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单肺麻醉期间肺保护性通气对肺功能及血管内皮细胞的影响 被引量:10

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摘要 目的比较肺保护性通气与传统通气方式对单肺通气患者肺功能及毛细血管内皮细胞的影响。方法 50例ASAⅠ~Ⅱ级择期行食管癌根治术患者,随机分为传统单肺通气组(COLV组)和保护性单肺通气组(POLV组),毎组25例。双肺通气时潮气量10mL/kg,呼吸频率12次/min,吸呼比1∶1.5,吸入氧浓度1.0。双肺通气30min后行单肺通气,COLV组单肺通气参数:潮气量10mL/kg,呼吸频率12次/min,吸呼比1∶1.5,吸入氧浓度1.0,PEEP为0。POLV组潮气量7mL/kg,呼吸频率14~20次/min,吸呼比1∶1~1∶2,吸入氧浓度1.0,PEEP 4~10cm H2O。维持呼气末二氧化碳分压4.67~6.00kPa。术毕清醒后拔除双腔支气管导管。于双肺通气30min(T1)、单肺通气60min(T2)和支气管拔管后2h(T3)时记录气道峰压(Ppeak)、气道阻力(Raw)、胸肺顺应性(CT),并在各时点采集动脉血测氧分压(PaO2)和二氧化碳分压(PaCO2),用酶联免疫吸附(ELISA)法测定血浆血管性假血友病因子(vWF)、可溶性细胞间黏附分子-1(sICAM-1)的浓度。结果 T2与T1相比,两组Ppeak、Raw、vWF、sICAM-1升高,CT、PaO2降低;T3与T1相比两组PaO2降低,vWF、sICAM-1升高;与COLV组相比,POLV组T2时Ppeak、Raw、PaCO2和sICAM-1降低;CT和PaO2升高;POLV组T3时PaO2增高,PaCO2、vWF和sICAM-1降低,差异有统计学意义(P<0.05)。结论肺保护性通气应用于单肺通气期间能降低气道压力,提高顺应性,改善氧合,减轻肺毛细血管内皮损伤。
出处 《重庆医学》 CAS CSCD 北大核心 2012年第10期985-987,共3页 Chongqing medicine
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