the aim of this study of 20 young subjects ( 28 +/- 10.6 years ) with no apparent cardiac disease on clinical examination and chest x-ray was to determine the origin of complex ventricular arrhythmias : monomorphic or polymorphic ventricular extrasystoles , isolated or in valves ( average 18 158 +/- 12 388 per 24 hours ) and/or ventricular tachycardia ( 5 cases , sustained in 3 ) .
C0085612
ventricular arrhythmias
C0042514
ventricular tachycardia