The current status of implantable cardioverter defibrillator for ischemic cardiomyopathy

Implantable cardioverter defibrillator is the mainstay of sudden cardiac death prevention, but in contrast to its role in secondary prevention, its role in primary prevention is sometimes not so clear in many clinical contexts. When to implant after a myocardial infarction and at what ventricular function still remains debatable in many clinical situations.