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心肺复苏是指心跳呼吸停止后的抢救。心跳呼吸停止所造成的最严重后果是缺氧和随之而来的代谢性酸中毒。脑细胞对缺氧的耐受性最差。据文献记载,常温下心跳停止4～6分后脑细胞即产生不可逆性损害,复苏成功率极低,且存活者神经系统后遗症严重。甚至认为儿童心跳停止5分钟后已无复苏指征。六十年代以来心肺复苏理论和技术不断发展,复苏成功率也大大提高。在国内心跳停止5分钟以上而复苏成功的报告并非少见,说明上述缺氧时限不能做
Cardiopulmonary resuscitation refers to the rescuing after the heartbeat stops breathing. The most serious consequences of a cessation of heartbeat are hypoxia and the consequent metabolic acidosis. Brain cells are the most resistant to hypoxia. According to the literature, brain cells are irreversibly damaged after being stopped for 4 to 6 minutes at room temperature, the success rate of recovery is extremely low, and the nervous system sequelae of survivors are serious. Even think that children have no signs of resuscitation after 5 minutes of cardiac arrest. The theories and technologies of cardiopulmonary resuscitation since the 1960s have been continuously developed, and the success rate of resuscitation has also been greatly improved. It is not uncommon for a report of successful resuscitation in a country with a heartbeat of more than 5 minutes, indicating that the above hypoxic time limit can not be done