in the control group ( rat hearts ) , arrhythmias including ventricular fibrillation ( vf ) ( incidence , 64.3 to 83.3 % ) , ventricular tachycardia ( vt ) ( 66.7 to 84.6 % ) , premature ventricular contraction ( pvc ) and premature atrial contraction ( pac ) occurred immediately after reperfusion and lasted for 1 to 3 min .
C0003811
arrhythmias
C0042510
ventricular fibrillation