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个体化保护性双肺通气在老年食管癌根治术患者术侧肺复张后的应用 被引量:6

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摘要 目的观察老年食管癌根治术患者单肺通气结束术侧肺复张后在动态压力-容积(P-V)曲线指导下行个体化保护性双肺通气对肺顺应性、动脉血氧分压(Pa02)及血浆血管性假血友病因子(vWF)水平的影响。方法选择择期行经右胸三切口食管癌根治术老年患者30例,按随机数字表法分为常规双肺通气组(Ⅰ组)、个体化保护性双肺通气组(P组),每组15例。单肺通气结束术侧肺复张后,Ⅰ组恢复双肺间歇正压通气,P组在Ⅰ组的基础上应用动态P-V曲线低位拐点对应的压力(PLIP)±2cmH2O(1cmH2O=0.098kPa)设定呼气末正压(PEEP),根据动态P-V曲线高位拐点对应容量(VUIP)的80%设定潮气量(VT),行个体化保护性双肺通气。分别于诱导后切皮前(T1)、单肺通气结束术侧肺复张即时(T2)、手术结束时(L)测定肺顺应性和PaO2,同时采集血液测定血浆vWF水平。结果两组患者PaO2、肺顺应性在T2均较T1明显降低,在T3有所回升,但Ⅰ组肺顺应性在T3仍明显低于T1[(38.844±8.28)ml/cmH2O比(43.534±8.37)ml/cmH2O](P〈0.05),P组肺顺应性在T3与T1比较差异无统计学意义(P〉0.05);两组患者血浆vWF水平在T2均较T1明显升高(P〈0.05),在T3较T2进一步升高(P〈0.05)。P组T3时血浆vWF水平明显低于Ⅰ组同时间点[(165.47±22.66)μg/L比(191.67±22.74)μg/L](P〈0.01)。结论在老年食管癌患者根治术期间,术侧肺复张后根据P-V曲线设置PEEP为PLIP±2cmH2O,设定VT为80%VUIP,行个体化保护性双肺通气,有助于改善肺顺应性,降低肺损伤。
作者 纪维 沈邮静
出处 《中国医师进修杂志》 2013年第14期68-70,共3页 Chinese Journal of Postgraduates of Medicine
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