The mean durations of operative time 105 ± 38.5 (65 - 185 min), intraoperative blood loss: 150 ± 20 (100 - 180ml), the mean durations of chest drainage: 2.05 ± 0.5 (1 - 3 days); the mean postoperative hospitalization: 4.5 ± 1.5 (4 - 7 days).