A-aDO2 and Qs/Qt increased after entering the pleural cavities and raised further during one-lung anesthesia (Os/Qt = 18.52%), but both were still within clinic ally acceptable ranges.

• A-aDO2和Qs/Qt:进胸后增加；单侧肺通气后更显著。 Qs/Qt为18.；52%25。