n.心搏停止；心律停止
Should myocardial ischemia continue too long, myocyte death occurs, and electrical shock after this will only result in pulseless electrical activity or asystole. 如果心肌缺血时间过长，心肌细胞死亡，此时的电除颤只会产生无脉性电活动或心搏停止。
