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目的:分析总结1011例小儿心脏手术体外循环(CPB)以及转流中出现的意外和故障。方法:大部分病例采用中度低温、常规灌注方法;部分病例采用深低温低流量或深低温停循环方法。结果:1011例中发生意外和故障10例,死亡3例。结论:小儿CPB应以高流量灌注为主,适时应用低温流量;中度血液稀释,维持胶体渗透压2.4kPa以上;通过压力适应的静态膨肺和有效的左心引流保护肺功能;用膜式氧合器和多重微栓滤器,减少微栓并发症;复跳后辅助循环时间要足够,采取慢过度小流量停止转流,合理应用心血管活性药物,防治心功能不全。
OBJECTIVE: To analyze and summarize the accident and failure of cardiopulmonary bypass (CPB) in 1011 pediatric cardiac surgery and commutation. Methods: In most cases, mild hypothermia and routine perfusion methods were used. In some cases, deep hypothermia and low flow rate or deep hypothermic circulatory arrest were used. Results: 1011 cases of accidents and failures in 10 cases, 3 cases of death. Conclusions: CPB in infants should be mainly perfusion with high flow rate, low temperature flow rate should be applied in time; moderate hemodilution should be used to maintain colloid osmotic pressure above 2.4 kPa; pulmonary function should be protected by pressure adaptive static inflation and effective left ventricular drainage; Oxygenator and multiple microthrombin filters to reduce the complications of micro-embolization; assisted circulation after rebound time should be sufficient to take too slow to stop the flow of small flow, rational use of cardiovascular active drugs, prevention and treatment of cardiac insufficiency.