目的：观察应用低流量麻醉技术吸入地氟醚在单肺通气时对循环及呼吸系统的影响。
Objective to observe the influences of low-volume anesthesia technology with inhalation of desflurane on circulation and respiratory systems during one-lung ventilation.
目的：分析开胸手术中应用双腔插管在单肺通气（OLV）时，低氧血症的发生原因及处理措施。
Objective: To analyse the causes and therapeutic measures of hypoxemia in thoracic surgery with one lung ventilation(OLV).
目的评价呼气末正压通气（PEEP）和连续气道正压通气（CPAP）在电视辅助胸腔镜手术（VATS）行单肺通气麻醉时对患者血氧合作用的影响。
Objective To evaluate the effect of PEEP and CPAP on the oxygenation and shunt fraction during one lung ventilation in video associate thorax-cope surgery(VATS).
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