Table 3. Perioperative parameters of the patients.
| Variables | Control group (n=35) | 3D-CTBA group (n=153) | P value | |||
|---|---|---|---|---|---|---|
| A (n=30) | B (n=30) | C (n=30) | D (n=63) | |||
| Lymph node harvested | ||||||
| Dissection/sampling, n | 25/10 | 29/1 | 25/5 | 26/4 | 53/10 | 0.092 |
| Stations | 4.4±1.4 | 3.9±1.5 | 4.3±1.3 | 4.9±1.3 | 4.3±1.3 | 0.059 |
| Numbers | 7.7±2.8 | 7.3±2.6 | 7.5±3.6 | 8.1±2.2 | 7.9±3.1 | 0.797 |
| Operation time, min | 86.1±17.9* | 109.8±25.4 | 79.7±11.1* | 77.0±12.1* | 69.3±16.0*,# | <0.001 |
| Blood loss, mL | 85.3±28.2 | 78.7±28.1 | 82.7±28.4 | 74.8±14.6 | 76.1±14.7 | 0.237 |
| Chest tube drainage | ||||||
| Duration, days | 2.7±1.6* | 3.7±2.2 | 3.0±0.9* | 2.7±1.6* | 2.6±0.8* | 0.004 |
| Total volume, mL | 334.3±165.3 | 406.7±159.6 | 333.3±171.4 | 341.7±160.3 | 384.9±166.5 | 0.224 |
| Postoperative complications, n | 5 | 3 | 6 | 3 | 12 | 0.673 |
| Chylothorax, n | 0 | 1 | 2 | 1 | 3 | |
| Atelectasis, n | 0 | 0 | 1 | 0 | 2 | |
| Air leak >7 days, n | 1 | 0 | 0 | 1 | 1 | |
| Bronchopleural fistula, n | 1 | 0 | 0 | 0 | 0 | |
| Arrhythmia, n | 3 | 2 | 3 | 1 | 6 | |
| Postoperative hospital stay, days | 2.8±1.8* | 3.9±2.3 | 3.0±1.0* | 2.8±1.8* | 2.6±0.8* | 0.002 |
| Pain VAS on 14th POD | 2.9±0.8 | 2.8±0.7 | 2.9±0.7 | 2.5±0.8 | 2.8±0.7 | 0.164 |
Continuous data was shown as mean ± SD, and the categorical data were shown as number (%). *, P<0.01, as compared with group A; #, P<0.05, as compared with group B. SD, standard deviation; 3D-CTBA, three-dimensional computed tomography bronchography and angiography; VAS, visual analog scale; POD, postoperative day.