When sudden cardiac arrest occurs, death comes within a few minutes unless the victims' heart muscles are successfully jolted back into a normal rhythm with an electrical shock.

一旦心脏骤停发生，若心肌不能立即在电击的情况下恢复，患者将在几分钟内死亡。

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The most common reason for sudden cardiac arrest is a very chaotic heart rhythm (ventricular fibrillation), which occurs as a result of a heart attack.

心脏骤停的最常见原因是由心肌梗塞引起的心率极度紊乱（如室颤）。

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Previous studies have shown that earthquakes war or even the loss of a World Cup Soccer match can increase rates of death from sudden cardiac arrest in which the heart stops circulating blood.

之前的研究已经表明，地震、战争、甚至输了一场世界杯都会增加突发心搏停止而死的机率，在这种情况下心脏停止了供血循环。

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The program has reduced the number of incidents of sudden cardiac arrest, or heart attack,in these athletes.

VOA: standard.2009.12.12

Vollmer had the symptoms of long Q-T Syndrome, a condition that often leads to heart arrhythmia and sudden cardiac arrest.

FORBES: Dana Vollmer: The Definition of What it Really Means to be a Champion

The big worry in sudden cardiac arrest beyond restarting the heart is protecting the brain.

WSJ: New Strategies to Revive Victims of Cardiac Arrest

Sudden cardiac arrest occurs when the heart unexpectedly stops beating.

WSJ: This Device Saves Lives, But Can Be Hard to Find