Objective To describe the causes and outcome of out-of-hospital cardiac arrest (OHCA) in children.

目的了解小儿院外心跳停止（OHCA）的病因及影响预后的因素。

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Compared to conventional CPR, CCR has been shown to improve survival to hospital discharge after out-of-hospital cardiac arrest by a factor of 2.7-3.7.

与常规心肺脑复苏比相，心脑复苏提高了在院外发生心跳骤停患者的生存康复出院率。大约可以提高2.7到3.7个基点。

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The most common location of out-of-hospital sudden cardiac arrest is the home, a situation in which emergency medical services are challenged to provide timely care.

院外心脏骤停最常发生的场所是家里，这种情形对于急诊医疗提供及时救助提出了挑战。

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Over the past 50 years, 300 million people have been trained in CPR, yet today, CPR is only performed in about 25% of out-of-hospital cardiac arrest cases.

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But researchers noted that the fatality rate for cardiac arrest among the runners 71% was lower than other reported rates for out-of-the-hospital incidents of cardiac arrest, which hovered around 92%.

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