The blood gas, TLC, RV, FEVI and 6MW were analyzed between preoperation and 6 months of postoperation.

• 术前和术后6个月对比血气、总肺活量(TLC)、肺残气量(RV)、第l秒肺活量(FEVI)以及6分钟步行实验(6MW)等指标。