patients experiencing sustained ventricular tachycardia after acute myocardial infarction and survivors of late ventricular fibrillation are at high risk of early cardiac mortality and require aggressive treatment which may consist of serial electrophysiologic testing to evaluate drug therapy , arrhythmia surgery , or placement of an automatic implantable cardioverter defibrillator .
C0155626
acute myocardial infarction
C0018787
cardiac