on the other hand , no definite differences were observed when the initial ecg was compared with the incidence of arrhythmias endangering life ( ventricular fibrillation , ventricular tachycardia , asystoly and 3 degrees atrio-ventricular block ) ( 0.10 less than p less than 0.20 ; chi 2 = 2.46 ) .
C0003811
arrhythmias
C0042510
ventricular fibrillation