to determine if pvas initiated in patients with spontaneous sustained ventricular tachycardia or fibrillation differ from those which are clearly a nonspecific response in structurally normal hearts , the initiation , characteristics , and relationship to ventricular repolarization of pvas greater than five beats in duration were evaluated in 32 patients without structural heart disease and in 36 patients with spontaneous sustained ventricular arrhythmias more than 9 days after myocardial infarction .
C0003811
pvas
C0085612
ventricular