The operative time of the PAL group with n = 6 was 213.33 ± 78.91 minutes (the study group with n = 84 was 169.2 ± 47.2 minutes), the chest drainage time of the PAL with n = 6 was 12.33 ± 1.97 days (the study group with n = 84 was 6.31 ± 2.15 days), the hospital stay of the PAL was n = 6 was 14.50 ± 1.87 days (the study group with n = 84 was 9.56 ± 2.56 days).