这要求尽快进行早期除颤。

These call for defibrillation as soon as possible.

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实践证明，早期除颤可以明显提高心肺复苏的成功率。

It is proved by practice, early defibrillation may elevate obviously the successful rate of cardiopulmonary resuscitation.

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但是，如果病人在早期除颤之前接受心脏按压，长期内存活下来的几率会稍有增加。

But there was a small increase in long-term survival among those who received chest compressions before defibrillation.

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