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全麻腹腔镜胆囊切除术中应用小潮气量联合低水平呼气末正压通气对患者呼吸功能的影响 被引量:3

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摘要 目的观察全身麻醉腹腔镜胆囊切除术中应用小潮气量(VT)联合低水平呼气末正压通气(PEEP)对患者呼吸功能的影响。方法将40例ASA I或Ⅱ级腹腔镜胆囊切除术患者随机分为A、B两组。A组机械通气模式为间歇正压通气(IPPV)加5 cm H2O PEEP,VT=6 ml/kg,呼吸频率(f)=16次/min;B组机械通气模式为IPPV,VT=9 ml/kg,f=12次/min。观察术前(T1)、麻醉插管后30 min(T2)、拔管后15 min(T3)的动脉氧分压(PaO2)、动脉二氧化碳分压(PaCO2)、呼气末二氧化碳分压(PETCO2)、肺泡-动脉氧分压差(A-aDO2)、平均动脉压(MAP)、中心静脉压(CVP)及术中的气道峰压(Ppeak)。结果 T3时A组PaO2明显高于B组(P〈0.05),A组A-aDO2明显低于B组(P〈0.05),其他各时点AB两组PaO2、PaCO2、PETCO2、A-aDO2、MAP、CVP、Ppeak组间比较差异无统计学意义(P〉0.05)。结论腹腔镜胆囊切除术中应用小VT联合低水平PEEP通气能有效改善患者术后低氧血症,减少肺部并发症,有利于患者呼吸功能的恢复,对血流动力学无明显影响,是腹腔镜上腹部手术全麻安全有效的通气方法。
出处 《临床医学》 CAS 2011年第2期82-83,共2页 Clinical Medicine
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