Abstract

目的 了解腰麻硬膜外联合麻醉(CESA)中硬膜外腔注液对麻醉平面的影响.方法CESA120例随机分为A、B两组,每组60例,A组分为A1、A2、A3,B组分为B1、B2、B3.腰麻平面固定后,A组为平卧位,B组为头高脚低位10°~15°,A1、B1组经硬膜外腔注入生理盐水5 ml,A2、B2组经硬膜外腔注入生理盐水10 ml,A3、B3组经硬膜外腔注入生理盐水20 ml.结果注液后10 min,A1、B1组平面基本无变化;A2、A3组阻滞平面升高分别为(2.02±0.54)、(2.01±0.69)个脊神经节段(P<0.05).B2、B3组平面升高分别为(0.47±0.17)、(0.50±0.35)个脊神经节段(P>0.05).A2、A3组与B2、B3组之间相比差异有显著意义(P<0.01).结论CSEA中硬膜外腔注液可升高麻醉平面,平卧位注液较头高位注液平面升高更为明显,注入不同容量的生理盐水对麻醉平面有直接影响。

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