The risk factors for sudden cardiac arrest (SCA) are similar to those of coronary artery disease and include age, cigarette smoking, high blood pressure, high cholesterol, lack of physical exercise, obesity, diabetes, and family history of cardiac disease. A prior episode of sudden cardiac arrest also increases the likelihood of future episodes. A statistical analysis of many of these risk factors determined that approximately 50% of all cardiac arrests occur in 10% of the population perceived to be at greatest risk due to aggregate harm of multiple risk factors demonstrating that cumulative risk of multiple comorbidities exceeds the sum of each risk individually. Previous adverse cardiac events, non-sustained ventricular tachycardia (NSVT), syncope, and left ventricular hypertrophy (LVT) have been shown to predict sudden cardiac death in children. Current cigarette smokers with coronary artery disease were found to have a two to threefold increase in the risk of sudden death between ages 30 and 59. Furthermore, it was found that former smokers' risk was closer to that of those who had never smoked. Functional changes in the heart such as reduced ejection fraction or cardiac arrhythmia have been shown to increase the risk of cardiac arrest and act independently from the risk factors previously mentioned. Conditions that produce these functional changes can be acquired following previous cardiac injury, or inherited through familial history of arrhythmogenic disorders.
symptom of Hypothermia
symptom of Hyperthermia
symptom of Hypotension
symptom of Arrhythmia
symptom of Cardiogenic shock
symptom of Vomiting
symptom of Hypoglycemia
symptom of Hyponatremia