All cases were intubated with double-lumen tubes(DLT)and one lung ventilation(OLV)was performed under close monitoring of NIBP,HR,ECG,Spo2,PETCO2,Paw.

• 所有患者均选择双腔管插管(Robertshaw)单肺通气。 术中监测NIBP、HR、ECG、Spo2、PETCO2、Paw。