【摘要】 目的　观察胸科手术病人麻醉中单肺通气 (OLV)期间不同通气方式的效果。方法　 10例择期胸科手术成年病人 ,ASAⅠ～Ⅱ级 ,在OLV期间首先采用全潮气量 (10ml/kg)不加PEEP ,随后采用半潮气量 (5ml/kg)同时施加 7cmH2 OPEEP两种通气方式 ,保持每分通气量不变。在开胸后OLV前 ,OLV时采用每种通气方式后 30min ,以及恢复双肺通气 (TLV)后 30min分别进行血气分析 ,同时监测气道压及血液动力学变化。结果　半潮气量时PaO2 、PaCO2 明显高于全潮气量时的水平 (P <0 0 1) ,PaCO2 的升高在临床允许范围由 ,气道峰压 (Ppeak)明显下降 (P <0 0 5 ) ,MAP、HR和CVP变化不大。结论　OLV时采用潮气量 5ml/kg同时施加PEEP 7cmH2 O可以作为改善动脉氧合的一种方法。更多还原

【Abstract】 Objective To evaluate the efficacies of different ventilatory pattern during one lung ventilation (OLV). Methods During OLV, all patients underwent two different ventilatory pattern, total volume (10ml/kg) without PEEP and half tidal volume (5ml/kg) with PEEP of 7cmH 2O. The arterial blood samples were collected for blood gases analysis immediately before one lung ventilation, 30min following two different OLV pattern and 30 min after resuming two lung ventilation. The airway pressure and hemodynamic parameters were monitored simutaneously. Results PaO 2 and PaCO 2 were higher during half tidal volume than during total tidal volume(P<0 01), but during half tidal vomume, PaCO 2 increased within the clinically accepted range, and peak airway pressure decreased (P<0 05).MAP,HR and CVP had no significant changes. Conclusions During one lung ventilation, half tidal volume pattern with PEEP of 7cmH 2O may be applied to improving the arterial oxygenation.更多还原