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矫治小儿主动脉缩窄合并心内畸形的体外循环管理

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摘要 目的探讨经胸骨正中切口一期矫治小儿主动脉缩窄(CoA)合并心内畸形的体外循环方法。方法2005年1月~2008年7月手术治疗CoA合并心内畸形58例,其中男42例,女16例;年龄4d~8岁,平均(13.3±9.1)月,其中小于1岁39例,小于3月龄22例;体质量3~23kg,平均(6.6±3.0)kg。均经胸骨正中切口在深低温体外循环下一期矫治CoA合并心内畸形。结果深低温停循环(DHCA)48例,深低温微流量8例,中度低温体外循环2例。体外循环47~243min,平均(126±51)min;主动脉阻断26~153min,平均(59±32)min;DHCA16~56min,平均(23±8)min。手术死亡3例,分别死于心肺功能衰竭和低心排。结论婴幼儿CoA合并心内畸形一期矫治手术操作复杂,宜在深低温体外循环下进行,转流中控制停循环时间,使用pH稳态和α稳态相结合的血气管理,传统超滤结合改良超滤等措施减少神经系统并发症,良好的体外循环管理和心肌保护促使手术成功,降低死亡率。
作者 彭东
出处 《南方医科大学学报》 CAS CSCD 北大核心 2009年第9期1939-1940,共2页 Journal of Southern Medical University
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