all rabbits subject to occlusion of the left circumflex artery below where it emerges from under the left atrial appendage had ecg changes ( st-segment elevation , lead ii ) , 80 % had arrhythmias , and 50 % died in ventricular fibrillation during the first 20 min of coronary artery occlusion .
C0003811
arrhythmias
C0042510
ventricular fibrillation