we compared the relationship between plasma levels of procainamide and suppression or prevention of various forms of ventricular arrhythmias in 18 patients , six of whom had premature ventricular complexes ( pvcs ) during acute myocardial infarction ( ami ) , six of whom had pvcs in the setting of stable chronic ischemic heart disease ( cihd ) , and six of whom had recurrent symptomatic ventricular tachycardia ( vt ) with chronic pvcs between episodes of vt .
C0085612
ventricular arrhythmias
C0042514
ventricular tachycardia