The automatic implantable defibrillator.

Abstract

The automatic implantable defibrillator is undergoing clinical trials in the United States. The device is a self-contained unit designed to detect malignant ventricular arrhythmias as they occur and to terminate them with a defibrillating current. Early clinical trials demonstrate its safety and effectiveness in terminating ventricular tachyarrythmias as well as its ability to reduce markedly the incidence of sudden cardiac death in high-risk patients. Continued refinements should further improve reliability and safety of the device.