A 15-year follow-up study of patients with panic disorder. Longitudinal outcome with pharmacotherapy in a naturalistic study of panic disorder. Are benzodiazepines still the medication of choice for patients with panic disorder with or without agoraphobia? A prospective naturalistic study of 326 panic-agoraphobic patients treated with antidepressants. The 35% CO 2 Hyperreactivity and Clinical Symptomatology in Patients With Panic Disorder After 1 Week of Treatment With Citalopram: An Open Study A randomized effectiveness trial of cognitive-behavioral therapy and medication for primary care panic disorder. Results of a naturalistic longitudinal study of benzodiazepine and SSRI use in the treatment of generalized anxiety disorder and social phobia. Therapeutic response to benzodiazepine in panic disorder subtypes. Discontinuation of benzodiazepine treatment: efficacy of cognitive-behavioral therapy for patients with panic disorder. Use of benzodiazepines and selective serotonin reuptake inhibitors in middle-aged and older adults with anxiety disorders: a longitudinal and prospective study. Rate of improvement during and across three treatments for panic disorder with or without agoraphobia: cognitive behavioral therapy, selective serotonin reuptake inhibitor or both combined. SECOND-STAGE TREATMENTS FOR RELATIVE NONRESPONDERS TO COGNITIVE BEHAVIORAL THERAPY (CBT) FOR PANIC DISORDER WITH OR WITHOUT AGORAPHOBIA-CONTINUED CBT VERSUS SSRI: A RANDOMIZED CONTROLLED TRIAL. Controlled discontinuation of benzodiazepine treatment for patients with panic disorder. Treatment of Panic Disorder with Agoraphobia: Randomized Placebo‐Controlled Trial of Four Psychosocial Treatments Combined with Imipramine or Placebo Maintenance drug therapy of panic disorder. Panic disorder, autonomic nervous system and dissociation - changes during therapy. Long‐term outcome of pharmacological and psychological treatment for panic disorder with agoraphobia: a 2‐year naturalistic follow‐up
BACKGROUND Panic disorder ( PD ) is generally regarded as a chronic condition with considerable variation in severity of symptoms . AIMS To describe the long-term outcome of naturalistically treated PD . METHODS Fifty-five out patients with PD , who participated in a placebo-controlled drug trial of the efficacy of alprazolam and imipramine 15 years ago were reassessed with the same instruments used in the original study . RESULTS Complete recovery ( no panic attacks and no longer on medication during the last 10 years ) was seen in 18 % of patients , and an additional 13 % recovered but were still on medication . Fifty-one percent experienced recurrent anxiety attacks whereas 18 % still met diagnostic criteria for PD . The incidence of agoraphobia decreased from 69 % to 20 % . Patients with agoraphobia at admission tended to have a poorer long-term outcome according to daily functioning compared with patients without agoraphobia at admission , although both groups reported improved daily functioning at follow-up . Maintenance medication was common . No benzodiazepine abuse was reported . CONCLUSION PD has a favourable outcome in a substantial proportion of patients . However , the illness is chronic and needs treatment . The short-term treatment given in the drug trial had no influence on the long-term outcome BACKGROUND Current recommendations suggest that pharmacotherapy for patients with panic disorder should be continued for at least 1 year [ Am . J. Psychiatry 155 ( 1998 ) 1 ] , despite a paucity of data systematic ally examining outcome for periods greater than 3 - 6 months . It is critically important to obtain more information on the effectiveness of medications over time for patients who initially responded to pharmacotherapy for panic disorder . METHODS Long-term outcome was examined for 78 patients who attained a 2-month period of sustained remission on medication and received maintenance pharmacotherapy for up to 24 months during the Massachusetts General Hospital Longitudinal Study of Panic Disorder , a prospect i ve , naturalistic study . Participants were categorized by their maintenance treatment condition at remission : benzodiazepine alone ( N = 45 , 58 % ) , antidepressant alone ( N = 12 , 16 % ) , and combined treatment with a benzodiazepine and an antidepressant ( N = 21 , 27 % ) . RESULTS Approximately half ( N = 36 , 46 % ) of the patients who had achieved remission relapsed at some time over the 2-year naturalistic study period , despite continued and adequate pharmacotherapy . There was no difference in timing or frequency of relapse by type of maintenance pharmacotherapy . LIMITATIONS Interpretation of the data is limited by the naturalistic nature of the study , and by the relatively low sample size . CONCLUSIONS This data suggests that patients with panic disorder have a high rate of relapse even after acute response to pharmacotherapy , despite continued treatment . In addition , the use of combined pharmacotherapy with antidepressants and benzodiazepines does not appear to provide greater protection from relapse than monotherapy OBJECTIVE Recently , pharmacological treatment guidelines for panic disorder have changed as newer treatment options have become available . The authors examined how the use of psychotropic drugs has shifted over the course of 10 years to determine if prescribing patterns have changed to reflect these revised treatment guidelines . METHOD A total of 443 patients with panic disorder were enrolled in the Harvard/Brown Anxiety Research Project , a prospect i ve longitudinal study of anxiety disorders . These patients were interviewed over the course of 10 years to examine their use of psychotropic medications . RESULTS Despite efforts aim ed at increasing the use of selective serotonin reuptake inhibitors ( SSRIs ) in patients with panic disorder ( e.g. , APA 's practice guideline for panic disorder , Food and Drug Administration approval of particular SSRIs for the treatment of panic disorder ) , only a modest increase in their use was found . Treatment patterns for psychotropic drugs  appear to have remained stable over the past decade , with benzodiazepines being the most commonly used medication for panic disorder . In comparison , SSRI use throughout the follow-up period has remained low . Patients using an SSRI did not have a more favorable clinical course than those using a benzodiazepine , nor were there significantly better rates of remission in patients using SSRIs and benzodiazepines concomitantly . CONCLUSIONS These results highlight a gap between pharmacological treatment guidelines and actual delivery of care in that recommendations to use SSRIs to treat panic disorder are not being followed . Factors potentially associated with promoting and ignoring treatment recommendations are discussed OBJECTIVE How far the results of r and omized controlled studies apply to everyday care can not be judged without regular measurements of outcomes in daily practice . We report on systematic data from a 3-year naturalistic prospect i ve study on panic disorder-agoraphobic ( PDA ) patients treated with antidepressants in a setting of routine clinical practice . Our aim is to describe the evolution of PDA in relation to the treatments employed , and to explore demographic and clinical characteristics that might be predictive of outcome . METHODS 326 DSM-III-R PDA patients treated with antidepressants in a setting of routine clinical practice were included in a 3-year naturalistic prospect i ve study . We utilized structured and semi-structures instruments , including the Structured Clinical Interview for Diagnosis and the Longitudinal Interview Follow-up Examination . The main antidepressants used were imipramine ( 39 % ) , clomipramine ( 28.5 % ) and paroxetine ( 23.3 % ) ; only 9 % of patients received other antidepressants . RESULTS 147 patients ( 45.1 % ) stayed on medication throughout the entire period of the follow-up . Of those who interrupted the treatment , 38 % stayed in remission . The probability of achieving at least one remission during the 3-year follow-up period was 96.5 % for PD and 95.9 % for Agoraphobia . Relapses after a period of at least 2 months of complete remission were also common , and the probability of presenting at least one relapse during the 3-years follow-up period was 67.1 % for PD and 39 % for Agoraphobia . The longest period of remission of PD is associated with low severity , medium-lasting course in patients with an onset of the illness in young adulthood . Less severe agoraphobia associated with moderately severe panic attacks appears to confer a better control of phobic behavior . All three major drugs were reasonably well tolerated ( only 9 % dropped out because of side effects ) , with sexual dysfunction and increased appetite being the most common side effects at the last evaluation ; in the first phase of the treatment anticholinergic effects and jitteriness were more common with TCAs . CONCLUSION Both classical antidepressants and paroxetine emerge as a useful treatment in the long-term management of PDA ; paroxetine appears particularly useful in PDA patients because it was significantly less likely to induce jitteriness , thereby reducing barriers to compliance The effect of a short treatment ( 7 days ) with citalopram on the reactivity to inhalations of 35 % CO 2 and 65 % oxygen and on clinical symptomatology was investigated in 15 patients with panic disorder who had a positive response to 35 % CO 2 inhalation . An open study design was applied . On day 0 , before starting drug treatment , and after 1 week of treatment , each patient underwent the 35 % CO 2 challenge , and clinical symptomatology was evaluated with psychometric scales . The results showed a significant reduction of CO 2 reactivity and of scores on the anticipatory anxiety subscale of Panic Associated Symptoms Scale . These results confirm that the serotonergic system plays an important role in the modulation of CO 2 hyperreactivity and suggest an early anxiolytic effect of citalopram in patients who have panic disorder and are hyperreactive to CO 2 BACKGROUND Panic disorder is a prevalent , often disabling condition among patients in the primary care setting . Although numerous studies have assessed the effectiveness of treatments for depression in primary care , few such studies have been conducted for panic disorder . OBJECTIVE To implement and test the effectiveness of a combined pharmacotherapy and cognitive-behavioral intervention for panic disorder tailored to the primary care setting . DESIGN R and omized , controlled study comparing intervention to treatment as usual . SETTING Six primary care clinics associated with 3 university medical schools , serving an ethnically and socioeconomically diverse patient population . PARTICIPANTS Two hundred thirty-two primary care patients meeting DSM-IV criteria for panic disorder . Comorbid mental and physical disorders were permitted , provided these did not contraindicate the treatment to be provided and were not acutely life threatening . INTERVENTION Patients were r and omized to receive either treatment as usual or an intervention consisting of a combination of up to 6 sessions ( across 12 weeks ) of cognitive-behavioral therapy ( CBT ) modified for the primary care setting , with up to 6 follow-up telephone contacts during the next 9 months , and algorithm-based pharmacotherapy provided by the primary care physician with guidance from a psychiatrist . Behavioral health specialists , the majority inexperienced in CBT for panic disorder , were trained to deliver the CBT and coordinated overall care , including pharmacotherapy . MAIN OUTCOMES MEASURES Proportion of subjects remitted ( no panic attacks in the past month , minimal anticipatory anxiety , and agoraphobia subscale score < 10 on Fear Question naire ) and responding ( Anxiety Sensitivity Index score < 20 ) and change over time in World Health Organization Disability Scale and short form 12 scores . RESULTS The combined cognitive-behavioral and pharmacotherapeutic intervention result ed in sustained and gradually increasing improvement relative to treatment as usual , with significantly higher rates at all points of both the proportion of subjects remitted ( 3 months , 20 % vs 12 % ; 12 months , 29 % vs 16 % ) and responding ( 3 months , 46 % vs 27 % ; 12 months , 63 % vs 38 % ) and significantly greater improvements in World Health Organization Disability Scale ( all points ) and short form 12 mental health functioning ( 3 and 6 months ) scores . These effects were obtained in spite of similar rates of delivery of guideline -concordant pharmacotherapy to the 2 groups . CONCLUSION Delivery of evidence -based CBT and medication using the collaborative care model and a CBT-naive , midlevel behavioral health specialist is feasible and significantly more effective than usual care for primary care panic disorder The past decade has brought major new developments in the psychopharmacologic management of generalized anxiety disorder and social phobia . We examined medication-prescribing patterns for the treatment of these anxiety disorders for 12 years to assess changes in patients ' anti-anxiety psychotropic medication usage during that period of evolving practice guidelines . We examined psychotropic medication use in 305 patients with generalized anxiety disorder and 232 with social phobia enrolled in the Harvard/Brown Anxiety Disorders Research Project ( HARP ) , a prospect i ve , longitudinal study of anxiety disorders .  Psychotropic treatment patterns seem to have remained relatively stable over 12 years with benzodiazepines the medications most commonly used for both generalized anxiety disorder and social phobia . Comparatively , selective serotonin reuptake inhibitor ( SSRI ) and venlafaxine usage as st and -alone medications for these disorders remained low throughout the follow-up period . At the 12-year follow-up , 24 % of patients with generalized anxiety disorder and 30 % of patients with social phobia were utilizing neither an  SSRI/selective norepinephrine reuptake inhibitor ( SNRI ) nor a benzodiazepine . Treatment recommendations for use of SSRIs and venlafaxine in the management of generalized anxiety disorder and social phobia initially promulgated in 1998 had a modest impact on changes in psychopharmacologic practice 4 - 5 years later . Difficulties in the implementation of treatment guidelines are discussed CONTEXT This study makes a comparison between two subtypes of panic disorder regarding the clinical efficacy of clonazepam , a benzodiazepine . OBJECTIVES To evaluate the clinical efficacy of clonazepam in a fixed dosage ( 2 mg/day ) , compared to placebo , in the treatment of panic disorder patients and to verify whether there are any differences in the responses to clonazepam between panic disorder patients with the respiratory and non-respiratory subtypes . TYPE OF STUDY R and omized study with clonazepam and placebo . SETTING Outpatient Anxiety and Depression Unit of the Institute of Psychiatry , Universidade Federal do Rio de Janeiro , Rio de Janeiro , Brazil . PARTICIPANTS 34 patients with a diagnosis of panic disorder with agoraphobia , between 18 and 55 years old . PROCEDURES Administration of clonazepam or placebo for 6 weeks , in panic disorder patients , after they were classified within two subtypes of panic disorder : respiratory and non-respiratory . MAIN MEASUREMENTS Changes in the number of panic attacks in comparison with the period before the beginning of the study ; Hamilton Anxiety Scale ; Global Clinical Impression Scale ; and Patient 's Global Impression scale . RESULTS In the group that received clonazepam , by the end of the 6th week there was a statistically significant clinical improvement , shown by the remission of panic attacks ( p < 0.001 ) and decrease in anxiety ( p = 0.024 ) . In the group that received clonazepam there was no significant difference between the respiratory and non-respiratory subtypes of panic disorder , regarding the therapeutic response to clonazepam . CONCLUSION Clonazepam was equally effective in the treatment of the respiratory and non-respiratory subtypes of panic disorder , suggesting there is no difference in the therapeutic response between the two subtypes OBJECTIVE The primary disadvantage of high-potency benzodiazepine treatment for panic disorder is the difficulty of discontinuing the treatment . During treatment discontinuation , new symptoms may emerge and anxiety may return , preventing many patients from successfully discontinuing their treatment . In this controlled , r and omized trial the authors investigated the efficacy of a cognitive-behavioral program for patients with panic disorder who were attempting to discontinue treatment with high-potency benzodiazepines .  METHOD Out patients treated for panic disorder with alprazolam or clonazepam for a minimum of 6 months and expressing a desire to stop taking the medication ( N = 33 ) were r and omly assigned to one of two taper conditions : a slow taper condition alone or a slow taper condition in conjunction with 10 weeks of group cognitive-behavioral therapy . RESULTS The rate of successful discontinuation of benzodiazepine treatment was significantly higher for the patients receiving the cognitive-behavioral program ( 13 of 17 ; 76 % ) than for the patients receiving the slow taper program alone ( four of 16 ; 25 % ) . There was no difference in the likelihood of discontinuation success between the patients treated with alprazolam and those who received clonazepam . At the 3-month follow-up evaluation , 77 % of the patients in the cognitive-behavioral program who successfully discontinued benzodiazepine treatment remained benzodiazepine free . CONCLUSIONS These findings support the efficacy of cognitive-behavioral interventions in aiding benzodiazepine discontinuation for patients with panic disorder OBJECTIVE The purpose of this study was to examine the use of benzodiazepines ( BZs ) and selective serotonin reuptake inhibitors/selective norepinephrine reuptake inhibitors ( SSRIs/SNRIs ) over nine years of follow-up in middle-aged and older adults with diagnoses of panic disorder with or without agoraphobia , social phobia , or generalized anxiety disorder . SETTING AND PARTICIPANTS Participants in this study were enrolled in the Harvard/Brown Anxiety Research Project ( HARP ) . HARP is a naturalistic , longitudinal , multisite study of adults with anxiety disorders who are recruited from psychiatric setting s. The analytic sample consisted of 51 participants with anxiety disorders who were 55 to 70 years old at baseline and a younger cohort of 211 participants added for comparative analysis . DESIGN The authors examined patterns of medication use ( BZs and SSRIs/SNRIs ) in participants with anxiety disorders as they aged , by assessing the proportion of participants taking these medications using generalized estimating equation modeling . MEASUREMENTS The present data were derived from the structured diagnostic interview administered at enrollment using a combination of the Structured Clinical Interview for Diagnostic and Statistical Manual of Mental Disorders , Third Edition-R Non-Affective Disorder , Patient Version , Research Diagnostic Criteria Schedule for Affective Disorders-Lifetime , and subsequent follow-up interviews over a nine-year period using the Longitudinal Interval Follow-up Evaluation-Pharmacia & Upjohn to assess the weekly course of disorders to indicate syndrome severity and document medication use by specific type and dose on a weekly basis . RESULTS Findings showed that rates of BZ use were high among both the older ( 53 % at baseline ) and the younger ( 57.4 % ) age groups and did not significantly decrease over time , after controlling for time in episode of their anxiety disorders . There was a statistically significant increase in  SSRI/SNRI use over time in both groups . At the beginning of the study , 18 % of the older group and 21 % of the younger group were using SSRIs/SNRIs ; however , at the end of the study , the rates increased to 35 % and 43 % , respectively . CONCLUSIONS Although there was an increase in  SSRI/SNRI use in older participants with anxiety disorders over the course of study , at nine years of follow-up , only 35 % of participants were utilizing SSRI/SNRI medication , while more than one-half of the same participants were continuing to use BZs . To the authors ' knowledge , there are no r and omized clinical trials that have addressed comparative efficacy and safety of BZs and SSRIs/SNRIs in this population . However , there is documented evidence of adverse effects of chronic BZ use and the risk of developing dependency in older population BACKGROUND Existing literature on panic disorder ( PD ) yields no data regarding the differential rates of improvement during Cognitive Behavioral Therapy ( CBT ) , Selective Serotonin Reuptake Inhibitor ( SSRI ) or both combined ( CBT+SSRI ) . METHOD Patients were r and omized to CBT , SSRI or CBT+SSRI which each lasted one year including three months of medication taper . Participating patients kept record of the frequency of panic attacks throughout the full year of treatment . Rate of improvement on panic frequency and the relationship between rate of improvement and baseline agoraphobia ( AG ) were examined . RESULTS A significant decline in frequency of panic attacks was observed for each treatment modality . SSRI and CBT+SSRI were associated with a significant faster rate of improvement as compared to CBT . Gains were maintained after tapering medication . For patients with moderate or severe AG , CBT+SSRI was associated with a more rapid improvement on panic frequency as compared to patients receiving either mono-treatment . LIMITATIONS Frequency of panic attacks was not assessed beyond the full year of treatment . Second , only one process variable was used . CONCLUSIONS Patients with PD respond well to each treatment as indicated by a significant decline in panic attacks .  CBT is associated with a slower rate of improvement as compared to SSRI and CBT+SSRI . Discontinuation of SSRI treatment does not result in a revival of frequency of panic attacks . Our data suggest that for patients without or with only mild AG , SSRI-only will suffice . For patients with moderate or severe AG , the combined CBT+SSRI treatment is recommended BACKGROUND Cognitive behavioral therapy ( CBT ) and pharmacotherapy are efficacious for the short-term treatment of panic disorder . Less is known about the efficacy of these therapies for individuals who do not respond fully to short-term CBT .  METHOD The current trial is a second-step stratified r and omized design comparing two treatment conditions-selective serotonin reuptake inhibitor ( SSRI ; paroxetine or citalopram ; n = 34 ) and continued CBT  ( n = 24)-in a sample of individuals classified as treatment nonresponders to an initial course of CBT for panic disorder . Participants were r and omized to 3 months of treatment and then followed for an additional 9 months . Only treatment responders after 3 months were maintained on the treatment until 12-month follow-up . Data analysis focused on panic disorder symptoms and achievement of response status across the first 3 months of treatment . Final follow-up data are presented descriptively . RESULTS Participants in the SSRI condition showed significantly lower panic disorder symptoms as compared to continued CBT at 3 months . Results were similar when excluding individuals with comorbid major depression or analyzing the entire intent-to-treat sample . Group differences disappeared during 9-month naturalistic follow-up , although there was significant attrition and use of non study therapies in both arms . CONCLUSIONS These data suggest greater improvement in panic disorder symptoms when switching to SSRI after failure to fully respond to an initial course of CBT . Future studies should further investigate relapse following treatment discontinuation for nonresponders who became responders . Clinical trials.gov Identifier : NCT00000368 ; https:// clinical trials.gov/show/NCT00000368 OBJECTIVE The purpose of this study was to compare the effects of discontinuing treatment with intermediate- and long-acting benzodiazepines . METHOD Fifty patients with panic disorder who had taken part in a double-blind treatment study and had responded to alprazolam , diazepam , or placebo for 8 months were asked to stop taking these medications gradually . RESULTS After a relatively rapid dose reduction , the majority of patients relapsed . Rebound anxiety and withdrawal symptoms were identified in a substantial minority of patients . Those who were taking alprazolam showed earlier and more intense rebound anxiety and withdrawal symptoms than did the patients who received diazepam . Both the level of pretreatment anxiety and the drug the patient was taking predicted the level of anxiety when drug treatment was discontinued . CONCLUSIONS The findings indicate that withdrawal phenomena commonly occur after patients stop taking benzodiazepines and that they are more frequent after discontinuation of treatment with shorter-acting drugs Few r and omized controlled trials have included panic disorder patients with moderate to severe agoraphobia . Therefore , this population was studied using pharmacotherapy as well as psychotherapy . At the time of the study , imipramine was widely used as a pharmacological treatment . Also , current practice guidelines for patients with panic disorder find selective serotonin reuptake inhibitors and tricyclic antidepressants roughly comparable in terms of efficacy . Therefore , the main objective of this study is to compare four psychosocial treatments — cognitive and grade d in vivo exposure treatments , grade d in vivo exposure , cognitive treatment , and supportive therapy — to evaluate the benefits of combining cognitive therapy with exposure in vivo . These treatments were combined with imipramine or placebo for a total of eight experimental conditions . Participants presented moderate to severe agoraphobia . The method involved a r and omized , double‐blind , placebo‐controlled trial with 137 participants who completed a 14‐session protocol involving the treatments just mentioned . Measures were taken at baseline and posttreatment and at 3‐ , 6‐ , and 12‐month follow‐up . All treatment conditions were statistically and clinical ly effective in reducing self‐reported panic – agoraphobia symptoms over the 1‐year follow‐up . No statistical differences were observed between imipramine and placebo conditions . This study found that all treatment modalities helped reduce panic and agoraphobic symptomatology over a 1‐year follow‐up period . These surprising results support the need to document the relations among the various components of an intervention . This would make it possible to assess the relative efficacy of the treatment components rather than of the intervention as a whole The efficacy of tricyclics and benzodiazepines in the short term ( approximately 2 - 4 months ) treatment of panic disorder is well demonstrated , but efficacy over the longer term is not considered established . The present study provided systematic data from a double blind comparison of maintenance therapy ( up to 8 months ) of panic disorder with or without agoraphobia with alprazolam , imipramine , or placebo in 181 patients who had responded to the same regimen in a r and omized 8-week treatment trial . All three groups had improved during the first 2 months ( active treatments more than placebo and about equal to each other ) , and all maintained or extended their improvement over the next 6 months without any significant change in dose . More than twice as many alprazolam and imipramine than placebo patients ( 15 % ) remained in treatment for the full 8 months and did slightly better on symptom measures than the remaining placebo patients . Both medications were well tolerated during the maintenance period . The data suggest sustained efficacy and safety of imipramine and alprazolam over an extended period . More specifically , they suggest that tolerance does not develop to the therapeutic effects of either drug OBJECTIVES Alarming somatic symptoms and in particular the cardiovascular symptoms , are the characteristic features of panic attacks . Increased cardiac mortality and morbidity have been proposed in these patients . Power spectral analysis of electrocardiogram R-R intervals is known to be a particularly successful tool in the detection of autonomic instabilities in various clinical disorders . Heart rate variability ( HRV ) has been found to be the outcome of rapidly reacting cardiovascular control systems . The aim of our study is to measure very low frequency b and ( VLF ) , low frequency b and ( LF ) and high frequency b and ( HF ) components of R-R interval during orthostatic experiment in patients with panic disorder before and after treatment and compares it with healthy controls . METHODS We assessed heart rate variability in 19 patients with panic disorder before and after 6-weeks treatment with antidepressants combined with cognitive behavioral therapy ( CBT ) and in 18 healthy controls . Diagnosis was done according to the ICD-10 research diagnostic criteria confirmed with MINI ( MINI international neuropsychiatric interview ) . Patients were treated with CBT and psychotropics . They were regularly every week assessed using CGI ( Clinical Global Impression ) , BAI ( Beck Anxiety Inventory ) and BDI ( Beck Depression Inventory ) . Heart rate variability was assessed during 3 positions ( 1st - 5 min supine ; 2nd - 5 min st and ing ; 3rd - 5 min supine ) before and after the treatment . Power spectra were computed for very low frequency - VLF ( 0.0033 - 0.04 Hz ) , low-frequency - LF ( 0.04 - 0.15 Hz ) and high frequency - HF ( 0.15 - 0.40 Hz ) b and s using fast Fourier transformation . RESULTS Nineteen panic disorder patients resistant to pharmacological treatment entered a 6-week open-label treatment study with combination of SSRI and CBT . The combination of CBT and pharmacotherapy proved to be an effective treatment in these patients . The patients significantly improved during the study period in all rating scales . There were highly statistical significant differences between panic patients and control group in all components of power spectral analysis in 2nd ( VLF , LF and H in st and ing ) and in two component of 3rd ( LF and HF in supine ) positions . There was also a statistically significant difference between these two groups in LF/HF ratio in st and ing position ( 2nd ) . During therapy there was a tendency increasing values in all three positions in components of HRV power spectra , but HF in 1st supine position was the only component where the increase reached the level os statistical significance . CONCLUSIONS These findings demonstrate a lower autonomic activity in panic disorder patients measured during the changes of postural position in comparison with healthy controls and tendency to increase this autonomic power during the treatment Two years after completion of a controlled outcome study of treatments for panic disorder with agoraphobia , patients were revisited and interviewed about their complaints . In the initial study , four treatments had been compared : ( i ) fluvoxamine combined with exposure ; ( ii ) placebo medication plus exposure ; ( iii ) psychological panic management plus exposure : and ( iv ) exposure alone . Comparison of the results at post‐test had revealed superior efficacy of fluvoxamine combined with exposure over the other three treatments in reducing agoraphobic avoidance . The current naturalistic follow‐up study investigated the long‐term efficacy of the treatments with regard to abatement of complaints and reduced dem and for further treatment . In addition , we examined whether patients were able to taper off the study medication without a recurrence of complaints . In total , 71 of the 76 patients of the original trial ( 93 % ) were interviewed . Comparison of the mean level of psychopathology at follow‐up revealed no difference between the original treatment groups . The effect in the fluvoxamine plus exposure group was maintained , but was no longer superior , due to further improvements in the other treatment groups . Most patients received additional treatment during the follow‐up period , usually because the 12 treatment sessions in the controlled study had yielded insufficient improvement . There was a trend for patients who received the fluvoxamine plus exposure treatment to require less aftercare than those who received the other treatments . Finally , almost 50 % of the patients who had received medication in the original trial were able to taper off the use of fluvoxamine without a recurrence of complaints
Two primary outcomes of efficacy and acceptability showed a possible advantage of benzodiazepines over placebo .
Low- quality evidence shows a possible superiority of benzodiazepine over placebo in the short-term treatment of panic disorders .
Due to these limitations , our results regarding the efficacy of benzodiazepines versus placebo provide only limited guidance for clinical practice .
BACKGROUND Panic disorder is characterised by recurrent unexpected panic attacks consisting of a wave of intense fear that reaches a peak within a few minutes .
Panic disorder is a common disorder , with an estimated lifetime prevalence of 1 % to 5 % in the general population and a 7 % to 10 % prevalence in primary care setting s. Its aetiology is not fully understood and is probably heterogeneous .
Panic disorder is treated with psychological and pharmacological interventions , often used in combination .
Although benzodiazepines are frequently used in the treatment of panic disorder , guidelines recommend antidepressants , mainly selective serotonin reuptake inhibitors ( SSRIs ) , as first-line treatment for panic disorder , particularly due to their lower incidence of dependence and withdrawal reaction when compared to benzodiazepines .
Despite these recommendations , benzodiazepines are widely used in the treatment of panic disorder , probably because of their rapid onset of action .
OBJECTIVES To assess the efficacy and acceptability of benzodiazepines versus placebo in the treatment of panic disorder with or without agoraphobia in adults .