chapters, additional specific drugs will be listed as they contribute to particular psychiatric disorders.)Although a very wide range of prescription and nonprescription drugs can cause psychiatric symptoms, the two most commonly encountered in clinical practice are alcohol and caffeine.Not only can the use of recreational drugs produce psychological symptoms, but frequently such substances markedly interfere with psychological or psychiatric treatment. A common example of this occurs when moderate-to-heavy alcohol use adversely affects liver functioning, causing prescribed psychotropic medications to be inadequately metabolized. The result can be inadequate blood levels of the medication, as in the following case. Case 12
Jerry H. was first seen for psychiatric consultation six months ago. He presented with a classic major depression, which had emerged during an especially difficult marital separation and divorce. Jerry had initially reported only occasional social drinking, "a few times a month." After five months of psychotherapy and aggressive antidepressant treatment, he was still quite depressed. Three antidepressant medications had been tried in conjunction with cognitive-behavioral psychotherapy, with little improvement. It was eventually learned that Jerry actually had been consuming four to six beers every night. Three weeks after the alcohol use had been curtailed, he began to show his first positive response to the antidepressant. The alcohol use (unknown to the therapist for five months) had been the main culprit in preventing antidepressants from ever reaching adequate blood levels. Although a very wide range of prescription and nonprescription drugs can cause psychiatric symptoms, the two most commonly encountered in clinical practice are alcohol and caffeine. (In subsequent clinical chapters, additional specific drugs will be listed as they contribute to particular psychiatric disorders.) It is always important to get a complete drug history on each person being evaluated.Obviously, excessive use often leads to two additional complications: addiction or dependence and the use of the drug as a means of acting out (emotional numbing), which can interfere with the process of self-exploration, abreaction, or "working through" in psychotherapy. |
Four stimulations can take ~ 30 minutes to complete.It requires a minimum of four stimulations: right cool (RC), right warm (RW), left cool (LC), and left warm (LW).Bithermal caloric testing also takes a relatively long time to perform when compared with the rest of the VNG battery.HSN may be the result of peripheral as well as central vestibular lesions. The recording of three or more beats of horizontal nystagmus after horizontal head shake, if contralesional, may suggest a (unilateral) peripheral vestibular imbalance.. Typically, if the origin is peripheral, other subtests of the VNG will support this diagnosis. A diagnosis of peripheral vestibular dysfunction cannot be ruled out based solely on a negative head-shake test. Post-HSN may also be due to central pathology and patterns may vary. It may be purely vertical, purely horizontal, mixed horizontal–vertical, or mixed horizontal–vertical–torsional. Post-HSN may be the result of a central velocity storage abnormality. ##### Bithermal Caloric Testing
Bithermal caloric testing (BCT) is used to stimulate the HSCC of both the right and left ear. Each ear is stimulated separately with water or air, allowing the examiner to assess the function of the right and left systems independently. Bithermal caloric testing is a very useful computerized test and has many advantages, including the ability to aid in identifying the site of dysfunction and lateralizing a lesion. The equipment for BCT is also readily available in most areas, which makes the test readily accessible for evaluation of the dizzy patient. However, BCT does not examine the entire right and left peripheral system. During BCT, only low-frequency (0.003 Hz) stimulation is presented to the HSCC (innervated by the superior portion of the vestibular nerve). This leaves the functioning of other neural structures of the vestibular system, such as the PSCC, ASCC, utricle, saccule, and inferior vestibular nerve, unknown. Bithermal caloric testing also takes a relatively long time to perform when compared with the rest of the VNG battery. It requires a minimum of four stimulations: right cool (RC), right warm (RW), left cool (LC), and left warm (LW). Four stimulations can take ~ 30 minutes to complete.Lastly, BCT does not give any information about vestibular compensation; therefore, BCT is best used as part of a battery of tests to aid a physician in diagnosis.During BCT, the patient is supine with the head ventroflexed 30° while the ear canal is stimulated (via air or water) to create a temperature gradient across the HSCC, which causes a change in the density of endolymph. |
Leukocytozoon is transmitted by black flies (Simuliidae), which act as intermediate hosts and inject sporozoites into the blood of susceptible avian species.Wright-Giemsa stain.Figure 19.52 Leukocytozoon macrogametocytes (arrows) and microgametocytes (arrowheads) in the blood film of a hawk (Buteo jamaicensis).The life-cycle of Plasmodium is similar to that of Haemoproteus, except that mosquitoes (Culicidae) act as intermediate hosts and schizogony occurs in the red blood and endothelial cells of various organs.67 The key features used to differentiate Plasmodium from Haemoproteus are the presence of schizogony in the peripheral blood, parasite stages within thrombocytes and leukocytes, and gametocytes causing marked displacement of the erythrocyte nucleus.2
## Leukocytozoon
Leukocytozoon, which is a protozoan parasite commonly found in the blood of wild birds, is identified by large, dark-staining macrogametocytes or light-staining microgametocytes. The large gametocytes grossly distort the infected host cell, thereby elongating and distending the cell and making the identification of the cell difficult (Fig. 19.52).125 Some parasitologists believe that immature erythrocytes rather than leukocytes, as suggested by the name of the parasite, serve as the host cell for Leukocytozoon.121 As with Haemoproteus, only the gametocytes of Leukocytozoon occur in the peripheral blood. Parasitized cells appear to have two nuclei: a dark-staining, host-cell nucleus that lies along the cell membrane; and a pale pink–staining, parasite nucleus that lies adjacent to the host-cell nucleus. Leukocytozoon gametocytes do not contain the refractile pigment granules seen in the gametocytes of Haemoproteus and Plasmodium. Figure 19.52 Leukocytozoon macrogametocytes (arrows) and microgametocytes (arrowheads) in the blood film of a hawk (Buteo jamaicensis). Wright-Giemsa stain. Leukocytozoon is transmitted by black flies (Simuliidae), which act as intermediate hosts and inject sporozoites into the blood of susceptible avian species.Schizonts mature and then rupture to release merozoites that infect erythrocytes and, possibly, leukocytes.Merozoites become gametocytes in the peripheral blood or are ingested by macrophages to become megaloschizonts in tissues such as the liver, lung, and kidney.Megaloschizonts also release merozoites that develop into gametocytes. |
Measures to relieve symptoms would depend on the area of the musculoskeletal system that is primarily involved—peripheral or axial.As soon as symptoms improve, physical therapy should commence.In this situation, rest and drug treatment to relieve pain and inflammation should be instituted.Therefore, much time is spent educating patients as to the nature of inflammatory arthritis, the relationship between the skin and joint disease, as well as the other features of the disease and the co-morbidities which may occur in patients with psoriatic arthritis. This book is designed specifically for patient education. Similar approaches have been taken at other centres. There are often public lectures dealing with inflammatory arthritis and, in many centres where experts in psoriatic arthritis are present, there are specific lectures on psoriatic arthritis. Many dermatologists provide educational lectures on psoriasis and its associated arthritis. An educated patient will appreciate the need for early therapy, as well as the role of the non-drug interventions, in the management of psoriatic arthritis. ### **Physical therapy**
Benefits of low impact exercises are seen across all age groups in patients with and without arthritis, and patients with psoriatic arthritis are no exception. More specific exercise regimens are of help to patients. Although exercise programmes specific to psoriatic arthritis have not been developed, since psoriatic arthritis can affect both the peripheral arthritis and the spine, exercise programmes developed for rheumatoid arthritis and ankylosing spondylitis are recommended to patients with psoriatic arthritis. When psoriatic arthritis is active, and the patient has a number of swollen and painful joints, physical therapy may not be feasible. In this situation, rest and drug treatment to relieve pain and inflammation should be instituted. As soon as symptoms improve, physical therapy should commence. Measures to relieve symptoms would depend on the area of the musculoskeletal system that is primarily involved—peripheral or axial.Initially the patients may benefit from therapy provided at a physical therapy department but, once they have mastered the exercises, it would be more feasible and less expensive to continue with the exercises at home, and incorporate these exercises into the daily routine of life. |
If you're struggling with feelings of depression or mental confusion, consider reaching out to a psychologist or other mental-health professional.If no such center is located in your area, seek out a physical or occupational therapist who is willing to help you get moving, slowly, again.Or, "I can't find anything wrong with you, so I can't help you." But studies have shown that most such people are truly suffering, so what's going on? The most enlightened approach to helping these patients with long-term symptoms is to understand that they have a _functional_ illness, one that may or may not involve any permanent, observable injury to the brain but which nevertheless changes how the brain functions. "That doesn't mean that people who have dizziness or these other symptoms where we cannot find a specific cause are making it up," says Terry Fife, MD, of the Barrow Neurological Institute at Dignity Health St. Joseph's Hospital and Medical Center in Phoenix. "They may be severely disabled by it. And it sometimes responds to medication." Usually, he says, those medications are antidepressants. Jon Stone, PhD, who specializes in functional disorders at the Center for Clinical Brain Sciences at the University of Edinburgh in the United Kingdom, says that in most cases the disorder is triggered by some kind of injury. "But then instead of recovering and getting well," he says, "the person gets stuck with the same symptoms persisting over time." If you or a loved one continues to suffer from the effects of a seemingly mild head injury for weeks or months, seek help from a doctor or clinic specializing in brain injuries and concussions. If no such center is located in your area, seek out a physical or occupational therapist who is willing to help you get moving, slowly, again. If you're struggling with feelings of depression or mental confusion, consider reaching out to a psychologist or other mental-health professional.Chronic traumatic encephalopathy, or CTE, is the medical term for the damage caused by these repeated concussions.Standard MRIs cannot detect it, so a diagnosis of CTE usually cannot be made with certainty until after a person has died.Only on autopsy can a pathologist see the damaged brain tissue. |
Perhaps unknown agents related to modern industrialization are the primary causes of breast cancer, while such influences as female hormones are secondary promoters of the disease.The designing of effective primary prevention for a disease generally depends on an understanding of the epidemiology of that disease. In the case of lung cancer, the discovery of the link with cigarette smoking allowed a widespread primary prevention program to be developed—the antismoking campaign. But the causes of many cancers are still unclear, meaning that preventive strategies must use secondary rather than primary prevention. Pap smears for early detection of cervical cancer, fecal occult blood testing and colonoscopy for early detection of colorectal cancer, and mammography for early detection of breast cancer are examples of secondary prevention. Multiple risk factors for breast cancer have been uncovered, including age greater than 65 years, a family history of breast cancer, atypical hyperplasia on breast biopsy, birth in North America or northern Europe, and genetic susceptibility related to the BRCA geno-type. Women with more years of ovulatory menstrual cycles have a greater risk, indicating a hormonal influence on the disease (American Cancer Society, 2011). However, only one-fourth of breast cancer cases can be accounted for by these risk factors. The differences between high and low age-adjusted breast cancer risk in the United States are small compared with the differences between such high-incidence nations as the United States and low-incidence (generally underdeveloped) nations. Perhaps unknown agents related to modern industrialization are the primary causes of breast cancer, while such influences as female hormones are secondary promoters of the disease.This association suggests that estrogen is an important cause or facilitator of breast cancer.Evidence linking dietary fat to cancer of the breast is inconsistent and weak, and further research is needed on the role of environmental carcinogens (American Cancer Society, 2011). |
To avoid using any of the complex and often inaccurate formulas and nomograms to calculate pneumothorax size, the British Thoracic Society (BTS) suggests the use of a simple method that works well in clinical practice.Bend a paper clip into an "L" (easier) or "R" (if you're talented) and tape it on the film as you would with a standard marker. _Foreign-Body Markers_
Makeshift markers for foreign-body localization or for entrance/exit wounds in penetrating trauma can be fashioned from BBs (metallic pellets for air rifles), lead markers for radiographs (especially the "O"), vitamin E capsules (for MRIs and CT scans, since they are visible but don't cause scatter), hypodermic needles, electrocardiogram (ECG) or electroencephalogram (EEG) leads, or paperclips. Paperclips are often most effective as markers if they are "unwrapped," so that only a single wire points to the wound. With plain radiographs, at least two views should be obtained to better localize any foreign body. When using foreign-body markers for a CT scan, unbending them also minimizes scatter at the end of the marker nearest the wound. One variation on the paperclip foreign-body marker has a "forward arrow" (Fig. 18-3) pointing to penetrating wounds that enter anterior to the anterior axillary line (the front of the body) and a "backward arrow" pointing to those that enter posterior to that line (back of the body). This helps with localizing the penetrating foreign body's (usually a bullet) trajectory. Of course, everyone has to know what the different markers mean. **FIG. 18-3. ** "Forward"/anterior and "backward"/posterior paper clip arrow markers. ### **ESTIMATING THE SIZE OF A PNEUMOTHORAX**
The treatment of pneumothoraces depends on their size. Rather than just inserting a chest tube (and using many resources), patients without dyspnea who are <50 years old with a first-time unilateral spontaneous pneumothorax that is "small" can be managed with observation. To avoid using any of the complex and often inaccurate formulas and nomograms to calculate pneumothorax size, the British Thoracic Society (BTS) suggests the use of a simple method that works well in clinical practice.The AID is an average of the distance between the parietal and visceral pleura at three points: the lung apex, and one-third and three-fourths of the way down the lung.Other recommendations state that the distance between the apex of the chest to the cupula of the lung should be <3 cm to be considered "small." |
A generalized depletion of lymphocyctes resulting in immunosuppression is a consistent feature of the disease.It is thought that immune stimulation may be an important trigger.Co-factors appear to be necessary for the development of the full clinical disease.The virus has also been linked to porcine dermatitis and nephropathy syndrome and to reproductive problems.However, age-related resistance and the protective effect of maternally-derived antibodies do not prevent clinical disease if immunosuppressive viruses such as infectious bursal disease virus or gallid herpesvirus 2 are present in the flock. The principal target cells are in the thymus and in the bone marrow. Chickens develop clinical signs at about two weeks of age. The mortality rate is usually about 10%. Subclinical infection in broilers from breeder flocks can adversely affect weight gains. A presumptive diagnosis is based on the clinical signs and gross lesions at postmortem. Laboratory confirmation relies on detection of viral antigen by immunocytochemical techniques. Viral DNA can be demonstrated in bone marrow and thymus by _in situ_ hybridization, by dot-blot hybridization or by PCR. Serum antibodies can be detected using virus neutralization, indirect immunofluorescence and ELISA. Commercial live vaccines are available and are designed to prevent vertical transmission of the virus from breeder hens. Vaccination does not prevent economic losses in broilers due to subclinical infection. ## Pig circovirus infection
Porcine circovirus 2 (PCV-2) is consistently isolated from piglets with post-weaning multi-systemic wasting syndrome (PMWS). Sero-epidemiological studies indicate that infection is widespread in pig populations worldwide. The virus has also been linked to porcine dermatitis and nephropathy syndrome and to reproductive problems. Co-factors appear to be necessary for the development of the full clinical disease. It is thought that immune stimulation may be an important trigger. A generalized depletion of lymphocyctes resulting in immunosuppression is a consistent feature of the disease.A definitive diagnosis requires demonstration of PCV-2 antigen or viral nucleic acid in association with lesions.Due to the widespread nature of the virus, control is largely directed towards eliminating the co-factors and triggers of the disease that may be present on individual farms: good husbandry, rapid removal of affected animals and the elimination of other infectious agents. |
Persistent symptoms of sinusitis may prevail after closure of a fistula.The acute phase is treated with antibacterial drugs, and ephedrine nasal drops to reduce nasal congestion, and improve drainage through the ostium.Careful examination of the fistula will often show it to be inflamed or filled with granulations and discharging pus.The buccal flap is trimmed back to a clean edge and, if possible, supported on bone, though often loss of the buccal alveolar plate at the time of extraction makes this difficult to achieve. The flap is sutured into place with mattress sutures and the bone deficiency in the palate covered with a dressing (Figure 10.4b). It has the advantage that the palatal flap is very thick and tough and is of sufficient length to cover the whole socket; however, patients report this flap as being extremely uncomfortable. Figure 10.5 Oroantral fistula. (a) Design of palatal flap for closure of the fistula showing the palatine artery in the flap and the excision of the fistula. (b) Closure showing rotation of the palatal flap and pack sutured over the area of bare bone. Infected Maxillary Sinus
Where the maxillary sinus is infected closure must not be attempted until this has settled. Acute Sinusitis
In acute sinusitis the patient complains of pain together with a feeling of weight in the cheek on the affected side, especially on bending down. Discharge from the maxillary sinus is often described as 'catarrh' on that side, especially in the morning. Examination often shows the cheek over the infected sinus to be red, there is tenderness on pressure in the canine fossa and pus may be seen and smelled in the nostril. Transillumination and radiographs show opacity and, if pus is present, a fluid level (Figure 10.6). Careful examination of the fistula will often show it to be inflamed or filled with granulations and discharging pus. The acute phase is treated with antibacterial drugs, and ephedrine nasal drops to reduce nasal congestion, and improve drainage through the ostium. Persistent symptoms of sinusitis may prevail after closure of a fistula.Intranasal antrostomy is rarely performed as this further disturbs the function of the ciliated epithelium of the sinus.Endoscopic sinus surgery may allow instrumentation to enable normal sinus function to resume.Figure 10.6 Opacity of right antrum. |
On the next day, March 19, Dr. Steven Stein took Allan back to the operating room for a second look at his wound.He remembers thinking at the time, "I'm going to make it, I'm not going to die after all."Removing the ventilator tube had a positive effect on Allan's morale.Still, since Allan was breathing on his own, Dr. Draper wrote, "will proceed with extubation."If it is not contained, it invades and spreads through tissues, penetrates and dissolves defending lymph nodes, breaks into the blood stream, and along this highway spreads throughout the entire body. The next morning, Dr. Lerner returned to the intensive care unit to make his rounds. He found Allan alert after his surgery, but still connected to the ventilator. A family of tubes emerged from his body. Working with Danny was a nephrologist who was managing the amounts and types of fluids that were going through all of Allan's intravenous catheters. They both knew that Allan would need immediate kidney dialysis. Not only were his kidneys not functioning, but the strep was causing rapid breakdown of tissue throughout his body. Under infectious attack, Allan's own body was consuming itself. All of these toxins and waste products of metabolism had to be removed if Allan was to recover. The kidney specialist inserted a large plastic catheter into one of the big veins near the collarbone to attach Allan to the kidney machine. At the bedside was the pulmonary specialist, David Draper. Unusual among doctors, he writes completely legible chart entries. On the day following Allan's surgery, he noted that the patient was "responding appropriately" to questions by gestures. (He could not talk due to the ventilator tube.) The "diffuse erythematous rash" was still present, along with signs of "multisystem failure." Still, since Allan was breathing on his own, Dr. Draper wrote, "will proceed with extubation." Removing the ventilator tube had a positive effect on Allan's morale. He remembers thinking at the time, "I'm going to make it, I'm not going to die after all." On the next day, March 19, Dr. Steven Stein took Allan back to the operating room for a second look at his wound.The second debridement, or cleanup surgery, was relatively minor compared with the first.Clearly visible on smears made from the tissue removed at surgery were the blue-staining chains and clumps of group A strep.Strep grew out of Allan's blood cultures as well.Allan spent over six weeks in the hospital.He required kidney dialysis treatments for most of that time. |
MEDICATIONS
DRUG(S)
* Due to the surgical incision's anatomical proximity to the anus, the perioperative use of antibiotics is suggested.* Castration of intact male dogs is also necessary, as non-castrated dogs have a recurrence rate 2.7 times greater than castrated dogs.May also reveal rectal sacculation or deviation. TREATMENT
* Due to the potential life-threatening sequelae of bladder entrapment or visceral strangulation, long-term delay of surgical intervention is not recommended. * Increasing dietary fiber and administering stool softeners, laxatives, and enemas as needed can help maintain stool consistency that minimizes clinical signs until surgical correction is instituted. SURGICAL INTERVENTION
* Surgery should be performed in a stable patient. Patients with urinary obstruction may require urethral catheterization and stabilization preoperatively to establish urinary voiding, as well as correct azotemia or electrolyte abnormalities. Surgery should not be delayed in patients with urinary or gastrointestinal obstruction. * Many different surgical procedures have been described. Herniorrhaphy using an elevated internal obturator muscle flap is the preferred technique for many. * Other techniques include superficial gluteal muscle transposition, semitendinosus muscle transposition, and anal splitting, as well as traditional anatomic reapposition. * If a paucity of tissue is encountered, a combination of techniques can be employed or biocompatible surgical implants such as porcine small intestinal submucosa or polypropylene mesh can be used. * Procedures such as colopexy, cystopexy, and vasopexy can also be used in an attempt to permanently maintain their respective abdominal organs within the abdominal cavity. * Castration of intact male dogs is also necessary, as non-castrated dogs have a recurrence rate 2.7 times greater than castrated dogs. MEDICATIONS
DRUG(S)
* Due to the surgical incision's anatomical proximity to the anus, the perioperative use of antibiotics is suggested.FOLLOW-UP
PREVENTION/AVOIDANCE
Castration of dogs is recommended to prevent this disease
POSSIBLE COMPLICATIONS
Surgical complications are frequent and include infection, fecal incontinence, rectal prolapse, recurrence, and sciatic nerve paralysis, as well as continued tenesmus. |
### **Metabolic Functions of Brown Adipose Tissue**
Although significant in density in newborns, adults do retain some metabolically active BAT deposits that respond to cold and sympathetic nervous system activation.This results in an increased ability of neutrophils and other leukocytes to adhere to the endothelium leading to increased local intravascular inflammatory processes.Adipose tissue-derived IL-6 accounts for approximately 30% of the circulating level of this pro-inflammatory cytokine. Visceral WAT secretes a higher percentage of the circulating IL-6 than subcutaneous WAT and this fact correlates with the negative effects of a pro-inflammatory status on the organs in obesity. As WAT density increases there is an associated increase in IL-6 secretion, which is correlated to an increase in the circulating levels of acute-phase proteins such as CRP. In addition to the negative effects of TNF-α on adiponectin, production of the cytokine also directly decreases insulin sensitivity by inhibiting insulin receptor signaling. TNF-α also decreases endothelial nitric oxide synthase (eNOS), resulting in decreased levels of NO as well as decreased expression of mitochondrial oxidative phosphorylation genes. This leads to increased oxidative stress, accumulation of reactive oxygen species (ROS), and increased endoplasmic reticulum stress. Lymph tissue is surrounded by pericapsular adipose tissue which increases in density with increasing obesity. This close association allows for 2-way paracrine interactions between the lymph and adipose tissues. One important interaction between lymph tissue and WAT involves leptin. Pro-inflammatory cytokine production and release from T cells is increased as a result of leptin action. Leptin effects on the vascular endothelium are also pro-inflammatory. Expression of adhesion molecules is increased by leptin binding its receptor on endothelial cells. This results in an increased ability of neutrophils and other leukocytes to adhere to the endothelium leading to increased local intravascular inflammatory processes. ### **Metabolic Functions of Brown Adipose Tissue**
Although significant in density in newborns, adults do retain some metabolically active BAT deposits that respond to cold and sympathetic nervous system activation.Signal transduction events triggered by adrenergic stimulation of BAT result in the activation of adenylate cyclase resulting in increased cAMP production and activation of PKA.PKA phosphorylates and activates HSL leading to increased release of fatty acids. |
Your fingers are made up of bones called the phalanges; each finger has three phalanges (phalanx is singular): the proximal phalanx, which joins your knuckle, the middle phalanx, and the distal phalanx, which is the bone in your fingertip.When you make a fist, you can see the ends of the metacarpals as your knuckles.The palm of your hand contains five bones called the metacarpals.The bones of the forearm attach at the elbow end of your humerus in four different spots:
Capitulum: Condyle (knob) that allows the radius to articulate with the humerus. Trochlea: Condyle on the humerus that lies next to the capitulum and allows the trochlear notch of the ulna to articulate with the humerus. Coronoid fossa: Depression in the humerus that accepts a projection of the ulna bone (called the coronoid process) when the elbow is bent. Olecranon fossa: Depression in the humerus that accepts a projection of the ulna (called the olecranon process) when the arm is extended. Fitting, isn't it? The radius is the bone on the thumb side of your forearm. When you turn your forearm so that your palm is facing backward, the radius crosses over the ulna so that the radius can stay on the thumb side of your arm. The radius is shorter but thicker than the ulna. The head of the radius looks like the head of a nail. The ulna is long and thin, and its head is at the opposite end of the bone compared with the head of the radius. Both the radius and ulna connect with the bones of the wrist. The wrist contains eight small, irregularly shaped bones called the carpal bones. The ligaments binding the carpal bones are very tight, but the numerous bones allow the wrist to flex easily. The eight carpal bones are the pisiform, triangular, lunate, scaphoid, trapezium, trapezoid, capitate, and hamate. The palm of your hand contains five bones called the metacarpals. When you make a fist, you can see the ends of the metacarpals as your knuckles. Your fingers are made up of bones called the phalanges; each finger has three phalanges (phalanx is singular): the proximal phalanx, which joins your knuckle, the middle phalanx, and the distal phalanx, which is the bone in your fingertip.So you may have eight fingers and two thumbs or ten fingers depending on how you look at it.Getting a leg up on your lower limbs
Your lower limb consists of the femur (thigh bone), the tibia and fibula of the leg, the bones of the ankle (tarsals), and the bones of the foot (metatarsals and phalanges; refer to Figure 4-4).The term phalanges refers to the finger bones and the toe bones. |
They and their receptors are commonly mutated or aberrantly expressed in certain cancers.Polypeptide growth factors are multifunctional molecules with more widespread actions and cellular sources than their names suggest.The most extreme form of short-distance signalling is contact-dependent (juxtacrine) signalling, where one cell responds to transmembrane proteins of an adjacent cell that bind to surface receptors in the responding cell membrane. Contact-dependent signalling also includes cellular responses to integrins on the cell surface binding to elements of the extracellular matrix. Juxtacrine signalling is important during development and in immune responses. These different types of intercellular signalling mechanism are illustrated in Figure 1.7. For further reading on cell signalling pathways, see Kierszenbaum and Tres (2012). Fig. 1.7 The different modes of cell–cell signalling. ##### Signalling molecules and their receptors
The majority of signalling molecules (ligands) are hydrophilic and so cannot cross the plasma membrane of a recipient cell to effect changes inside the cell unless they first bind to a plasma membrane receptor protein. Ligands are mainly proteins (usually glycoproteins), polypeptides or highly charged biogenic amines. They include: classic peptide hormones of the endocrine system; cytokines, which are mainly of haemopoietic cell origin and involved in inflammatory responses and tissue remodelling (e.g. the interferons, interleukins, tumour necrosis factor, leukaemia inhibitory factor); and polypeptide growth factors (e.g. the epidermal growth factor superfamily, nerve growth factor, platelet-derived growth factor, the fibroblast growth factor family, transforming growth factor beta and the insulin-like growth factors). Polypeptide growth factors are multifunctional molecules with more widespread actions and cellular sources than their names suggest. They and their receptors are commonly mutated or aberrantly expressed in certain cancers.The activated receptor acts as a transducer to generate intracellular signals, which are either small diffusible second messengers (e.g.calcium, cyclic adenosine monophosphate or the plasma membrane lipid-soluble diacylglycerol), or larger protein complexes that amplify and relay the signal to target control systems.Some signals are hydrophobic and able to cross the plasma membrane freely. |
ED evaluation includes a thorough history, physical examination, and 12-lead ECG.: Syncope is caused by a spectrum of disease entities.Use of this approach has been proved to be both safe and cost-effective; a prospective clinical trial demonstrated that 24% of patients can avoid hospitalization, with cost savings of $990 per patient.52
#### Syncope
Traditional Approach.: Not all patients with upper gastrointestinal bleeding do poorly, suggesting that outpatient management is possible if patients at high risk for further bleeding can be identified. Prognostic indicators include the patient's age, heart rate, systolic blood pressure, orthostatic changes in blood pressure or pulse, color of stool or emesis, anticoagulant use, and comorbid conditions.50 In an attempt to refine diagnostic accuracy, risk assessment, and disposition, several scoring systems have been developed. Some practitioners use hemodynamic stability, intensity of bleeding, and underlying health status as predictors of rebleeding, need for surgery, and mortality.51 Some use a period of observation with early endoscopy to identify the patient who can be discharged early. Patients found to have clean-based ulcers at endoscopy have a rebleeding rate of less than 2% and virtually never require urgent intervention for recurrent bleeding and can be released. Use of this approach has been proved to be both safe and cost-effective; a prospective clinical trial demonstrated that 24% of patients can avoid hospitalization, with cost savings of $990 per patient.52
#### Syncope
Traditional Approach. : Syncope is caused by a spectrum of disease entities. ED evaluation includes a thorough history, physical examination, and 12-lead ECG. |
The lysosomal membranes that separate those digestive enzymes from the rest of the cell contain relatively high concentrations of coenzyme Q10.The digestive enzymes within lysosomes function optimally at an acidic pH, meaning they require a permanent supply of protons.#### Lysosomal Function
Lysosomes are organelles within cells that are specialized for the digestion of cellular debris.### Function
Coenzyme Q10 is soluble in lipids (fats) and is found in virtually all cell membranes, as well as lipoprotein. The ability of the benzoquinone head group of coenzyme Q10 to accept and donate electrons is a critical feature in its biochemical functions. Coenzyme Q10 can exist in three oxidation states ( **Fig. 22.1** ): (1) the fully reduced ubiquinol form (CoQ10H2), (2) the radical semiquinone intermediate (CoQ10H·), and (3) the fully oxidized ubiquinone form (CoQ10). #### Mitochondrial ATP Synthesis
The conversion of energy from carbohydrates and fats to adenosine triphosphate (ATP), the form of energy used by cells, requires the presence of coenzyme Q10 in the inner mitochondrial membrane. As part of the mitochondrial electron transport chain, coenzyme Q10 accepts electrons from reducing equivalents generated during fatty acid and glucose metabolism and then transfers them to electron acceptors. At the same time, coenzyme Q10 transfers protons outside the inner mitochondrial membrane, creating a proton gradient across that membrane. The energy released when the protons flow back into the mitochondrial interior is used to form ATP. #### Lysosomal Function
Lysosomes are organelles within cells that are specialized for the digestion of cellular debris. The digestive enzymes within lysosomes function optimally at an acidic pH, meaning they require a permanent supply of protons. The lysosomal membranes that separate those digestive enzymes from the rest of the cell contain relatively high concentrations of coenzyme Q10.The presence of a significant amount of CoQ10H2 in cell membranes, along with enzymes that are capable of reducing oxidized CoQ10 back to CoQ10H2, supports the idea that CoQ10H2 is an important cellular antioxidant.CoQ10H2 has been found to inhibit lipid peroxidation when cell membranes and low-density lipoproteins (LDL) are exposed to oxidizing conditions outside the body (ex vivo). |
This may show calcification in the wall of the aneurysm.### Special investigations
* _Abdominal X-ray_.* _Infection._ An aneurysm may become infected or arise secondary to infection and consequent weakening of the arterial wall.Hence backache and sciatica are common in patients with large abdominal aortic aneurysms, and occlusion of the femoral vein is common with large femoral aneurysms.The aneurysm itself is both pulsatile and expansile. In smaller peripheral aneurysms, direct compression may empty the sac or diminish its size, and pressure on the artery proximal to the aneurysm may reduce its pulsation. If the feeding vessel has a narrow orifice, there may be a thrill and bruit, and if there is an arteriovenous communication, a machinery murmur is audible. ### Differential diagnosis
* A dilated, tortuous, atheromatous artery; commonly seen in the carotid and brachial arteries of elderly subjects. * A mass overlying or displacing the artery superficially. In the abdomen, for example, the palpable mass of a carcinoma of the pancreas may have a transmitted pulsation from the underlying aorta but will not be expansile, distinguishing it from an aneurysm. ### Complications
* _Rupture._ The likelihood of rupture increases as the diameter of the artery increases relative to its normal size. * _Thrombosis._ Thrombus lines the wall of the aneurysm, and may dislodge or extend to completely occlude the artery. This results in acute impairment of the distal circulation. * _Embolism._ Lining thrombus may detach and embolize to distal circulation, either as small emboli, resulting in digital ischaemia, or as a large mass of thrombus threatening the entire limb. * _Pressure._ Adjacent structures may be eroded or displaced. Hence backache and sciatica are common in patients with large abdominal aortic aneurysms, and occlusion of the femoral vein is common with large femoral aneurysms. * _Infection._ An aneurysm may become infected or arise secondary to infection and consequent weakening of the arterial wall. ### Special investigations
* _Abdominal X-ray_. This may show calcification in the wall of the aneurysm.* _Computed tomography (CT), magnetic resonance (MR) and ultrasound scanning_ may delineate the size and extent of an aneurysm and its relationship to other structures, and provide evidence of leakage.* _Angiography_ underestimates the size and extent of a true aneurysm, as it images the lumen, which is usually narrowed by thrombus. |
There is no evidence of optimal intervals of follow-up after oral leukoplakia treatment.Since surgical treatment does not preclude oral leukoplakia from transforming into cancer and does not avoid oral leukoplakia recurrences, a close follow-up must be carried out.Final removal of the remaining oral leukoplakia lesion should be carried out after histopathological examination of the biopsy has confirmed the suspected oral leukoplakia diagnosis and excluded the presence of carcinoma.2
Advantages of surgical excision of oral leukoplakia by high power lasers over conventional method (i.e. scalpel) include bleeding control and less bacteremia, among others, and this can be a particularly favorable technique when large areas of oral mucosa are affected, as wound healing occurs by secondary intention. Usually the laser of choice for oral leukoplakia treatment is the CO2 laser as it is efficient in cutting oral soft tissues and only produces superficial thermal damage, resulting from the intense energy absorption of this particular wavelength (10 600 nm) by its main chromophore, water, abundant in the oral mucosa.5 Whenever oral leukoplakia is distributed in areas that are difficult to access with the CO2 articulated arm, a laser with a flexible optical fiber, such as the diode laser (808–980 nm), can be used in a contact mode. In our protocol, surgery is performed with the CO2 laser (UM–L30; Union Medical Engineering Co, USA: continuous mode, 10 600 nm, 5–10 W; see Clinical cases 34.1 and 34.2) or diode laser (GaAlAs, ZAP softlase; ZAP Lasers Inc, USA: continuous mode, 808 nm, 2–3 W) under local anesthesia. Initially, lesions are outlined by vaporization, creating a margin that is 3 mm deep, with a distance of ~5 mm from the lesion border. Following lesion demarcation, the margin is lifted with forceps and excision is carried out by undercutting at a constant depth.6 Laser excision specimens are submitted to histopathological analysis. Since surgical treatment does not preclude oral leukoplakia from transforming into cancer and does not avoid oral leukoplakia recurrences, a close follow-up must be carried out. There is no evidence of optimal intervals of follow-up after oral leukoplakia treatment.* * *
## Clinical case 34.1 Oral leukoplakia
A 60-year-old white man, who reported being a heavy smoker for 46 years, presented to our clinic with a homogenous white plaque, with a smooth, constant texture throughout, affecting the left lateral/ventral tongue (Fig.34.1a). |
BabyBIG shortens hospital length of stay by a mean of 3.1 weeks and mechanical ventilation by a mean of 1.7 weeks.It was approved by the FDA for the treatment of infant botulism in October 2003.Special care should be taken with use of gastrointestinal clearance in infants with botulism. Because the source of toxin is outside the gastrointestinal tract in wound botulism, bowel decontamination is not indicated.39
Equine trivalent antitoxin contains antibodies to toxin types A, B, and E. It should be administered intravenously as soon as possible after appropriate laboratory specimens have been obtained. It neutralizes only circulating toxin and has no effect on bound toxin. Early administration prevents the progression of illness, decreases hospital length of stay, prevents respiratory failure, and shortens the duration of respiratory failure in patients with severe disease.46 Antitoxin can be obtained from the CDC or state health department. After skin testing for hypersensitivity, one 10-mL vial should be given intravenously. This dose results in circulating antitoxin levels capable of binding circulating toxin concentrations many times in excess of those reported in botulism patients. The serum half-life is 5 to 8 days. For these reasons, and contrary to the information in the package insert, only one vial of antitoxin is required. Repeated doses are unnecessary and may increase the risk of hypersensitivity reactions, which occur in approximately 9% of patients.39,41
Equine antitoxin is generally not recommended in infant botulism because efficacy has not been demonstrated and because of the risk of anaphylaxis to horse serum.48 A human botulism immune globulin (BabyBIG) is pooled plasma from immunized adults with high titers of antibodies to toxins A and B. It was approved by the FDA for the treatment of infant botulism in October 2003. BabyBIG shortens hospital length of stay by a mean of 3.1 weeks and mechanical ventilation by a mean of 1.7 weeks.Otherwise, the use of antibiotics should be limited to treatment of secondary infections (e.g., aspiration pneumonia) that may develop.Antibiotic treatment of both infant and wound botulism has no proven benefit. |
The most frequent presenting symptoms are mental changes in 36% of patients, headaches in 22% at onset and 50% during their illness, cerebellar signs in 31%, seizures in 20%, motor disabillity in 17%, and visual defects in 12% of patients [50, 51].They can also be seen in occular, spinal, and leptomeningeal site.A total of 75–80% of pilocytic astrocytomas, occur in the first two decades of life and are located in midline structures. Patients with low-grade astrocytomas have seizures as presenting symptoms in 60%, and headache in 38–46%. They may have years of seizures with nondiagnostic studies. The neurologic deficit depends on tumor location. Midline tumors are less likely to present with seizures, and more likely to present with symptoms and signs of increased intracranial pressure [48, 49]. ###### Oligodendroglioma
The frequency of oligodendrogliomas among gliomas ranges from 4 to 15%. The peak incidence is between 35 and 45 years of age. Oligodendrogliomas are commonly located in cortical or subcortical regions. These tumors arise from a subcortical location of the frontal, temporal, or parietal lobe and infiltrate the cortex. The most frequent initial symptoms that patients with oligodendrogliomas have are seizures in 50–75%, and headache in 9–48%. The duration of symptoms may be up to 20 years before tumor diagnosis [25]. ###### Primary Central Nervous System Lymphoma
Primary central nervous system lymphomas account for 1–4% of primary brain tumors. The incidence of these rare tumors has been increasing, in both the immunocompetent and in the immunocompromised populations. Three percent of AIDS patients will develop primary central nervous system lymphomas, either before or during the course of their illness. In immunocompetent patients, the peak incidence is in the sixth and seventh decades of life, and in AIDS patients, in the fourth decade of life. The majority of these tumors are cerebral in location and in 40% of patients they are bilateral. They can also be seen in occular, spinal, and leptomeningeal site. The most frequent presenting symptoms are mental changes in 36% of patients, headaches in 22% at onset and 50% during their illness, cerebellar signs in 31%, seizures in 20%, motor disabillity in 17%, and visual defects in 12% of patients [50, 51].There is a high female preponderance.Two-thirds of them are found in women.The tumors of pituitary region may present with symptoms and signs due either to endocrine dysfunction or to a mass effect on the pituitary and its surrounding neural and vascular structures.Mass effects include headache, hypopituitarism, diplopia, and any pattern of visual loss. |
Ectrodactyly (lobster claw deformity) is a longitudinal deficiency of the central digit(s) and metatarsal(s), producing a v- or U-shaped cleft and appearance likened to a "lobster claw" (Fig.Polysyndactyly is a combination of super-numeric digits with abnormal connection.Syndactyly may be isolated or may be a manifestation of syndromes like Apert syndrome and Poland syndrome.Congenital malformations of the extremities can be associated with other defects, syndromes, and skeletal dysplasias. Since limbs, joints, and digits are visible on ultrasound imaging and are well visualized on 3D sonography when surrounded by amniotic fluid, the value of fetal MRI as a diagnostic modality for the extremities could be questioned. However, there are a large number of cases with associated anomalies, including generalized fetal disease and CNS abnormalities. Studies demonstrating utility of MRI in evaluation of fetal extremities have emphasized the value of MRI to visualize these associated defects [38]. The differentiation between isolated and complex abnormalities is very important, as the latter may be associated with poor prognosis. ## 8.12 Abnormalities of the Extremities and Digits
Abnormalities of the digits can be classified into abnormalities by
1. Number, e.g., syndactyly, polydactyly, polysyndactyly, oligodactyly, ectrodactyly/clawhand phocomelia, sirenomelia
2. Alignment, e.g., clubfoot, rocker bottom foot, clubhand, clenched hand, camptodactyly, clinodactyly
3. Motion restriction, e.g., amniotic constriction bands, fetal akinesia/hypokinesia deformation sequence (FADS)
Polydactyly is the most common digit anomaly, more common in the hands than in the feet. It is usually isolated but can be associated with trisomy 13, Meckel-Gruber, Smith-Lemli-Opitz, and other anomalies. Syndactyly is an abnormal connection between adjacent digits (Fig. 8.15). The abnormal connection may be simple involving soft tissue only or complex with involvement of soft tissue and bone. Syndactyly may be isolated or may be a manifestation of syndromes like Apert syndrome and Poland syndrome. Polysyndactyly is a combination of super-numeric digits with abnormal connection. Ectrodactyly (lobster claw deformity) is a longitudinal deficiency of the central digit(s) and metatarsal(s), producing a v- or U-shaped cleft and appearance likened to a "lobster claw" (Fig.The delineation of the abnormality of the digits of the hand and foot is limited on fetal MRI but is superior on US [38] (Figs.8.15, 8.16, and 8.17).Fig.8.15
T2 HASTE images from two different patients demonstrating abnormality of the digits of the hands.Fetus (a) with findings of syndactyly. |
* * *
**Synoyms and inclusions**
* Crosti lymphoma
* * *
###### Pathophysiology
The relationship between PCFCL and both nodal systemic follicular and diffuse large B-cell lymphomas remains unclear.**Figure 140.38** Marginal zone primary cutaneous B-cell lymphoma: typical urticated dermal erythematous papules and plaques predominantly situated on the trunk. ###### Disease course and prognosis
The estimated 5-year survival is 98–100% [3, 4, 29]. ###### Investigations
Full staging investigations are indicated and a benign monoclonal paraproteinaemia may be present. In cases of plasmacytoma, skeletal surveys are required to exclude underlying myeloma. **Management** (see Table 140.12)
Radiotherapy (low dose) is the standard treatment option but some patients may be managed simply by observation in view of the excellent long-term prognosis [30, 31, 32]. Surgical excision may be used for isolated small lesions. The role of IFN-α has not been established but it may be effective either systemically or intralesionally [32]. In cases associated with _Borrelia burgdorferi_ , relevant antibiotic therapy can be appropriate [33] but the current evidence for antibiotic usage in _Borrelia_ -positive PCMZL is lacking [34]. In patients with multifocal disease chlorambucil may be appropriate [31, 32]. Cutaneous recurrences are common and can be treated in a similar manner. ### Follicle centre cell lymphoma
###### Definition and nomenclature
This is an indolent primary cutaneous B-cell lymphoma derived from follicle centre cells and consisting of a mixture of centrocytes (small/large cleaved cells) and centroblasts (larger non-cleaved cells). * * *
**Synoyms and inclusions**
* Crosti lymphoma
* * *
###### Pathophysiology
The relationship between PCFCL and both nodal systemic follicular and diffuse large B-cell lymphomas remains unclear.Microdissection of tumour cells has also confirmed the germinal centre cell origin of PCFCL Bcl-2-negative tumour cells, with no evidence of the t(14;18) translocation, also suggesting a different pathogenesis to nodal follicular lymphoma [1]. |
In his research, he found that 90 percent of fibromyalgia patients tested positive for influenza A antibodies.In one research paper, Allen Tyler, a medical doctor and naturopathic physician, reports that fibromyalgia was not seen before the 1918 flu pandemic.For the average person and even most doctors, influenza is largely ignored for most of the year, but between December and the end of February large numbers of workers and school children are home sick with the flu. In recent years with the introduction of new strains from China, there have been stronger flu outbreaks, but no major epidemic and as yet no pandemic. Most medical experts consider influenza, even in its most severe forms, an acute but short-lived infection without any complications or residual effects, however, bacterial secondary infections are common during the course of the illness. Middle ear infection, or otitis media, is a frequent complication of influenza infection in children and causes considerable discomfort for the child and has the potential to cause permanent hearing loss. Influenza virus can also invade the cells of the central nervous system or muscles and cause chronic infections in each called encephalopathy and myositis, respectively. Fibromyalgia, one of the new diseases and a condition similar to myositis (though more systemic in its effects, including insomnia, fatigue, and irritable bowel complaints) still defies medicine's attempts to assign a definitive cause. There are several theories about the cause of fibromyalgia, including a virally induced cause blamed mostly on herpes viruses. Though little attention is paid to a possible connection between fibromyalgia and influenza A, some experts suggest it is an overlooked syndrome. In one research paper, Allen Tyler, a medical doctor and naturopathic physician, reports that fibromyalgia was not seen before the 1918 flu pandemic. In his research, he found that 90 percent of fibromyalgia patients tested positive for influenza A antibodies.Though the conventional medical establishment has not endorsed this theory, Dr. Tyler is not alone in his thinking about chronic influenza infections. |
The actual number who used painkillers was probably higher, he observed, but not all patients would be willing to admit to a researcher on the phone that "they were using Uncle Charlie's oxycodone."Carey's team found that about a fifth of the patients acknowledged that they used opioid analgesics, mostly without a prescription, to treat their chronic back pain."If you went to a primary care doctor, you got lots of pain pills, and maybe a physical therapy referral," said Carey. (Historically, primary care doctors have prescribed about half of all opioid analgesics, and most initial MRIs. A patient who was scanned once had a 50 percent chance of having a second MRI in the same year.) A quarter of the patients underwent passive treatments like ultrasound, traction, and electrical stimulation, for which scientific evidence of effectiveness is weak or absent. If you went to a chiropractor, you would have spinal manipulation—and more than 25 percent of the patients Carey's team surveyed had been under chiropractic care, for an average of twenty-two office visits each. Although nearly half of the patients said they struggled with depression, very few had received any form of psychological counseling. More than half reported that their doctors had never recommended exercise (though some patients may have ignored such a prescription). Not one had been sent to intensive functional rehabilitation, combined with cognitive behavioral therapy, despite evidence that this approach produces superior results in chronic back pain patients. Carey's team found that about a fifth of the patients acknowledged that they used opioid analgesics, mostly without a prescription, to treat their chronic back pain. The actual number who used painkillers was probably higher, he observed, but not all patients would be willing to admit to a researcher on the phone that "they were using Uncle Charlie's oxycodone."Carey's team unearthed a great deal of valuable data.But for epidemiologists, the most unnerving statistic involved "occupational disability," a term that describes on-the-job injuries, work incapacity, and related loss of productivity. |
However, methods of pain relief for PDT are generally not particularly effective.In one study of 983 PDT treatments, 44% of patients required pain-reducing interventions [151].PDT treatment of warts appears to be associated with particular discomfort during treatment.There is also some evidence that lesions with the strongest fluorescence may be associated with more severe pain [151, 152, 153].In addition, given that both the MAL and Ameluz preparations contain arachis oil, PDT presents a potential, albeit unlikely, hazard for patients with extreme peanut allergy. Bullous pemphigoid has been reported in a single case localized to sites of PDT [147]. **Figure 22.20** Dermatitis arising at the photodynamic therapy (PDT) treatment site in a patient who had received multiple treatments with topical PDT to field areas. This was confirmed to be contact allergic in nature by patch testing. **Figure 22.21** Positive patch tests confirming contact allergy to a proprietary preparation of 5-aminolaevulinic acid (ALA). Contact allergy to both ALA and methyl aminolevulinate may uncommonly occur, particularly after multiple treatments, often to large areas. ### Pain
The main acute adverse effect of PDT is pain and most patients experience some discomfort, with severe pain in 16–20% [148, 149, 150]. The mechanism of PDT-induced pain is unknown although it occurs maximally in the first few minutes of treatment and is typically of a burning, prickling, stabbing nature. Pain usually rapidly subsides as soon as irradiation stops. It is not known if there are patient-dependent factors, such as genetic susceptibility, which influence pain. PDT treatment of large lesions and lesions on the head, neck and genital sites is more likely to be associated with significant pain. There is also some evidence that lesions with the strongest fluorescence may be associated with more severe pain [151, 152, 153]. PDT treatment of warts appears to be associated with particular discomfort during treatment. In one study of 983 PDT treatments, 44% of patients required pain-reducing interventions [151]. However, methods of pain relief for PDT are generally not particularly effective.Distracting the patient and engaging in conversation is anecdotally of some help, although this has not been formally studied.Pre-treatment with topical tetracaine gel, EMLA (eutectic mixture of local anaesthetics), capsaicin or morphine does not significantly alleviate pain [152, 155, 156, 157]. |
### WHERE FOUND
Corn can be grown nearly anywhere in North America, as long as it gets an abundance of moisture and sunlight.Between the husk and the kernels is the "silk"—fine strands of protective material that many herbalists believe is the plant's most medicinal portion.The plant has a thick stalk, large bright-green leaves, and "ears" of kernels covered by a multi-layered husk.Because black haw is time-consuming to prepare, many people opt for convenience and instead make tea using a tincture, available in health food stores. ### **CORN**
#### _Zea mays_
Native Americans introduced corn to the modern world, and it's perhaps their greatest contribution to our daily diets. However, corn is much more than a versatile and nutritious grain. It's also been widely used for its healing powers. Spanish explorers in the 16th century reported that Native Americans drank a beverage made from corn to treat problems with the kidneys and bladder. Historians have discovered that a corn-based beverage was used to treat dysentery and indigestion and to increase milk production in nursing mothers. Corn also was widely used by Native Americans to make poultices for skin ulcers, burns, and swelling, and corn oil was applied to ease eczema and dry skin. Even the cobs were used medicinally. Native Americans would burn the cobs, believing that the smoke would help relieve itching caused by insect bites and poison ivy. Many of the traditional uses for corn have been validated by modern research. Corn, especially the "silk," has been shown to have diuretic properties known to be helpful in treating high blood pressure and infections of the kidneys, bladder, and urinary tract. As though in testimony to Native American insight, many skin powders today contain cornstarch because it's been shown to help relieve skin conditions such as eczema. ### PHYSICAL CHARACTERISTICS
Most varieties of corn grow six to eight feet tall, depending on soil conditions and moisture. The plant has a thick stalk, large bright-green leaves, and "ears" of kernels covered by a multi-layered husk. Between the husk and the kernels is the "silk"—fine strands of protective material that many herbalists believe is the plant's most medicinal portion. ### WHERE FOUND
Corn can be grown nearly anywhere in North America, as long as it gets an abundance of moisture and sunlight.### METHODS OF USE
Corn is multi-talented, medicinally.For internal conditions, its silk can be used fresh or dried to make a tea.Steep two teaspoons, chopped, in a cup of boiling water.Externally, a corn poultice can soothe minor burns and other skin irritations.To prepare the poultice, mix dried cornmeal with milk and apply the paste to the affected areas. |
**grade of prostate cancer:** see _Gleason score_ and _Gleason Grade Group_.**glutathione S-transferase P (GSTP):** an important enzyme that helps prevent oxidative damage, which can lead to prostate cancer.See also _differentiation of prostate cancer cells_.Moderately well differentiated cells fall in the middle.**FSH:** follicle-stimulating hormone, made along with LH by the pituitary gland. FSH has its major effect on sperm production. **gene therapy:** one of the most exciting nonhormonal areas of treatment for advanced prostate cancer. Scientists are now able to program the body's DNA like a computer chip, sending it on a selective search-and-destroy mission targeted only at prostate cancer cells. Gene-targeted drugs are aimed at specific mutated genes or processes found in metastatic cancer. **genetic drift:** as a cancer progresses and its cells double over and over again, the DNA becomes less stable. The cancer develops new mutations; it becomes more aggressive. As the tumor progresses, well-differentiated cells deteriorate into poorly differentiated cells. This downslide is called genetic drift. **genetic susceptibility:** a complex of genetic factors that create a more hospitable atmosphere for cancer. **Gleason Grade Group (GG or GGG):** a simplified system of grading prostate cancer, developed by pathologist Jonathan Epstein at Johns Hopkins, that classifies Gleason scores into five groups based on the aggressive potential of the cancer cells. **Gleason score:** a way to classify the severity of cancer based on the way it looks under a microscope. Cells that are well differentiated are given a low grade (2, 3, 4); poorly differentiated cells are given a high grade (8, 9, 10). Moderately well differentiated cells fall in the middle. See also _differentiation of prostate cancer cells_. **glutathione S-transferase P (GSTP):** an important enzyme that helps prevent oxidative damage, which can lead to prostate cancer. **grade of prostate cancer:** see _Gleason score_ and _Gleason Grade Group_.**gynecomastia:** tenderness, pain, or swelling of the breasts in men.This is a common, easily treatable side effect of some forms of hormonal therapy for prostate cancer.**hedgehog pathway:** the path taken by a cancer in metastasis.Blocking this pathway may mean that we can prevent cancer from spreading. |
After six months, the test group showed significantly greater improvement in blood glucose levels and hemoglobin A1c than the control group.The test group ate a dairy-free diet, removed any additional foods that showed antibody reactions, and were given specific nutritional supplements.The control group ate their regular diabetic diet and followed their usual lifestyle program.Two things pop into my mind: increased vaccination requirements and the introduction of large amounts of genetically engineered corn, soy, cottonseed, and canola oil to our food supply. A considerable amount of research has shown a link between infant allergy to cow's milk and development of type 1 diabetes. In a similar vein, an epidemiological study in 40 countries found that the incidence of type 1 diabetes in children was highest in the countries with the highest consumption of dairy and other animal foods. In children who develop both celiac disease and type 1 diabetes, celiac disease often precedes or develops at the same time as the diabetes. (See sections on autoimmune disease and celiac disease in Chapter 14 for a more complete analysis of the gut-autoimmune connection.) Children eating a mainly vegetarian diet had a lowered incidence of type 2 diabetes. This needs to be explored more fully to determine what components of a vegetarian diet helped to protect these children. What can be supposed is that vegetarian diets have a higher level of polyphenols and fiber which both have protective properties. **Food Sensitivity and Diabetes. ** Looking for food sensitivities and allergies may help stabilize the blood sugar levels and reduce the need for medications in people with type 1 diabetes. A recent study done by Russell M. Jaffe, M.D., Ph.D., and colleagues looked at the role of diet and food intolerance in 26 adults with type 1 diabetes. The control group ate their regular diabetic diet and followed their usual lifestyle program. The test group ate a dairy-free diet, removed any additional foods that showed antibody reactions, and were given specific nutritional supplements. After six months, the test group showed significantly greater improvement in blood glucose levels and hemoglobin A1c than the control group.##### **Type 2 Diabetes**
Type 2 diabetes, which used to be called adult diabetes, is more specifically termed non-insulin-dependent diabetes mellitus (NIDDM).Type 2 diabetes occurs mainly in adults older than 45 and constitutes 90 to 95 percent of all diabetes cases.Type 2 diabetes was virtually unknown in children 30 years ago, but it is on the rise. |
This indicates that the denture is unstable and that there is poor resistance to horizontal forces.If the denture moves noticeably, then it is poorly adapted.The _adaptation_ of the dentures to the underlying tissues can be checked by applying gentle finger pressure to both sides of the denture and rotating it.If salivary flow has diminished, the mucosa will feel dry and this will affect comfort and denture retention. Areas of thin mucosa offer poor support for a denture and may not be resistant to trauma. Management strategies for this situation are discussed in Chapter 7. Areas of mobile, flabby tissue should be noted, as these will compromise retention and stability. The presence of pathological conditions should also be checked. Common pathological conditions associated with denture-wearing include chronic candidal infection and denture-induced hyperplasia. The clinician should also bear in mind the possibility of neoplasia. This may be associated with chronic irritation due to overextended areas of a denture (Fig 2-8). **Fig 2-7** Healthy ridges free of pathology:(a) maxilla and (b) mandible. **Fig 2-8** Squamous cell carcinoma associated with the overextended periphery of a complete denture. ### _Dentures in situ_
The dentures to be replaced should be inspected in situ, and the retention, stability and support should be assessed. Further features that should be checked include:
* adaptation of the bases to the underlying tissues
* positioning of the denture periphery relative to the sulcus and extension over the retromolar pads (lower denture) and tuberosities (upper denture)
* positioning of the postdam
* positioning of the teeth relative to the muscles of the lips, cheeks, tongue and the floor of mouth
* whether the centric relation coincides with the position of maximum intercuspation of the teeth
* the occluding vertical dimension and freeway space. The _adaptation_ of the dentures to the underlying tissues can be checked by applying gentle finger pressure to both sides of the denture and rotating it. If the denture moves noticeably, then it is poorly adapted. This indicates that the denture is unstable and that there is poor resistance to horizontal forces.The _peripheral extensions_ of the dentures should be checked and areas of overand underextension identified.If there is a space between the denture periphery and the sulcus on gentle manipulation of the tissues, then the periphery is underextended. |
If the disease results from a single large exposure to antigen, such as acute serum sickness, the lesions tend to resolve as a result of catabolism of the immune complexes.(C, Courtesy Dr. Richard Sontheimer, Department of Dermatology, University of Texas Southwestern Medical School, Dallas, Texas.)Loss of blood supply has led to cutaneous ulcerations.The important role of complement in the pathogenesis of the tissue injury is supported by the observations that complement proteins can be detected at the site of injury and, during the active phase of the disease, consumption of complement leads to a decrease in serum levels of C3. In fact, serum C3 levels can, in some cases, be used to monitor disease activity. Morphology
The principal morphologic manifestation of immune complex injury is acute vasculitis, associated with necrosis of the vessel wall and intense neutrophilic infiltration. The necrotic tissue and deposits of immune complexes, complement, and plasma protein appear as a smudgy eosinophilic area of tissue destruction, an appearance termed fibrinoid necrosis (see Fig. 2-15). When deposited in the kidney, the complexes can be seen on immunofluorescence microscopy as granular lumpy deposits of immunoglobulin and complement and on electron microscopy as electron-dense deposits along the glomerular basement membrane (see Figs. 6-31 and 6-32). Figure 6-31 Systemic sclerosis. A, Normal skin. B, Skin biopsy from a patient with systemic sclerosis. Note the extensive deposition of dense collagen in the dermis with virtual absence of appendages (e.g., hair follicles) and foci of inflammation (arrow). C, The extensive subcutaneous fibrosis has virtually immobilized the fingers, creating a clawlike flexion deformity. Loss of blood supply has led to cutaneous ulcerations. (C, Courtesy Dr. Richard Sontheimer, Department of Dermatology, University of Texas Southwestern Medical School, Dallas, Texas.) If the disease results from a single large exposure to antigen, such as acute serum sickness, the lesions tend to resolve as a result of catabolism of the immune complexes.This occurs in several diseases, such as systemic lupus erythematosus (SLE), which is associated with persistent antibody responses to autoantigens.In many diseases, the morphologic changes and other findings suggest immune complex deposition but the inciting antigens are unknown.Included in this category are membranous glomerulonephritis and several vasculitides. |
morphine)
Oxygen prn
Preparation for surgery to include the above and parenteral nutrition
## Postoperative
NBM status
NG tube to low–intermittent suction
Semi-Fowler's position
IV fluids with electrolyte replacement
Parenteral nutrition as needed
Antibiotic therapy
Blood transfusions as needed
Sedatives and opioids
CT, computed tomography; FBC, full blood count; IV, intravenous; NBM, nil by mouth; NG, nasogastric; prn, as needed. ## MULTIDISCIPLINARY CARE
Surgery is usually indicated to locate the cause, drain purulent fluid and repair the damage. Appropriate antibiotics are given to treat the infection. Patients with milder cases of peritonitis or those who are poor surgical risks may be managed non-surgically. Treatment consists of antibiotics, NG suction, analgesics and IV fluid administration. Patients who require surgery need preoperative preparation as previously described. ## NURSING MANAGEMENT: PERITONITIS
### Nursing assessment
Assessment of the patient's pain, including the location, is important and may help in determining the cause of peritonitis. The patient should be assessed for the presence and quality of bowel sounds, increasing abdominal distension, abdominal guarding, nausea, fever and manifestations of hypovolaemic shock. ### Nursing diagnoses
Nursing diagnoses for the patient with peritonitis include, but are not limited to, the following:
• acute pain _related to_ inflammation of the peritoneum and abdominal distension
• risk of deficient fluid volume _related to_ fluid shifts into the peritoneal cavity secondary to trauma, infection or ischaemia
• imbalanced nutrition: less than body requirements _related to_ anorexia, nausea and vomiting
• anxiety _related to_ uncertainty of cause or outcome of condition and pain.### Nursing implementation
The patient with peritonitis is extremely ill and needs skilled supportive care.An IV line is inserted to replace vascular fluids lost to the peritoneal cavity and as an access for antibiotic therapy.The patient is monitored for pain and response to analgesic therapy.The patient may be positioned with knees flexed to increase comfort. |
Other studies of Therapeutic Touch have shown that it can reduce pain, boost immune function, trigger the "relaxation response," accelerate wound healing, alleviate headaches, reduce fever and inflammation, and ease problems associated with autonomic nervous system dysfunction.The mice were evenly divided into three groups: one group was exposed to laying on of hands, another group was treated with artificial heat, while the control group wasn't touched. After 11 days, the wounds of the group exposed to the laying on of hands were significantly smaller than those in the other two groups. Human Studies: In a double-blind study involving 106 institutionalized elderly people, Therapeutic Touch was shown to be beneficial for treating anxiety. Before and after the patients received TT, their anxiety levels were measured using the Spielberger State Trait Anxiety Inventory. The patients were then divided into groups, with some receiving back rubs and some receiving Therapeutic Touch. The anxiety level of subjects who received Therapeutic Touch was found to be significantly lower than the anxiety levels of subjects who received a back rub without TT, leading researchers to conclude that Therapeutic Touch may enhance the quality of life for elderly, institutionalized populations. In another study, six volunteers suffering from tension headaches were randomly divided into treatment and placebo groups, with the treatment group receiving TT while the other group received placebo touch. Each volunteer was evaluated prior to intervention, immediately afterward, and four hours later. Ninety percent experienced sustained reduction in headache pain following their TT session, with 70% still reporting improvement of their pain symptoms four hours later. This was twice the average pain reduction experienced during the placebo touch sessions, leading researchers to conclude that TT has potential beyond the placebo effect in the treatment of tension headaches. Other studies of Therapeutic Touch have shown that it can reduce pain, boost immune function, trigger the "relaxation response," accelerate wound healing, alleviate headaches, reduce fever and inflammation, and ease problems associated with autonomic nervous system dysfunction.Acupuncture works on the principle that there is a network of energy channels, called meridians, throughout the body.Different organs are associated with different energy meridians, and health problems in various organs show up as disturbances of energy in the associated meridians. |
* There is no particular gender predilection, with the exception of supratentorial diffuse astrocytomas, for which afflicted males outnumber females 2:1.* Symptoms and signs associated with high-grade lesions are usually of short duration prior to tumor detection.These tumors share this specific molecular signature, diffuse growth pattern, and midline location; Diffuse Intrinsic Pontine Glioma (DIPG) is included in this group
* As a group, infiltrative astrocytomas represent the most frequent glial tumors afflicting adults, with glioblastoma accounting for the largest percentage of all malignant CNS tumors. * ◦ They are second to pilocytic astrocytoma in terms of frequency in the pediatric age group. * ◦ Approximately 10 % of all glioblastomas occur within the first two decades of life. * ◦ The vast majority are sporadic. Epidemiologic studies have shown that previously irradiated patients are at increased risk of subsequent astrocytoma development. * ◦ A minority are encountered in the context of various tumor syndromes, including Li-Fraumeni syndrome (p53), Turcot syndrome (APC), tuberous sclerosis (TSC1 and TSC2), neurofibromatosis type I (NF1), and multiple enchondromatosis (Ollier's disease). * Gliomatosis represents an aggressive, diffusely infiltrative growth pattern that involves broad regions of the CNS, typically more than two lobes with or without bilateral hemispheric involvement or extension into the posterior fossa and the spinal cord. It is no longer considered a distinct entity. ## 4.2 Clinical Features
* Symptoms and signs are related to tumor location and/or secondary mass effect, and many times ar e nonlocalizing. * Cerebral hemispheric lesions may result in seizures or focal motor deficits, whereas endocrinopathies can result from hypothalamic lesions. * Symptoms and signs associated with high-grade lesions are usually of short duration prior to tumor detection. * There is no particular gender predilection, with the exception of supratentorial diffuse astrocytomas, for which afflicted males outnumber females 2:1.* Pediatric epithelioid glioblastoma may present with acute massive hemorrhage and frequently shows leptomeningeal dissemination at time of diagnosis.* Diffuse intrinsic pontine glioma (DIPG) may present with cranial nerve deficits.These tumors occur at a mean age of 8 years, younger than for high-grade astrocytomas of other sites. |
58.8).All necessary planes are sutured with strong sutures both internal and external (Fig.Afterwards, at the base of the adipose pannus, over the previously marked line, a "U-shape tie or tutor" is placed piercing through the front side to the back side and from the back side to the front side, tying with a strong knot. The ties are made of twisted sterile bandages as if they were a suture, placing each "U" and separating them 10–15 cm from each other, over the line of the cut (Fig. 58.5). This step is meant to favor hemostasis by diminishing the bleeding due to compression, to reduce the thickness of the operating field and to be an invaluable guide in the operative plane. Once prepared this way, all the adipose tissue is resected in full thickness (Fig. 58.6). Fig. 58.5
Collocation of tutors marking the resection limit, representing a surgical guide and favoring hemostasis
Fig. 58.6
En bloc resection of adiposity in the inner thigh
On some occasions a technique must be resorted to that involves hitching up the highest area to be resected. That area will be pulled up and hung to an arc by means of chains (Fig. 58.7). This technique permits more accuracy in the surgical procedure; it helps reduce the bleeding considerably and avoids tiredness among assistants and surgical team. Fig. 58.7
"Hanging from the zenith" of abdominal pendulum areas. This position facilitates resection and minimizes interoperative bleeding
The incisions used in this procedure require cold scalpel, since high temperatures produced by electrosurgical devices weaken unnecessarily the tissue, producing lipolysis, large areas of necrosis after burn, and making postoperative recovery more complex with delay in the healing, secretions, and superimposed infections. All necessary planes are sutured with strong sutures both internal and external (Fig. 58.8).Fig.58.8
Final suture
The skin that was removed is defatted and stored in containers with saline solution and antibiotics.They are kept refrigerated for about 10–20 days.They should be labeled with date and patient's name.This practice is meant to treat necrosis cases or wound dehiscence by keeping it as a prospective biological dressing or full thickness graft. |
This angulation also does not cause superimposition.The lack of extreme vertical angulation reduces exposure to the thyroid gland and the lens of the eye because they no longer lay in the path of the primary beam.Vertical angulation is plus 10 degrees compared with plus 40 to 50 degrees with the bisecting technique discussed later.**
Lead is used for **collimation**. The interior of the generator, except for the rectangular window, is lined with lead. It stops all X-ray exit, except through the window. Generally, no X-rays will pass through lead. **Beam intensity** is related to the amount of X-ray energy hitting a square area of film. It varies with the inverse square of distance. That is, if the X-ray beam is twice the distance away, the intensity will fall to 1/4 (the inverse square of 2). Three times the distance yields 1/9 the intensity. Intensity is increased by:
* Increased mAs
* Increased kVp
* Decreased source-object distance
The following items increase **accuracy of image** **(sharpness, low distortion)** :
* Film parallel to object
* Film perpendicular to beam
* Film close to object (short object-film distance)
* Film far from generator (long source-object distance)
This last factor is due to the greater parallelism of the X-rays as the source is farther away. **Intensifying screens** are used mostly for extraoral films. The X-ray irradiates the film and "phosphors" on the screen that glow and emit light to the film. The effect is a better image with lower radiation. ## Periapical Radiographs: Angulation Techniques
The **paralleling technique** , when performed correctly, forms an image on the film with both linear and dimensional accuracy, providing a more accurate diagnosis. Vertical angulation is plus 10 degrees compared with plus 40 to 50 degrees with the bisecting technique discussed later. The lack of extreme vertical angulation reduces exposure to the thyroid gland and the lens of the eye because they no longer lay in the path of the primary beam. This angulation also does not cause superimposition.The degree of discomfort to the patient is increased as a result of the device used; however, it is necessary to ensure the film is parallel to the long axis of the tooth.Some state that this technique is more difficult to learn and takes longer to perform.The **bisecting technique** aligns the X-ray beam parallel to a line midway between the center of the tooth and the receptor film. |
As women, you and I can't afford to wait for the future to begin preventing osteoporosis.As a physician, I eagerly anticipate the development of these new therapies.In addition to the medications discussed in this chapter, there are many more being developed that have the potential to be useful in preventing or treating osteoporosis.### THE FUTURE
The future looks very bright.Researchers became interested in calcitriol as a possible treatment for osteoporosis when it was realized that there might be a connection between the declining production of calcitriol by the kidneys in older women and the development of osteoporosis. Older women with osteoporosis have been found to have lower levels of calcitriol than women who do not have osteoporosis. Low calcitriol levels would cause poor absorption of dietary calcium in the intestines leading to calcium deficiency. It is also now known that calcitriol can have a direct effect on the bone. Calcitriol may actually stimulate both the bone-forming osteoblasts as well as the bone-resorbing osteoclasts. As you can imagine, we would like to improve calcium absorption and stimulate the osteoblasts to make bone without stimulating the osteoclasts to cause bone loss. One additional concern is that because calcitriol is so potent, too much calcitriol can cause the level of calcium in the blood and urine to go too high, both of which can have serious consequences. The research is promising but far from complete. Studies have demonstrated that calcitriol can increase calcium absorption and increase the bone mass in the spine and forearm. High calcium levels in the blood and urine have developed in some patients, requiring investigators to carefully control the amount of calcium in the diet or lower the dose of calcitriol. It remains to be seen whether several years of calcitriol treatment can be safely undertaken and if protection from fractures results from this type of treatment. ### THE FUTURE
The future looks very bright. In addition to the medications discussed in this chapter, there are many more being developed that have the potential to be useful in preventing or treating osteoporosis. As a physician, I eagerly anticipate the development of these new therapies. As women, you and I can't afford to wait for the future to begin preventing osteoporosis.For women who cannot take estrogen, Evista, Actonel, or Fosamax are viable alternatives.Evista, Fosamax, Actonel, Calcimar, and Miacalcin can be used effectively to treat osteoporosis.Our options will almost certainly increase in the next decade, but we have effective options now—we just need to take advantage of them. |
A serious relapse can involve symptoms of damage to deep organs, including the heart, lungs, kidneys and brain, and if signs of organ damage are apparent, immunosuppressant drugs including hydroxychloroquine, cyclophosphamide and high-dose corticosteroids may be prescribed.Important symptoms include tiredness and fever, a facial rash, and muscle and joint aches.NSAIDs are warming and initially Clear Heat by Moving Stagnation. DMARDs and corticosteroids also have Warming properties. The long-term problem with these drugs is that they appear to Deplete Blood and Yin, as evidenced by blood disorders and heat symptoms. All the drugs used to treat RA are suppressive in nature. Arthritis in other autoimmune diseases
A few of the other multisystem autoimmune diseases involve the musculoskeletal system, and this is the reason for their alternative collective name of rheumatic autoimmune disease. These include systemic lupus erythematosus (SLE), systemic sclerosis and dermatomyositis. Systemic lupus erythematosus (SLE)
The most common of the multisystem conditions to affect the joints is systemic lupus erythematosus (SLE). SLE is a condition in which autoantibodies also cause damage to the kidneys, skin and hair follicles, the lining of the lungs and the heart, as well as the joints. It tends to affect women significantly more than men. The diagnosis can be confirmed by the presence of antinuclear antibodies (present in 95 percent of cases) and anti-double-stranded DNA antibodies (present in 60 percent of cases). The affected patient suffers from symptoms in episodes known as relapses. These can then subside (remit), leaving disease-free intervals. Important symptoms include tiredness and fever, a facial rash, and muscle and joint aches. A serious relapse can involve symptoms of damage to deep organs, including the heart, lungs, kidneys and brain, and if signs of organ damage are apparent, immunosuppressant drugs including hydroxychloroquine, cyclophosphamide and high-dose corticosteroids may be prescribed.More recently, the cytokine modulator drug rituximab, which targets the overactive B-lymphocytes in SLE, has shown some promising benefits.Ankylosing spondylitis
Ankylosing spondylitis is an inflammatory arthritis that primarily affects the vertebrae and sacroiliac joints.It tends to cluster in families, and its effects are more serious in men than women. |
Where symptoms occur, they most often arise in the days following injury with breathlessness, tachycardia, delirium and a petechial rash; this last observation is a useful sign in supporting the diagnosis clinically.In the majority of cases, it passes without symptoms.It can also occasionally occur as a complication of orthopaedic surgery.These drugs act to increase the conversion of naturally occurring plasminogen to plasmin, which has powerful fibrinolytic properties. An example is recombinant tissue plasminogen activator (rt-PA). Administration of these agents has transformed the acute management of stroke. The aim is to achieve reperfusion of the vascular bed as quickly as possible, to minimise the volume of tissue infarcted. Embolectomy can help to treat ischaemic limbs and can prevent the need for amputation. In this process, either a surgeon or an interventional radiologist can use a catheter to remove an embolus from an artery within a limb, restoring blood flow to the ischaemic area. Some patients take anticoagulant drugs such as warfarin, a coumarin-based medication, particularly if they have an irregular heart rhythm called atrial fibrillation. This has been shown to decrease the frequency of strokes caused by embolism of atrial thrombi into the cerebral arterial tree. Fig. 9.5 Bone marrow embolus (MP).As noted above, other than thrombus, there are a number of other objects that may embolise. These include atheroma, tumour, fat and bone marrow. Whatever the source, the consequence is obstruction of distal vessels with resultant partial or complete occlusion.In Fig. 9.5, a fragment of bone marrow has embolised to the pulmonary vasculature and become lodged in a pulmonary artery branch. The lumen of the vessel contains both fat cells of bone marrow (F) and the cellular haematopoietic elements (C).Bone marrow/fat embolism is a common complication of trauma, in particular following fracture of a long bone such as the femur. It can also occasionally occur as a complication of orthopaedic surgery. In the majority of cases, it passes without symptoms. Where symptoms occur, they most often arise in the days following injury with breathlessness, tachycardia, delirium and a petechial rash; this last observation is a useful sign in supporting the diagnosis clinically.Fig.9.6 Therapeutic embolisation (MP).Under certain circumstances, embolisation may be used as a therapeutic manoeuvre whereby embolic agents, of which there is a variety available, are introduced to the target vasculature through a catheter sited via a peripheral vessel.Indications for this include: to control abnormal bleeding (e.g. |
Cyanide elimination half-life is 2-3 hours.This reaction is catalysed by the enzyme rhodanese.The main mechanism is thought to involve hepatic transfer of sulfane sulfur to cyanide, forming thiocyanate, which is non-toxic and excreted in the urine.The metabolism of cyanide is not fully understood.It has a volume of distribution of 1.5 L/kg and is protein bound.**
# Risk Assessment
• Acute cyanide exposure, whether by ingestion of cyanide salts or inhalation of hydrogen cyanide gas, is potentially rapidly lethal. Death is likely to occur before arrival at hospital
• Patients who arrive alive at hospital following inhalational exposure survive with supportive care
• Although potentially lethal, amygdalin (cyanogenic-containing plant material, usually seeds) is rarely ingested in a dose sufficient to cause serious poisoning
• Chronic occupational intoxication leads to non-specific symptoms such as headache and fatigue
• **Children** : Unintentional ingestion of cyanide is potentially lethal. ## Toxic mechanism
Cyanide acts at several sites. It binds to the ferric ion (Fe3+) of cytochrome oxidase and inhibits oxidative metabolism, leading to lactic acidosis. It stimulates release of biogenic amines, resulting in pulmonary and coronary vasoconstriction. In the CNS, cyanide triggers neurotransmitter release, particularly N-methyl-D-aspartate (NMDA), which leads to seizures. ## Toxicokinetics
Cyanide is rapidly absorbed and taken up into cells. It has a volume of distribution of 1.5 L/kg and is protein bound. The metabolism of cyanide is not fully understood. The main mechanism is thought to involve hepatic transfer of sulfane sulfur to cyanide, forming thiocyanate, which is non-toxic and excreted in the urine. This reaction is catalysed by the enzyme rhodanese. Cyanide elimination half-life is 2-3 hours.• Progressive features include hypotension, bradycardia, confusion, tetany, drowsiness, respiratory depression and coma
• Delayed neurological toxicity, usually parkinsonism, may be observed weeks to months after surviving a serious acute poisoning. |
A 75-year-old male patient has been diagnosed with inoperable pancreatic cancer.64.Scrabble.4.Spelling bee competition.3.Reminiscence.2.Reality orientation.A mentally stimulating activity for older adults that uses remote memory is:
1.Identity versus role confusion
63.Ego integrity versus despair
4.Generativity versus stagnation
3.Industry versus inferiority
2.1.Exhibit more pain behaviors than younger people do. 3. Are easily addicted to pain medications. 4. Have a higher pain threshold. 59. A 70-year-old Jewish woman is scheduled for a bowel resection. The best time to schedule this procedure would be:
1. 8:00 AM Friday. 2. 8:00 AM Thursday. 3. 4:00 PM Friday. 4. 8:00 AM Saturday. 60. A thin, elderly woman of Asian heritage is at risk for:
1. Hashimoto disease. 2. Osteoporosis. 3. Herpes zoster. 4. Glaucoma. 61. An older adult woman with osteoarthritis of her hands is compliant with her medication regimen. She asks the nurse for suggestions to help relieve the morning stiffness of her hands. An appropriate response by the nurse is:
1. "Gentle range-of-motion exercises of your hands and fingers can be useful." 2. "Try using ice packs on your hands." 3. "Soak your hands in Epsom saltwater." 4. "Massage your hands with cortisone cream." 62. A 59-year-old woman visits her family doctor to request updates on her immunizations. She says the school district requires some additional immunizations because she is getting involved in a volunteer mentoring program for junior high school students. She states, "It's about time I started getting involved in my community!" The nurse realizes the patient is in which developmental stage? 1. Industry versus inferiority
2. Generativity versus stagnation
3. Ego integrity versus despair
4. Identity versus role confusion
63. A mentally stimulating activity for older adults that uses remote memory is:
1. Reality orientation. 2. Reminiscence. 3. Spelling bee competition. 4. Scrabble. 64. A 75-year-old male patient has been diagnosed with inoperable pancreatic cancer.The wife's behavior is best described as:
1.Situational depression.2.Denial.3.Anticipatory grieving.4.Social withdrawal.65.An older patient is complaining of inability to sleep through the night.He says he is restless and tosses and turns.Interventions that are helpful in promoting restful sleep include:
1.Wearing earplugs, exercising 1 hour before bedtime.2. |
**Excessive weight loss.Other symptoms include ovarian cysts, irregular or no periods, obesity, and excessive facial hair.** This is a common hormone disorder in young women.**_Underlying Medical Causes of Hair Loss Include:_**
**Polycystic ovary syndrome.: If things get really bad, there are cosmetics specially designed for people with eczema. Speak with your dermatologist. **HAIR LOSS**
* * *
_Just recently, Carly's noticed that lots of hair comes out when she brushes it in the morning. She's panicked that she'll be bald by the end of the year. "You're imagining things. Only men lose their hair," her roommate told her. But Carly's not convinced._
**What's going on? **
Although it is not that common, young women can suffer from hair loss. Recent research reveals that the number of young women affected seems to be on the rise. Hair is a big deal for most women, so the thought of saying good-bye to even one tangle, let alone clumps at a time, is enough to send many women into a national state of panic. **Why is this happening to me? **
There are a number of reasons that women can experience hair thinning. Alopecia areata is an autoimmune condition, which means that the body attacks itself, in this case causing hair to fall out over time, leaving round bald patches on the scalp. It is more common in people under the age of thirty and has been seen in young children. Another hair loss condition, called androgenetic alopecia, results from a combination of genetics and hormonal factors. In women, this form of alopecia typically causes the hair to thin over the front and top of the scalp. It usually affects women in their late twenties and early thirties but can affect younger women as well. Underlying medical problems (most of which this book discusses elsewhere) are probably the most common reason for hair loss among college women, the hair loss being just another symptom of a given problem. **_Underlying Medical Causes of Hair Loss Include:_**
**Polycystic ovary syndrome. ** This is a common hormone disorder in young women. Other symptoms include ovarian cysts, irregular or no periods, obesity, and excessive facial hair. **Excessive weight loss.Also, the Atkins and other low-carb diets can trigger hair loss.**Thyroid disorders.** Both an overactive and an underactive thyroid can result in hair loss.**Iron deficiency anemia.**
**Certain medications.** These include vitamins, antidepressants, and birth control pills.Don't freak out if you are on the pill. |
Cervicis: ligamentum nuchae.Origin
Thoracis: spinous processes of lower two thoracic vertebrae (T11–12) and upper two lumbar vertebrae (L1–2).Latin, spinalis, relating to the spine; thoracis, of the chest; cervicis, of the neck; capitis, of the head.Spinalis capitis usually blends with semispinalis capitis.Origin
Thoracis: blends with iliocostalis in lumbar region and is attached to transverse processes of lumbar vertebrae. Cervicis: transverse processes of upper four or five thoracic vertebrae (T1–5). Capitis: transverse processes of upper four or five thoracic vertebrae (T1–5). Articular processes of lower three or four cervical vertebrae (C4–7). Insertion
Thoracis: transverse processes of all thoracic vertebrae (T1–12). Area between tubercles and angles of lower nine or ten ribs. Cervicis: transverse processes of second to sixth cervical vertebrae (C2–6). Capitis: posterior margin of mastoid process of temporal bone. Nerve
Dorsal rami of spinal nerves C1–S1. Action
Extends and side flexes vertebral column. Draws ribs down for forceful inhalation (thoracis only). Extends and rotates head (capitis only). Basic functional movement
Keeps the back straight (with correct curvatures), therefore maintains posture. Sports that heavily utilize these muscles
All sports, especially swimming, gymnastics, and martial arts. Movements or injuries that may damage these muscles
Lifting without bending the knees, or holding the object too far in front of the body. Strengthen
Back extension
Swiss ball back extension
Seated back extension
Stretch
Back arch stretch
Lumbar flexion stretch
Postvertebral Muscles—Erector Spinae—Spinalis Portion
The spinalis is the most medial part of erector spinae and may be subdivided into thoracis, cervicis, and capitis portions. Spinalis capitis usually blends with semispinalis capitis. Latin, spinalis, relating to the spine; thoracis, of the chest; cervicis, of the neck; capitis, of the head. Origin
Thoracis: spinous processes of lower two thoracic vertebrae (T11–12) and upper two lumbar vertebrae (L1–2). Cervicis: ligamentum nuchae.Capitis: usually blends with semispinalis capitis.Insertion
Thoracis: spinous processes of upper eight thoracic vertebrae (T1–8).Cervicis: spinous process of C2 (axis).Capitis: with semispinalis capitis.Nerve
Dorsal rami of spinal nerves C2–L3.Action
Extends vertebral column.Helps maintain correct curvature of spine in standing and sitting positions.Extends head (capitis only). |
This results in increased viscosity of the blood.Chronic hypoxia also stimulates erythropoiesis, which causes polycythaemia.Chronic alveolar hypoxia causes vascular remodelling.In patients with severe COPD, 40% demonstrate cor pulmonale and the prognosis is poor.The patient benefits most when a diagnosis of pulmonary heart disease can be made early so therapy can be instituted.* Persons may have features of both asthma and COPD. _Source:_ Adapted from Barnes P, Drazen J, Rennard s et al., eds. Asthma and COPD: basic mechanisms and clinical management. London: Academic Press; 2002. ## CLASSIFICATION OF COPD
COPD should be considered in any person with an exposure to risk factors such as cigarette smoking and/or environmental or occupational pollutants and/or chronic cough and dyspnoea. The diagnosis is confirmed by spirometry. COPD can be classified as mild, moderate and severe (see Table 28-10). The FEV1/FEV <70% establishes the diagnosis of COPD and the severity of obstruction (as indicated by FEV1) determines the stage of COPD. The management of COPD is primarily based on the patient's symptoms, but the staging provides a general guideline for the type of interventions. TABLE 28-10 Classification of severity of COPD
FEV1, forced expiratory volume in 1 second; PaO2, partial pressure of oxygen, arterial; PaCO2, partial pressure of carbon dioxide, arterial. _Source:_ <http://copdx.org.au/guidelines/index.asp>, accessed 22 January 2011. ## COMPLICATIONS
### Cor pulmonale
_Cor pulmonale_ is hypertrophy of the right side of the heart, with or without heart failure, resulting from pulmonary hypertension. In COPD, pulmonary hypertension is caused primarily by constriction of the pulmonary vessels in response to alveolar hypoxia, with acidosis further potentiating the vasoconstriction (see Fig 28-10). Cor pulmonale is a late manifestation of chronic pulmonary heart disease. The patient benefits most when a diagnosis of pulmonary heart disease can be made early so therapy can be instituted. In patients with severe COPD, 40% demonstrate cor pulmonale and the prognosis is poor. Chronic alveolar hypoxia causes vascular remodelling. Chronic hypoxia also stimulates erythropoiesis, which causes polycythaemia. This results in increased viscosity of the blood.These patients would have increased pulmonary vascular resistance.Figure 28-10 Mechanisms involved in the pathophysiology of cor pulmonale secondary to chronic obstructive pulmonary disease.Normally the right ventricle and pulmonary circulatory system are low-pressure systems compared with the left ventricle and systemic circulation. |
If a child has undergone a painful procedure based on tissue damage (e.g., drilling into dentin) during a dental procedure, and this stimulus (unconditioned stimulus) is combined with other stimuli, such as the sound and the water spray of the drill (conditioned stimuli), it may result in pain perception when the conditioned stimuli are presented alone (Figure 9.1).Research has, however, shown that both neonates and small children are at least as pain sensible as the adult based on less developed functions that inhibit or modify pain responses in their CNS [3]. It has also been shown that children may be hypersensitive for pain when exposed to painful stimuli in early life, particularly children with chronic diseases and those who have been critically sick. Such children may show signs of hyperalgesia, either general or local, and their behavior may be affected by it. After a painful event or trauma, a pain memory frequently develops. The pain memory has two different properties, a physiologic and an affective component, both of which have long‐term effects. Evidence also exists that children who have experienced painful dental procedures, particularly at young ages, are more pain sensitive and display more behavioral problems during dental treatment than those who have not. The risk for this increases potentially if the painful stimuli have been experienced in combination with a feeling of lack of control. A typical clinical situation is when the child is being exposed to painful procedures under restraint (behavioral control), or when the painful stimulus comes suddenly without having prepared the child for it (informational control). Another reason that children may perceive pain in situations without tissue damage is based on classical conditioning. If a child has undergone a painful procedure based on tissue damage (e.g., drilling into dentin) during a dental procedure, and this stimulus (unconditioned stimulus) is combined with other stimuli, such as the sound and the water spray of the drill (conditioned stimuli), it may result in pain perception when the conditioned stimuli are presented alone (Figure 9.1).There are a number of additional factors known to affect the individual perception of pain, such as peripheral and central sensitization, biological variation, previous pain experience, context, and a variety of psychological factors.The complexity of pain perception can explain the lack of correspondence between the degree of noxious stimuli and the intensity of pain experience. |
proteins, lipids, and nucleic acids), but low levels of FR can act as second messengers regulating cell survival and proliferation pathways since many redox-sensitive enzymes are involved in programmed cell death (apoptosis).Phenolic compound | Structure | Source | DNAM | HM | PAPT
---|---|---|---|---|---
Lycopene | | Tomato | X | | X
Phloretin | | Apple | X | | X
Hesperidin | | Citrus | X | | X
Anacardic acid | | Cashew nut | | X | X
Resveratrol | | Grape | | X | X
Curcumin | | Curcumin | X | X | X
Coumaric acid | | Cinnamon | X | X | X
Genistein | | Soybean | X | X | X
EGCG | | Tea | X | X | X
Caffeic acid | | Coffee | X | X | X
DNAM, DNA methylation; HM, histone modifications; PAPT, pro-apoptosis. #### 6.4.1.2 Cell Proliferation
The antioxidant and antiproliferative activities of phenolic compounds (raw or pure) have been extensively studied in biological systems such as cell cultures, animal models, and clinical trials. The antiproliferative action of phenolic compounds is exerted at several levels including the anti-apoptotic and pro-necrotizing effects. Apoptosis involves a complex interaction between molecules with pro- and anti-apoptotic activity whose specific stimulation is dependent on the cell type and the stress challenge. Independent apoptosis involves caspase molecules such as apoptosis-inducing factor and endonuclease G, which when activated and translocated to the nucleus cause DNA breakdown. The pro-apoptotic effect of phenolic compounds referred in Table 6.2 is distributed in both caspase-mediated and non-mediated apoptosis. Also, FR-mediated alterations in cellular aerobic metabolism (glycolysis, oxidative phosphorylation) and/or the activity of NADPH oxidases can modify several biomolecules (e.g. proteins, lipids, and nucleic acids), but low levels of FR can act as second messengers regulating cell survival and proliferation pathways since many redox-sensitive enzymes are involved in programmed cell death (apoptosis).### 6.4.2 Antimicrobial, Antibacterial, and Antibiofilm
Many phenolic compounds have been tested in clinical and experimental studies as antimicrobial, antibacterial, and antibiofilm formation molecules against human pathogens. |
Science 300(5622):1155–1159PubMedCrossRef
de Geus-Oei LF, van der Heijden HF, Visser EP, Hermsen R, van Hoorn BA, Timmer-Bonte JN, Willemsen AT, Pruim J, Corstens FH, Krabbe PF, Oyen WJ (2007) Chemotherapy response evaluation with 18F-FDG PET in patients with non-small cell lung cancer.In this patient, assessment of iodine uptake by DECT was not feasible as the pulmonary nodule was located outside the field of view of the B detector
## 6 Conclusion
The differentiation of iodinated contrast media by DECT may be a potential surrogate marker for regional blood volume and thus angiogenesis. In pulmonary imaging, this is of potential value for non-invasive characterization of pulmonary nodules and response assessment in lung cancer. Future studies have to evaluate whether the assessment of iodine as a surrogate for angiogenesis can be used for response assessment especially in patients undergoing targeted therapy. Furthermore, the technique might be used to differentiate viable tumor tissue from postobstructive atelectasis or fibrotic scar. References
Chae EJ, Song JW, Seo JB, Krauss B, Jang YM, Song KS (2008) Clinical utility of dual-energy CT in the evaluation of solitary pulmonary nodules: initial experience. Radiology 249(2):671–681PubMedCrossRef
Dewan NA, Reeb SD, Gupta NC, Gobar LS, Scott WJ (1995) PET-FDG imaging and transthoracic needle lung aspiration biopsy in evaluation of pulmonary lesions. A comparative risk-benefit analysis. Chest 108(2):441–446PubMedCrossRef
Garcia-Barros M, Paris F, Cordon-Cardo C, Lyden D, Rafii S, Haimovitz-Friedman A, Fuks Z, Kolesnick R (2003) Tumor response to radiotherapy regulated by endothelial cell apoptosis. Science 300(5622):1155–1159PubMedCrossRef
de Geus-Oei LF, van der Heijden HF, Visser EP, Hermsen R, van Hoorn BA, Timmer-Bonte JN, Willemsen AT, Pruim J, Corstens FH, Krabbe PF, Oyen WJ (2007) Chemotherapy response evaluation with 18F-FDG PET in patients with non-small cell lung cancer.Ann Oncol 19(2):348–352PubMedCrossRef
Guckel C, Schnabel K, Deimling M, Steinbrich W (1996) Solitary pulmonary nodules: MR evaluation of enhancement patterns with contrast-enhanced dynamic snapshot gradient-echo imaging. |
regular rising time, morning exposure to sunlight, timing of meals and medications).careful timing of the use of stimulants and light exposure) and the establishment of more conducive day and night routines (e.g.CBT-I can also be helpful in realigning sleep patterns to the 24-hour cycle, a practice also known as 'entrainment', by encouraging good sleep hygiene (e.g.It is most commonly seen in people who are totally blind. The daily delay in sleep onset causes the patient to gradually 'cycle around the clock', sometimes sleeping during the day and, at other times of the month, sleeping at night. In extreme cases, as may be observed in psychosis, day–night reversal may occur, where the person has a strong propensity to sleep during the day and be awake during the night. Misaligned circadian patterns of sleep are a prominent symptom of psychotic disorders (Mansour et al., 2005; Harvey, 2008), especially delayed sleep phase, followed by irregular sleep–wake disorder, and non-24-hour sleep–wake disorders. Common treatment approaches for delayed sleep phase include the use of oral melatonin in the evening and exposure to bright light in the morning, with either sunlight or artificial bright light therapy (see Morgenthaler et al., 2007). Light sends a signal to the brain to stop producing melatonin and to produce alertness-promoting hormones, such as cortisol. Delayed or irregular sleep phase disorders can therefore be helped with exposure to bright light in the morning, as this switches melatonin production off. By contrast, evening's darkness tells the brain to produce melatonin and therefore promotes sedation. This can be artificially induced with the use of melatonin tablets. Artificial light at night can delay melatonin production and the onset of sleep, intensifying a delayed sleep phase pattern (in the case of treating advanced sleep phase, evening bright light is beneficial (e.g. Lack and Wright, 1993), but in the case of delayed sleep phase it is unhelpful). CBT-I can also be helpful in realigning sleep patterns to the 24-hour cycle, a practice also known as 'entrainment', by encouraging good sleep hygiene (e.g. careful timing of the use of stimulants and light exposure) and the establishment of more conducive day and night routines (e.g. regular rising time, morning exposure to sunlight, timing of meals and medications).They often occur during the second half of the sleep period (American Psychiatric Association, 2013).Usually, the person having a nightmare suddenly wakes from REM sleep oriented and alert, and has a clear, detailed memory of the dream content.The onset of sleep following a nightmare is often prolonged owing to the cognitive and physiological arousal that it produces. |
Whereas, glutamate is an acidic and hydrophilic amino acid, leucine is hydrophobic.The change converts a glutamic acid codon (GAG) to a valine codon (GTG).The mutation causing sickle cell anemia is a single nucleotide substitution (A-T) in the codon for amino acid 6.** creation of an abnormal ratio of α-chains to β-chains
**C.** prevention of assembly of β-chains with α-chains
**D.** prevention of β-chain from binding heme
**E.** production of a truncated β-chain
**Answer A:** HbS is the form of hemoglobin that results due to a missense mutation in the β _-globin_ gene that causes sickle cell anemia. The mutation causing sickle cell anemia is a single nucleotide substitution (A-T) in the codon for amino acid 6. The change converts a glutamic acid codon (GAG) to a valine codon (GTG). Whereas, glutamate is an acidic and hydrophilic amino acid, leucine is hydrophobic. The presentation of this hydrophilic amino acid on the surface of the hemoglobin protein when in the deoxy state allows the proteins to aggregate via hydrophobic interactions. This aggregation leads to deformation of the erythrocyte, making it relatively inflexible and unable to traverse the capillary beds. **19. ** Which of the following types of bonds is primarily responsible for the aberrant aggregation of deoxy HbS molecules resulting from the glutamate to valine mutation in the sixth position of the β-globin chain? **A. ** amide
**B. ** covalent
**C.** disulfide
**D.** hydrophobic
**E.** ionic
**Answer D:** HbS is the form of hemoglobin that results due to a missense mutation in the β _-globin_ gene that causes sickle cell anemia. The mutation causing sickle cell anemia is a single nucleotide substitution (A-T) in the codon for amino acid 6. The change converts a glutamic acid codon (GAG) to a valine codon (GTG). Whereas, glutamate is an acidic and hydrophilic amino acid, leucine is hydrophobic.This aggregation leads to deformation of the erythrocyte making it relatively inflexible and unable to traverse the capillary beds.**20.** During an experiment on hemoglobin function, knockout mice that are unable to synthesize globin proteins are created.Absence of which of the following globin proteins is most likely to be incompatible with life in these mice?**A.** α
**B. |
The Consolidated Standards of Reporting Trials (CONSORT) checklist developed by the CONSORT group ([www.consort-statement.org) provides a solid basis for conducting and reporting randomized controlled trials (RCT).[24] reported the reduced contents of active ingredients echinacoside or cichoric acid in Echinacea products marketed in the United States. Lack of quality control/quality assurance requirements for the dietary ingredient suppliers have been indicated as the cause of adulteration, substitution or low quality of materials being incorporated in the dietary herbal supplements [25]. In addition to this, various herb-herb interactions (incompatibilities and counteracting abilities) have been documented [26]. Also, interactions of herbal medicines with drugs such as warfarin, aspirin, midazolam, digoxin and irinotecan have been reported [27, 28]. Hence, understanding these pitfalls and taking remedial measures are crucial while integrating herbal medicine into evidence-based clinical practice. Preclinical and pharmacological assessment of herbal medicines conducted using animal model systems might sometimes not prove useful in humans as biological responses may not be species transferable. It is possible to have a positive effect of a drug/active ingredient in animals whereas it may be completely inactive in humans. Testing the toxicity levels and manifestations of a certain drug in animal models is particularly useful while assessing drug safety issues. Moreover, testing the presence of heavy metals such as arsenic, lead, copper and mercury in herbal ingredients is necessary to avoid possible adverse effects while conducting trials in humans [22]. The Consolidated Standards of Reporting Trials (CONSORT) checklist developed by the CONSORT group ([www.consort-statement.org) provides a solid basis for conducting and reporting randomized controlled trials (RCT).However at times, implementing herbal medicinal trials pose problems due to their distinguishable organoleptic properties compared to placebo which could have a confounding effect on the efficacy of the treatment.In such cases, strategies adopted to control this possible bias should be well documented so as to facilitate replication of treatments by other investigators. |
**B.An answer for part_ **B** _follows_.For part_ **C** , _you can describe embryonic induction of the notochord by the dorsal lip of the blastopore.**Question 3**
_For part_ **A** , _describe each stage in the development of a frog embryo.Note that in the answer to the first question, the two parts (compare and contrast) are clearly indicated_.This spike of LH in the middle of the cycle causes ovulation, the release of the egg (actually the secondary oocyte) from the follicle. After ovulation, the follicle, now called the corpus luteum, continues to produce estrogen and progesterone. These hormones regulate the menstrual cycle by stimulating the thickening of the endometrium (the inner lining of the uterus). In response to continued high levels of progesterone, a negative feedback response causes the anterior pituitary to stop production of LH and FSH. As a result, the follicle stops producing estrogen and progesterone, and the endometrium is sloughed off. If the egg becomes fertilized and implants into the endometrium, cells from the developing embryo secrete human chorionic gonadotropin (HCG), which induces the corpus luteum to continue production of progesterone, which, in turn, maintains the endometrium. _Both questions 1 and 2 require a discussion of the reproductive processes, but their focuses are different. In answering the first question, you need to state the similarities and differences (compare and contrast) between males and females. Details of hormone regulation alone would not address the question. In answering the second question, however, the details of hormone regulation (and feedback loops) are exactly what you need to discuss (but only for females). Note that in the answer to the first question, the two parts (compare and contrast) are clearly indicated_. **Question 3**
_For part_ **A** , _describe each stage in the development of a frog embryo. For part_ **C** , _you can describe embryonic induction of the notochord by the dorsal lip of the blastopore. An answer for part_ **B** _follows_. **B.This causes a major rearrangement of cells.Two layers of cells result, the ectoderm and the endoderm, followed by a third layer between them, the mesoderm.These three layers are responsible for the arrangement and development of various organs throughout the body. |
In the wild, few, if any, animals are obese.With rare exception (the presence of a disease like thyroid disease), obese pets are made that way, not born that way.Many doctors think these estimates are quite low judging by the number of obese pets they see every day in practice.Ear mites can be treated with oral or injectable ivermectin or topical drops (which must be administered for 4 weeks along with some type of body treatment, usually a flea spray, to effectively break the mite life cycle and kill the mites). # OBESITY
_Principal Natural Treatments_
Natural Diet
_Other Natural Treatments_
Chromium, carnitine, boron, cayenne, ginger, mustard, hydroxycitric acid, chitosan, Coenzyme Q10
**O** besity, defined as an increase in body weight of at least 15% above what would be normal for the size of the pet, is the most common nutritional disease in pets. As with people, obesity results from an excess caloric intake relative to the expenditure of energy. Many owners question a link between spaying or neutering the pet and obesity. Reduction of the male and female hormones (as a result of neutering or spaying, respectively), does not cause obesity per se. However, if the metabolic rate decreases as a result of neutering or spaying, and if the intake of calories is not adjusted, obesity can result. Because diseases such as hypothyroidism and diabetes mellitus can be associated with obesity, obese pets should be screened for these disorders prior to treatment. ## PRINCIPAL NATURAL TREATMENTS
### Natural Diet
Obesity is a severe and debilitating illness. It is the most common nutritional disease in pets and people; estimates suggest that up to 45% of dogs and up to 13% of cats are obese. Many doctors think these estimates are quite low judging by the number of obese pets they see every day in practice. With rare exception (the presence of a disease like thyroid disease), obese pets are made that way, not born that way. In the wild, few, if any, animals are obese.How can you decide if your pet fits the definition of "obese?"Current medical opinion states that a pet is obese if it weighs 15% or more over its ideal weight.Pets that weigh 1 to 14% over their ideal weight are considered "overweight" but not yet "obese."While pet owners often use the pet's actual weight to gauge obesity, it is probably more accurate to use a body composition score. |
Physical exercise (e.g.Good nutrition is important.If worsening bronchospasm or severe drug side effects occur, patients should seek medical attention.Patients need to understand the importance of continuing the medication even when symptoms are not present.This information will be valuable in helping the healthcare provider to adjust the medication.When the acute attack subsides, the patient should be encouraged to rest in a quiet, calm environment. When the patient has recovered from exhaustion, the nurse can obtain information about the patient's health history and pattern of asthma. If family members are present, they may be able to provide information about the patient's health history. A thorough physical assessment should be completed (see Table 28-6). This information is important in planning an individualised nursing care plan for the patient. Well-thought-out written plans involving the patient and significant others increase the patient's knowledge and control of the situation and may help improve confidence and compliance. #### Ambulatory and community care
It is important to remember that asthma is potentially controllable and that every effort should be made to keep the patient free of symptoms. Patients with asthma usually take several medications with different routes of administration and time frames for dosage (e.g. tapering corticosteroid schedules, using several different inhalers with different indications). The drug regimen itself can be confusing and complex. Patients must learn about the numerous medications and develop self-management strategies. The patient and healthcare professional need to monitor the patient's responsiveness to medication. It is easy to undermedicate or overmedicate a patient with asthma unless careful monitoring is ongoing. Some patients may benefit from keeping a diary to record medication use, the presence of wheezing or coughing, the PEFR, drug side effects and their activity level. This information will be valuable in helping the healthcare provider to adjust the medication. Patients need to understand the importance of continuing the medication even when symptoms are not present. If worsening bronchospasm or severe drug side effects occur, patients should seek medical attention. Good nutrition is important. Physical exercise (e.g.If dyspnoea occurs on exertion, it can often be prevented with the use of a β2-adrenergic agonist MDI, sodium cromoglycate or nedocromil.Sleep that is uninterrupted by asthma symptoms is important.If patients wake up because of asthma symptoms, their asthma is not under sufficient control and their therapeutic plan should be re-evaluated. |
• The prevalence of FI in frail older people is equal to or greater in men than women.1 This predominance of older men over women with FI is most striking among nursing home residents.1
• The prevalence of FI varies dramatically between institutions in nursing home studies.1
• FI coexists with urinary incontinence in the majority of frail older people.93
• Aside from age, the following are primary risk factors for FI in older people1:
• Loose stool/chronic diarrhea
• Impaired mobility
• Dementia (up to 27% of people with dementia living at home are affected)
• Stroke (and any neurologic disease)
• Urinary incontinence
• Higher parity (women)
• Diabetes
• Depression
• Higher body mass index
• Cigarette smoking
• Chronic medical conditions and/or poor general health
• Fecal loading and constipation are clinically linked to FI, but there is little epidemiologic work assessing this association. • Physicians and nurses in primary care, acute hospital, and long-term health care settings do not have a high awareness of FI in older people.1
• Within nursing homes, there is a low rate of referral by nursing staff of residents to either primary care physicians or continence nurse specialists for further assessment of FI,1 and there is a tendency toward passive management (e.g., use of pads only without further evaluation).1 Fecal loading is often present in older care home residents with FI.1
• Older people may be reluctant to volunteer the symptoms of FI to their health care provider1 for social or cultural reasons or because of a popular misperception that the condition is part of the aging process and therefore "nothing can be done about it."• Inquiry about FI should be systematic and include stool consistency, severity of FI, and impact on activities of daily living and quality of life.• Health care providers should be sensitive to cultural and social barriers discouraging patients from talking about the condition. |
It is not possible to identify the amount of blood lost, because much of it is swallowed, and therefore hypovolaemic assessment and resuscitation are clinical.## How much has the child bled?Secondary haemorrhage is within 28 days of the initial surgery and can be as a result of vessel ties coming loose, sloughing, or infection of the tissue overlying the tonsillar bed.There has been no obvious blood loss from the mouth, but the child has vomited once, is occasionally spitting out blood, and is not eating, and the nursing staff are concerned, because he looks very tired. ## Is the child bleeding? Although there is no obvious blood loss from the mouth, significant blood can still be lost and swallowed over several hours following a tonsillectomy. The child has vomited on one occasion, and this was reported as containing blood. This child is not eating and complains of feeling sick, and the parents have noticed that he seems to be constantly swallowing which suggests there may be significant bleeding and swallowing of blood. Oxygen should be administered but may not be tolerated. ## When and where is the bleeding? Primary haemorrhage is usually within the first 6 hours post-operatively but can present immediately in the recovery area. The bleeding is usually as a result of venous or capillary oozing from the tonsillar bed. Secondary haemorrhage is within 28 days of the initial surgery and can be as a result of vessel ties coming loose, sloughing, or infection of the tissue overlying the tonsillar bed. ## How much has the child bled? It is not possible to identify the amount of blood lost, because much of it is swallowed, and therefore hypovolaemic assessment and resuscitation are clinical.Late indicators of significant bleeding and hypovolaemia include:
◆ BP: hypotension is a late sign
◆ Reduced conscious level/GCS: altered consciousness level is a late sign.Severe indicators of massive blood loss and hypovolaemia include:
◆ Bradycardia: a reduced HR in the presence of severe hypovolaemia is a preterminal sign requiring immediate treatment. |
(E)-β-Caryophyllene: (E)-β-caryophyllene or (E)-BCP is a fully FDA-approved dietary cannabinoid that activates CB2 receptor sites and initiates potent anti-inflammatory actions and protection from oxidative stress, both commonly associated factors in pathogen-based inflammations.### Suggested Blessing
May you realize that your genitals are essentially good, healthy, natural, beautiful, and this organ is a necessity for all of life. ### Suggested Affirmation
I am an adult and I celebrate my sexuality freely and with harm to none. ## Let Food Be Thy Medicine
### Coconut * Spices containing (E)-β-Caryophyllene
Coconut: In a laboratory study in Iceland, researchers discovered that medium-chain fatty acids, especially capric acid (C10H20O2), worked effectively in killing all strains of _Neisseria gonorrhea_. Another laboratory study from the island determined how well medium-chain fatty acids destroy or inhibit the growth of other groups of bacteria. Both lauric acid and capric acid showed strong antibacterial abilities. Again, researchers demonstrated another aspect of lauric and capric acids' broad antimicrobial properties in the laboratory—this time against a fungus associated with yeast infections. Lauric acid and capric acid were also found to effectively inactivate chlamydia in the laboratory. This suggests that these two fatty acids, found in relatively high concentrations in coconut milk and coconut oil, may play a role in the prevention of this particular bacterial infection as well. (E)-β-Caryophyllene: (E)-β-caryophyllene or (E)-BCP is a fully FDA-approved dietary cannabinoid that activates CB2 receptor sites and initiates potent anti-inflammatory actions and protection from oxidative stress, both commonly associated factors in pathogen-based inflammations.People with weakened immune systems, chronic open wounds, surgical implants, and exposure to the bacteria are its most likely victims.The bacteria are spread via close skin-to-skin contact, contaminated items and surfaces, crowded living conditions, and poor hygiene.Many of the MRSA infections are acquired in hospitals, nursing homes, and prisons. |
ASP
**SODIUM** **_p_ -** **TOLUENE-SULFOCHLORAMINE •** Chloramine-T. Water-purifying additive and a deodorant used to remove weed odor in cheese.GRAS.Poorly absorbed by the bowel.It is an antidote for cyanide poisoning and has been used in the past to combat blood clots; used to treat ringworm and mange in animals.Also used to neutralize chlorine and to bleach bone.If this is inhaled by people who suffer from asthma, it can trigger an asthmatic attack. Sulfites are known to cause stomach irritation, nausea, diarrhea, skin rash, or swelling in sulfite-sensitive people. People whose kidneys or livers are impaired may not be able to produce the enzymes that break down sulfites in the body. Sulfites may destroy thiamin and consequently are not added to foods that are sources of this B vitamin. The final report to the FDA of the Select Committee on GRAS Substances stated in 1980 that it did not present a hazard when used at present levels but that additional data would be necessary if a significant increase in consumption occurred. _See_ Sulfites. ASP. E
**SODIUM SULFO-ACETATE DERIVATIVES •** Used as emulsifiers in margarine. Up to 0.5 percent. _See_ Sodium Sulfate. **SODIUM TARTRATE •** A laxative, sequestrant, chemical reactant, and stabilizer in cheese and artificially sweetened jelly. _See_ Tartaric Acid. GRAS. NUL. E
**SODIUM TAUROCHOLATE •** Taurocholic Acid. The chief ingredient of the bile of carnivorous animals. Used as an emulsifier in dried egg white up to 0.1 percent. It is a lipase accelerator. Lipase is a fat-splitting enzyme in the blood, pancreatic secretion, and tissues. NUL
**SODIUM TETRABORATE •** _See_ Borax. E
**SODIUM TETRAPHOSPHATE •** Sodium Polyphosphate. Used as a sequestering additive. _See_ Phosphate. GRAS
**SODIUM THIOSULFATE •** An antioxidant used to protect sliced potatoes and uncooked french fries from browning and as a stabilizer for potassium iodide in iodized salt. Also used to neutralize chlorine and to bleach bone. It is an antidote for cyanide poisoning and has been used in the past to combat blood clots; used to treat ringworm and mange in animals. Poorly absorbed by the bowel. GRAS. ASP
**SODIUM** **_p_ -** **TOLUENE-SULFOCHLORAMINE •** Chloramine-T. Water-purifying additive and a deodorant used to remove weed odor in cheese.Poisoning by chloramine-T is characterized by pain, vomiting, sudden loss of consciousness, circulatory and respiratory collapse, and death.**SODIUM TOLUENESULFONATE •** Methylbenzenesulfonic Acid, Sodium Salt.An aromatic compound that is used as a solvent._See_ Benzene.**SODIUM TRIMETAPHOSPHATE •** A starch modifier._See_ Sodium Metaphosphate and Modified Starch. |
**Pts with Kaposi's sarcoma:** All previously mentioned side effects plus depression, dyspepsia, dry mouth or thirst, alopecia, rigors.##### SIDE EFFECTS
**Frequent:** Flu-like symptoms (fever, fatigue, headache, myalgia, anorexia, chills), rash (hairy cell leukemia, Kaposi's sarcoma only).Dosage in Hepatic Impairment
No dose adjustment (see Contraindications).If severe adverse reactions occur, modify dose or temporarily discontinue drug. Condylomata Acuminata
**Intralesional:** **ADULTS:** 1 million units/lesion 3 times/wk for 3 wks. May administer a second course at 12–16 wks. Use only 10-million-unit vial, and reconstitute with no more than 1 ml diluent. **Maximum:** 5 lesions per treatment. AIDS-Related Kaposi's Sarcoma
**IM, Subcutaneous:** **ADULTS:** 30 million units/m2 3 times/wk. Use only 50-million-unit vials. If severe adverse reactions occur, modify dose or temporarily discontinue drug. Chronic Hepatitis C
**IM, Subcutaneous:** **ADULTS:** 3 million units 3 times/wk for up to 6 mos. For pts who tolerate therapy and whose ALT level normalizes within 16 wks, therapy may be extended for up to 18–24 mos. May be used in combination with ribavirin. **CHILDREN, 3–17 YRS (WITH HIV CO-INFECTION):** 3–5 million units/m2 3 times/wk with ribavirin for 48 wks. Chronic Hepatitis B
**IM, Subcutaneous:** **ADULTS:** 30–35 million units weekly, either as 5 million units/day or 10 million units 3 times/wk for 16 wks. **Subcutaneous:** **CHILDREN 1–17 YRS:** 3 million units/m2 3 times/wk for 1 wk, then 6 million units/m2 3 times/wk for 16–24 wks. **Maximum:** 10 million units 3 times/wk. Malignant Melanoma
**IV:** **ADULTS:** Initially, 20 million units/m2 5 times/wk for 4 wks. **Maintenance:** 10 million units subcutaneously 3 times/wk for 48 wks. Follicular Non-Hodgkin's Lymphoma
**Subcutaneous:** **ADULTS:** 5 million units 3 times/wk for up to 18 mos. Dosage in Renal Impairment
Do not use when combined with ribavirin. Dosage in Hepatic Impairment
No dose adjustment (see Contraindications). ##### SIDE EFFECTS
**Frequent:** Flu-like symptoms (fever, fatigue, headache, myalgia, anorexia, chills), rash (hairy cell leukemia, Kaposi's sarcoma only). **Pts with Kaposi's sarcoma:** All previously mentioned side effects plus depression, dyspepsia, dry mouth or thirst, alopecia, rigors.**Rare:** Confusion, leg cramps, back pain, gingivitis, flushing, tremor, anxiety, eye pain.##### ADVERSE EFFECTS/TOXIC REACTIONS
Hypersensitivity reactions occur rarely.Severe flu-like symptoms appear dose-related.##### NURSING CONSIDERATIONS
BASELINE ASSESSMENT
CBC, blood chemistries, urinalysis, renal function, LFT should be performed before initial therapy and routinely thereafter. |
Fine-tuning the size has been the big challenge in particle production as it is a major contributor to their biodistribution.* Nanospheres are made of biodegradable/biocompatible polymers and have been widely reported as drug delivery vehicles and as carrier materials for imaging probes.Combining multiple different probes is a promising approach as it provides the opportunity for hybrid imaging, and hence the ability to increase visualization of biological targets. Multimodal probes can be visualized with different imaging modalities, which can complement each other to offset their limitations [30]. For example, one imaging modality (e.g., MRI, CT) may provide good physiological contrast, while the other imaging technique (e.g., PET, SPECT, OI) provides valuable functional information about the pathology. Other complementary capabilities are high spatial resolution and high probe sensitivity. The arbitrary combination of nanomaterials (Table 8.2) with imaging tags (Table 8.3) yields a vast diversity of nanoprobes. Discussion of all such nanoprobes is beyond the scope of this chapter, but a few commonly investigated nanoprobes and their underlying nanomaterials are described in the following:
* Liposomes are artificially-prepared vesicles sized between 20–1000 nm in diameter and composed of a (phospho)lipid bilayer that can carry cargo within its hydrophilic core or its lipophilic wall. Targeting moieties are generally bound to its outer phospholipids. Various radioisotopes for SPECT and PET imaging, as well as Gd for MR imaging, are also bound to the liposome surface through the use of chelating groups. The stability of liposomes _in vivo_ must be considered carefully and depends on many factors such as the bilayer rigidity, differences in osmolality between the inner aqueous core and bulk solution, and storage conditions. Surface functionalization by PEGylation is often used to improve steric stabilization (PEG = polyethylene glycol) [58–61]. * Nanospheres are made of biodegradable/biocompatible polymers and have been widely reported as drug delivery vehicles and as carrier materials for imaging probes. Fine-tuning the size has been the big challenge in particle production as it is a major contributor to their biodistribution.* Magnetic nanoparticles (MNPs, most commonly used as SPIONs) are a special form of nanoparticles and have been reported as biodegradable contrast agents for MRI.MNPs have been modified to target a tumor's folate or integrin receptors and could be imaged in an MR scanner by measuring the dark _T_ 2 contrast [65–67]. |
#### Management
Traditionally, penicillin has been used to treat gastrointestinal anthrax.In patients with severe disease manifested as marked ascites and abdominal pain, the clinical presentation may be similar to that in patients with end-stage liver disease with peritonitis.Gastrointestinal anthrax can cause enough upper gastrointestinal bleeding to be confused with variceal rupture.These findings are in contrast to those with disseminated infection from pulmonary anthrax, in which the lesions begin submucosally as a result of seeding from the bloodstream. These lesions can then secondarily ulcerate to the surface of the gastrointestinal tract epithelium. Untreated, gastrointestinal anthrax may last weeks and is fatal in over 50% of patients. Appropriate treatment results in a mortality rate less than 40%.27
#### Diagnostic Strategies
Diagnosis of _B. anthracis_ infection in cases of oropharyngeal disease is best accomplished by swabbing the oral lesions for culture and PCR. Blood cultures are recommended for all suspected cases of anthrax, but culture results usually are negative in patients with isolated oropharyngeal involvement. A Gram-stained smear from the lesions will demonstrate numerous polymorphonuclear leukocytes and gram-positive bacilli. Studies of acute and convalescent serum antibody to anthrax antigens may confirm the diagnosis, but serologic testing is not widely available. Diagnosis of the gastrointestinal variant of anthrax relies more on identifying _B. anthracis_ DNA by PCR assay and cultures of blood and, if possible, ascitic fluid. Stool or rectal swab should be obtained for culture and PCR as well.28
#### Differential Considerations
Oropharyngeal anthrax lesions are sometimes confused with peritonsillar abscess, although cervical swelling is unusually severe in cases of oropharyngeal anthrax. The marked swelling of the oral lesions is secondary to edema and should not yield pus if incision and drainage are performed. Gastrointestinal anthrax can cause enough upper gastrointestinal bleeding to be confused with variceal rupture. In patients with severe disease manifested as marked ascites and abdominal pain, the clinical presentation may be similar to that in patients with end-stage liver disease with peritonitis. #### Management
Traditionally, penicillin has been used to treat gastrointestinal anthrax.Therefore, current recommendations from the CDC are to treat gastrointestinal cases in the same manner as cases of respiratory anthrax, with ciprofloxacin 400 mg intravenously (IV) every 12 hours or doxycycline 100 mg IV every 12 hours.Cephalosporins should not be used. |
Lowest effective dosage should always be used.#### **Administration**
• Be aware that dosage should be adjusted to needs of individual.###
**trifluoperazine hydrochloride**
Apo-Trifluoperazine , Novo-Trifluzine , PMS-Trifluoperazine , Terfluzine
* * *
**_Pharmacologic class:_** Piperazine phenothiazine
**_Therapeutic class:_** Antipsychotic
**_Pregnancy risk category C_**
#### **Action**
Unknown. Thought to act on subcortical levels of hypothalamic and limbic systems by producing antidopaminergic effects. Also lowers seizure threshold and exhibits some adrenergic, muscarinic, and anticholinergic activity. #### **Availability**
_Tablets:_ 1 mg, 2 mg, 5 mg, 10 mg
#### **Indications and dosages**
Schizophrenia
**Adults:** 2 to 5 mg P.O. b.i.d. ; may increase gradually to obtain adequate response. Usual maintenance dosage is 15 to 20 mg/day. **Children ages 6 to 12:** Initially, 1 mg P.O. once or twice daily in hospitalized patients or those under close supervision; may increase gradually up to 15 mg/day P.O. until symptoms are controlled or adverse reactions are intolerable. Nonpsychotic anxiety
**Adults:** 1 to 2 mg P.O. b.i.d. Do not exceed 6 mg/day or 12 weeks' duration. #### **Dosage adjustment**
• Hepatic disease
• Elderly or debilitated patients
#### **Contraindications**
• Hypersensitivity to drug, other phenothiazines, or bisulfites
• Severe hepatic disease
• Bone marrow depression
• Blood dyscrasias
• Coma
• Concomitant use of other CNS depressants in high doses
#### **Precautions**
Use cautiously in:
• seizure disorders, cardiovascular disorders, GI obstruction, glaucoma, retinopathy
• elderly or debilitated patients
• pregnant or breastfeeding patients. #### **Administration**
• Be aware that dosage should be adjusted to needs of individual. Lowest effective dosage should always be used. |
Could their symptoms be related to that?They had eaten some lettuce from their garden that night.Not as sick as the patient, but his heart had been racing, and he had felt nauseated and jittery, though he felt fine now.There was one other thing: after dinner, he had felt a little funny, too.He paused.And her sleeping was no worse than usual.The light had been bothering her since they got there, her fiancé told him. McGhee turned the lights down and began to examine the patient. She had no fever. Her mouth was dry, and her skin was quite warm though not sweaty. The rest of her exam was normal. An EKG showed no abnormalities beyond the rapid heart rate. McGhee thought carefully about his friend. For almost anyone with a change in mental status, illicit drugs had to be on the list of possible causes, as unlikely as it seemed in this case. In addition, she took Elavil, which could cause many of these symptoms when taken in large quantities. Could she have taken an overdose? That could cause the rapid heart rate and confusion. But the most dangerous side effect of an Elavil overdose is dangerously low blood pressure. Hers was dangerously high. Perhaps the patient was bipolar and had moved from depression to mania? Or could it be something different? Could she have too much thyroid hormone? The thyroid is the flesh-and-blood version of a carburetor, regulating how hard the body's machinery works. Too little of this hormone, and the body slows down. Too much, and it speeds up. He questioned the patient's fiancé. Had she shown signs of mania? She had a history of insomnia, and sleeplessness was one sign of both mania and thyroid overload. How was she sleeping? Until this evening she had been fine, he insisted. She had been depressed, but not since starting the Paxil. And her sleeping was no worse than usual. He paused. There was one other thing: after dinner, he had felt a little funny, too. Not as sick as the patient, but his heart had been racing, and he had felt nauseated and jittery, though he felt fine now. They had eaten some lettuce from their garden that night. Could their symptoms be related to that?He had been delirious like this patient, but had not had the elevated heart rate or blood pressure and had been sweating profusely.Still uncertain, the doctor ordered a few routine blood tests to look for the presence of an infection or an abnormality in her blood chemistry or thyroid hormone.He also ordered a urine test to look for illegal drugs and Elavil, the medication she used for sleep. |
This can be a signal to you to take the remedies mentioned above.Sometimes a herpes outbreak is the first sign that your body is fighting an acute illness.If you have recurrent outbreaks, you need to figure out what is impairing your immune system, such as allergies or emotional stress.Once you're past the initial stage of illness, the herbs or remedies you need will depend on your particular set of symptoms, so you may need to consult with a practitioner. Chronic Infections
Chronic infections such as sinus infections, urinary tract infections, and herpes simplex (cold sores, genital herpes, or shingles) will perpetuate trigger points, so you need to resolve or manage chronic infections to obtain lasting relief from lower leg, knee, ankle, or foot pain, and from trigger points in general. With both sinus infections and urinary tract infections, antibiotics often don't kill all of the pathogens, and you end up with lingering, recurrent infections. However, antibiotics have the advantage of working quickly, so I often recommend combining antibiotics with other treatments, such as acupuncture, herbs, and homeopathic remedies. This will knock the infection out as quickly and completely as possible, and help prevent it from becoming a chronic problem. Urinary tract infections must be dealt with promptly. You can use over-the-counter allopathic drugs, Chinese herbs, or cranberry extract or juice (don't use sweetened juice), but if your symptoms don't improve right away, you need to see your doctor. Urinary tract infections can turn into life-threatening kidney infections. A variety of supplements, herbs, and pharmaceutical drugs are used to treat recurrent herpes infections, and some will work better than others for you. If you have recurrent outbreaks, you need to figure out what is impairing your immune system, such as allergies or emotional stress. Sometimes a herpes outbreak is the first sign that your body is fighting an acute illness. This can be a signal to you to take the remedies mentioned above.The fish tapeworm and giardia both scar the lining of the intestines and impair your ability to absorb nutrients, and they also consume vitamin B12.Amoeba can produce toxins that are passed from the intestines into the body.Fish tapeworms can be present in raw fish. |
The terms Appropriate, Uncertain, and Inappropriate have been recently updated and replaced with the terms Appropriate, May Be Appropriate, and Rarely Appropriate.The appropriate mode of revascularization by PCI or CABG for various anatomic subsets incorporates the burden of coronary artery disease and the presence of total occlusion (which may be measured by the SYNTAX score6) into the decision making. Importantly, in the focused update of 2012, two revisions resulted in a higher appropriateness rating for PCI than in the initial appropriateness criteria published in 2009, based largely on the positive results of the SYNTAX (Synergy Between PCI with TAXUS and Cardiac Surgery) randomized trial in these subgroups of patients.7 Three-vessel disease is categorized as appropriate for PCI when there are three focal stenoses or a low SYNTAX score but categorized as uncertain in appropriateness for PCI if multiple diffuse lesions or an intermediate to high SYNTAX score is present (Table 55G-11).5 Isolated left main stenosis and left main disease with a low burden of CAD are classified as uncertain appropriateness for treatment by PCI. The terms Appropriate, Uncertain, and Inappropriate have been recently updated and replaced with the terms Appropriate, May Be Appropriate, and Rarely Appropriate. |
Recognition of different patterns of inflammation can render clinically useful histologic diagnoses (Box 37.1).However, characterization of specific inflammatory patterns helps to establish pathologic diagnoses and provides insight into the pathogenesis of disease.Black pigment stones develop more frequently in patients with Crohn's disease, particularly those with extensive ileitis and those who have had an ileal resection. The predilection for stone formation in patients with ileitis or in those who have had an ileal resection stems from decreased or absent functionality of the terminal ileum, which is the site of 90% of bile salt resorption. In normal individuals, unconjugated bilirubin precipitates in the colon as calcium bilirubinate or other bilirubinates. In contrast, impaired or absent resorptive function in the ileum in patients with Crohn's disease leads to increased levels of bile salts in the colon, where salts solubilize unconjugated bilirubin.43 Subsequent increased resorption of unconjugated bilirubin in the colon leads to supersaturation of bile (as much as three times normal levels), and stone formation. ## Cholecystitis
Inflammatory diseases of the gallbladder are a frequent cause of morbidity in Western countries. The term cholecystitis encompasses a group of disorders that have different pathologic, pathogenetic, and clinical characteristics. As in other organs of the gastrointestinal tract, most inflammatory diseases of the gallbladder produce nonspecific histologic features because they elicit a nondistinctive type of cellular inflammatory infiltrate. However, characterization of specific inflammatory patterns helps to establish pathologic diagnoses and provides insight into the pathogenesis of disease. Recognition of different patterns of inflammation can render clinically useful histologic diagnoses (Box 37.1).Ultrasonography often demonstrates thickening of the gallbladder wall or pericholecystic fluid. |