这种损伤干扰了正常的心电活动，导致非常快速的、不正常的心脏节律，阻止了心脏向身体其它部位的正常泵血。
The scarringinterrupts the normal electrical activity of the heart, causing very fast, abnormal heart beats that prevent the heart from pumping blood to the rest ofthe body.
此时发生了心搏停止，但经心脏外按摩恢复了自动节律。
At this point cardiac arrest occurred, But spontaneous rhythms returned following external cardiac massage.
偶然出现节律不规则是正常的，心搏过速是心率快而均匀，心搏过缓是心率慢而均匀。
Occasional arrhythmias are normal. Tachycardia is a fast regular rhythm; bradycardia is a slow rhythm.
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