Objective: To study the optimum dose of Adrenalin in cardiac resuscitation after heart sudden arrest.

目的：为探索心脏骤停时进行心脏复苏时肾上腺素的最适当剂量。

youdao

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。

youdao

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）。

youdao

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