SCD is defined as unexpected death due to cardiac causes that occurs within 1 hour of acute symptoms. SCD can be reversed with the use of an ICD. These devices now can be implanted by catheter techniques, obviating thoracotomy. SCD is preventable. The incidence of SCD can be significantly reduced by addressing the fundamental pathophysiology of SCD, which primarily is CAD. Our combined and aggressive implementation of preventive regimens to reduce the risk of cardiac events will save lives. These measures include diet, weight reduction, smoking cessation, regular exercise, and therapeutic drugs. Amiodarone, although effective in preventing lethal ventricular arrhythmias, has not matched the long-term results of the ICD in the successful management of SCD.

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