心脏停跳后心肺脑复苏(CPR)开始的时间对患者存活率起决定性的作用,4min内CPR开始时患者存活率达43％～53％。传统观念认为心脏骤停超过4～6min后脑细胞损害不可逆,因此必须在心跳呼吸停止前4min内抓紧进行抢救才有望复苏成功。现代观点认为若现场能进行有效地CPR而维持重要脏器如心脑肾等血液灌注,脑细胞不会发生不可逆的损害,而是在复苏后继发“再灌注损伤”,若能积极防治再灌注损伤综合症,即使心跳呼吸停止 Cardiac CPR after cardioplegia began to play a decisive role in the survival rate of patients, and the survival rate of patients with CPR in 4 minutes reached 43% -53%. The traditional concept that the cardiac arrest more than 4 ~ 6min brain cell damage irreversible, it must be stopped within 4min before the heart rate breath to rescue it is expected to recover successfully. Modern point of view that if the site can effectively CPR and maintain vital organs such as heart and brain blood perfusion, brain cells will not irreversibly damage, but in the recovery of secondary “reperfusion injury,” if the active prevention and treatment of reperfusion Injury syndrome, even if the heartbeat stops breathing