Table 3 Perioperative data in the thoracotomy and VATS group
Variables | Thoracotomy (N = 69) | VATS (N = 14) | P value | Cohen’s d value | Statistical power |
|---|---|---|---|---|---|
Surgical procedure | 0.078 | ||||
Sublobar resection | 1 (1.5%) | 2 (14.3%) | |||
Lobectomy | 39 (58.2%) | 8 (57.1%) | |||
Bilobectomy | 6 (9.0%) | 3 (21.4%) | |||
Sleeve lobectomy | 9 (13.4%) | 1 (7.1%) | |||
Double sleeve lobectomy | 2 (3.0%) | 0 (0) | |||
Pneumonectomy | 10 (14.9%) | 0 (0) | |||
Surgical margin | 0.760 | ||||
R0 | 59 (88.1%) | 13 (92.9%) | |||
R1 | 7 (10.4%) | 1 (7.1%) | |||
R2 | 1 (1.5%) | 0 (0) | |||
Number of resected LNs | 20 (2–57) | 16 (1–28) | 0.011 | 0.838 | 80.4% |
Number of resected LN stations | 7 (2–12) | 7 (1–10) | 0.856 | ||
Nodal upstaging | 13 (19.4%) | 4 (28.6%) | 0.685 | ||
Operation time (minutes) | 146 (87–410) | 145 (73–364) | 0.411 | ||
Blood loss (ml) | 100 (20–400) | 83 (10–500) | 0.819 | ||
Numerical pain rating scale | 2 (1–7) | 2 (1–3) | 0.005 | 0.676 | 62.2% |
Chest drainage (ml) | 1035 (150–5850) | 550 (30–2100) | 0.019 | 0.835 | 80.1% |
Duration of chest drainage (days) | 5 (2–20) | 4 (2–15) | 0.285 | ||
Complications | 20 (29.9%) | 3 (21.4%) | 0.729 | ||
GradeI | 9 (13.4%) | 1 (7.1%) | |||
GradeII | 9 (13.4%) | 2 (14.3%) | |||
GradeIII | 2 (3.0%) | 0 (0) | |||
Postoperative hospital stay (days) | 7 (4–21) | 6 (4–16) | 0.066 | ||
Mortality within 30 days | 0 (0) | 0 (0) | / | ||
Delay of adjuvant therapy (days) | 40 (21–127) | 36 (23–57) | 0.353 | ||
Protocol of Adjuvant therapy | 0.275 | ||||
Chemotherapy | 36 (53.7%) | 10 (71.4%) | |||
Radiotherapy | 6 (9.0%) | 0 (0) | |||
Chemoradiotherapy | 16 (23.9%) | 4 (28.6%) | |||
Unknown | 9 (13.4%) | 0 (0) | |||