急性心性死亡是急救医疗上的最大难题,而且有很多问题尚不明了。如果将猝死定义为发病后1小时内出人意料的自然死亡,那么80～90%是由心血管疾病引起的,即便是将猝死定义为24小时以内的死亡,其大部分死因也是心脏疾患。而且中年以后的急性心性死亡,80%以上有冠状动脉硬化。通过心电监护、动态心电图偶然记录到的猝死经过表明,猝死的直接原因大部分是室颤和心脏停搏。无症状性 Acute cardiac death is the biggest problem in emergency medical care, and many problems are still unknown. If sudden death is defined as unexpected natural death within one hour of onset, then 80-90% is caused by cardiovascular disease, and most of the causes of death are heart disease, even when sudden death is defined as death within 24 hours. And after middle age acute cardiac death, more than 80% have coronary atherosclerosis. By ECG, accidental death recorded by Holter has shown that most of the direct causes of sudden death are ventricular fibrillation and cardiac arrest. Asymptomatic