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Variables of lung function and Qs/Qt ratio. (A) PaO2/FiO2; (B) A-aDO2; (C) RI; (D) Qs/Qt ratio. Data are represented as mean ± SD. *, P<0.05 versus T0; #, P<0.05 versus group C. A-aDO2, Alveolar to arterial difference of oxygen tension; RI, Respiratory index; T0, before one-lung ventilation (OLV); T1, 30 min after OLV; T2, 60 min after OLV; T3, 10 min after re-expansion; T4, the end of operation.
