using programmed ventricular stimulation , which can detect significant ventricular arrhythmias in patients with very little ectopy in 24-hour electrocardiographic recordings , 20 % of patients have ventricular tachycardia 2 to 6 weeks after acute myocardial infarction ( ami ) .
C0085612
ventricular
C0042514
ventricular tachycardia