Cardioverter Defibrillator Therapy as a Bridge to Heart Transplantation

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Abstract
The prognosis of patients with severely impaired left ventricular function is poor, with an annual mortality rate of about 50%, and the majority die from sudden cardiac death. Heart transplantation is an accepted therapy for patients with end-stage heart disease; however, about 30% of candidates for transplantation die from sudden cardiac death while on the waiting list. It has been shown that implantable cardioverter defibrillator (ICD) therapy has a low surgical mortality and is highly effective in the prevention of sudden death. Therefore, prophylactic ICD implantation may prevent sudden death in patients with end-stage heart disease while on the waiting list, and it is highly probable that patients with an ICD have a greater chance of survival until a donor heart becomes available. However, this hypothesis still has to be proven by prospective studies.