在心房颤动，不协调电活动导致无效的心房收缩，减少心房充盈时间，减少心输出量。
During atrial fibrillation, uncoordinated electrical activity leads to ineffective atrial contraction, reduced atrial filling time, and decreasing cardiac output.
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。
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。
Should myocardial ischemia continue too long, myocyte death occurs, and electrical shock after this will only result in pulseless electrical activity or asystole.
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