Table 3 Comparison of operative and postoperative outcomes between the aBVA and VAB cohorts
Variable | Total (n = 301) | aBVA cohort (n = 109) | VAB cohort (n = 192) | P |
|---|---|---|---|---|
Average operation time (min, mean ± SD) | 198.75 ± 74.73 | 164.08 ± 54.52 | 221.11 ± 77.55 | <0.001 |
Estimated blood loss (mL, mean ± SD) | 122.83 ± 145.62 | 91.74 ± 80.09 | 141.25 ± 170.68 | <0.001 |
Conversion to thoracotomy [cases (%)] | 22 (7.31) | 0 (0) | 22 (11.46) | <0.001 |
Duration of chest drainage (days, mean ± SD) | 4.13 ± 4.03 | 3.55 ± 2.82 | 4.45 ± 4.55 | 0.001 |
Postoperative hospitalization (days, mean ± SD) | 8.20 ± 6.16 | 7.73 ± 4.40 | 8.46 ± 6.96 | 0.209 |
Total number of patients developing postoperative complications [cases (%)] | 71 (23.6) | 24 (22.0) | 47 (24.5) | 0.629 |
Procedure-specific complications [cases (%)]a | 56 (18.6) | 18 (16.5) | 38 (19.8) | 0.482 |
 Prolonged air leakage >7 days | 23 (7.6) | 7 (6.4) | 16 (8.3) | 0.549 |
 Serious hemorrhage | 17 (5.6) | 6 (5.5) | 11 (5.7) | 0.935 |
 Atelectasis requiring sputum suction via bronchoscopy | 14 (4.7) | 3 (2.8) | 11 (5.7) | 0.239 |
 Subcutaneous emphysema | 12 (4.0) | 4 (1.3) | 8 (4.2) | 0.752* |
 Pneumothorax | 10 (3.3) | 3 (2.8) | 7 (3.6) | 1.000* |
 Chylothorax | 4 (1.3) | 3 (2.8) | 1 (0.5) | 0.137* |
Non-procedure-specific complications [cases (%)]a | 30 (10.0) | 9 (8.3) | 21 (10.9) | 0.456 |
 Pneumonia | 16 (5.3) | 7 (6.4) | 9 (4.7) | 0.519 |
 Atrial fibrillation | 6 (2.0) | 1 (0.9) | 5 (2.6) | 0.423* |
 Pulmonary artery embolism | 4 (1.3) | 0 (0) | 4 (2.1) | 0.300* |
 Stroke | 2 (0.7) | 1 (0.9) | 1 (0.5) | 1.000* |
 Acute myocardial infarction | 1 (0.3) | 0 (0) | 1 (0.5) | 1.000* |
 Other reasons delaying discharge | 5 (1.7) | 0 (0) | 5 (2.6) | 0.163* |
Surgical costs (10,000 Yuan, mean ± SD) | 4.03 ± 0.93 | 3.85 ± 0.84 | 4.13 ± 0.96 | 0.003 |
Hospitalization costs (10,000 Yuan, mean ± SD) | 6.89 ± 3.27 | 6.52 ± 1.71 | 7.10 ± 3.88 | 0.176 |