title: I'm 79 and I have a pacemaker. Soon after receiving my first one, I developed persistent atrial fibrillation. In the past few months, though, I have had eight episodes of ventricular tachycardia. Within a year, my pacemaker battery will be exhausted and I'll need a replacement. What would be the benefit of an ICD over continuing with a pacemaker, or would there be any advantage?
mesh_terms: D000368:Aged; D017147:Defibrillators, Implantable; D006801:Humans; D010138:Pacemaker, Artificial; D012307:Risk Factors; D017180:Tachycardia, Ventricular / Q000517:prevention & control*