“…[1,13] Several reports suggested that lobectomy patients suffered a significant reduction (15%) of functional reserve at 6 months postoperatively, with almost equal deterioration between lung function and exercise capacity. [14,15] Maziak et al reported that, at 6 months after lung transplantation, 6 patients with UDP had an FEV 1 of at least 60% and total lung capacities exceeding 78%. [16] Based on a comparison of our results, we know that in UDP group, all functional variables (FEV 1 , FVC, TLC, and DLCO) decreased significantly from preoperative to 6 months after the operation and significantly more so than in group of control.…”