本文观察 PICU 危重患儿145例,发现呼吸衰竭占首位,选用机械通气尤为重要。生命信息的监测是对一切危重患儿最基本的监测,对新生儿还应注意血糖和经皮氧分压的监测。小儿心肺抑制多表现为呼吸停止早于心脏停搏,临终心电活动多为严重心动过缓,经复苏处理多数(84.90%)能恢复心肺有效活动。复苏后要重视缺血后再流通对脑细胞的损害。 This article observed 145 cases of critically ill children with PICU, respiratory failure found in the first place, the selection of mechanical ventilation is particularly important. Life information monitoring is the most basic monitoring of all critically ill children, newborns should also pay attention to the monitoring of blood glucose and transcutaneous oxygen pressure. Pediatric cardiopulmonary suppression manifested as respiratory arrest earlier than cardiac arrest, dying cardiac activity mostly severe bradycardia, the majority of recovery (84.90%) to restore cardiopulmonary activity. After recovery, attention should be paid to the damage of brain cells after ischemia and circulation.