Table 3.
Intraoperative and postoperative characters of Precision group and Routine group.
| Variables | Precision group (N = 55) | Routine group (N = 55) | p Value |
|---|---|---|---|
| Operation time (min) | 74 ± 14.6 | 55 ± 17.8 | <0.01 |
| Intraoperative blood loss (ml) | 33 ± 7.5 | 28 ± 9.0 | 0.215 |
| Inadequate resection margins | 0 | 4 (7.3%) | 0.118 |
| Number of removed lymph nodes | 5 ± 1.1 | 3 ± 0.8 | <0.01 |
| Histological type | 0.108 | ||
| Adenocarcinoma in situ | 10 (18.2%) | 3 (5.5%) | |
| Microinvasive adenocarcinoma | 41 (74.5%) | 46 (83.6%) | |
| Invasive adenocarcinoma | 4 (7.3%) | 6 (10.9%) | |
| Chest tube duration days | 3.9 ± 1.7 | 3.7 ± 1.9 | 0.687 |
| Air leakage on POD1 | 31 (56.4%) | 19 (16.4%) | 0.020 |
| Postoperative hospital stay (days) | 4.4 ± 1.3 | 4.1 ± 2.2 | 0.619 |
| Postoperative complications | |||
| Air leakage (>7 days) | 2 (3.6%) | 3 (5.5%) | |
| Pneumonia | 0 | 1 (1.8%) | |
| Atrial fibrillation | 1 (1.8%) | 0 | |
| Hemoptysis (>10 ml) | 0 | 0 | |
| Total | 3 (5.5%) | 4 (7.3%) | 1.000 |
| Post-op FEV1 (L)* | 2.00 ± 0.53 | 1.89 ± 0.71 | 0.741 |
*Postoperative pulmonary functions were evaluated 1 month after surgery. POD, Postoperative Day. All patients’ air leakage on POD1 were under grade II.