Table 1 Patient characteristics, intra- and postoperative outcome
VATS (n = 63; 25.1%) | Thoracotomy (n = 188; 74.9%) | P-value | |
|---|---|---|---|
Age (mean ± SD) [years] | 64.9 ± 11.9 | 60.4 ± 12.2 | 0.93 |
Male gender; n (%) | 42 (66.7%) | 124 (66%) | 0.92 |
Metastasis | |||
- Solitary; n (%) | 54 (85.7) | 104 (55.3) | < 0.001* |
- Multiple; n (%) | 9 (14.3) | 84 (44.7) | |
- Synchronous; n (%) | 6 (9.5) | 15 (8) | 0.70 |
- Metachronous; n (%) | 57 (90.5) | 173 (92) | |
- No extrapulmonary metastases; n (%) | 41 (65.1) | 130 (69.1) | 0.08 |
- Treated extrapulmonary metastases; n (%) | 19 (30.2) | 57 (30.3) | |
- Extrapulmonary metastases without treatment; n (%) | 2 (3.2) | 0 (0) | |
- Extrapulmonary metastases, unknown treatment; n (%) | 1 (1.6) | 1 (0.5) | |
Mean disease-free interval between primary tumor and pulmonary metastasis (metachronic metastases only) (mean ± SD) [month] | 57.3 ± 72.2 | 47 ± 54.0 | 0.022* |
Systematic lymph node dissection; n (%) | 28 (44.4) | 160 (85.1) | < 0.001* |
Lymph node sampling; n (%) | 10 (15.9) | 17 (9) | 0.13 |
Lymph node status | |||
- pN0; n (%) | 37 (58.7) | 148 (78.7) | < 0.001* |
- pN1; n (%) | 0 (0) | 5 (2.7) | |
- pN2; n (%) | 1 (1.6) | 23 (12.2) | |
- pN3; n (%) | 0 (0) | 1 (0.5) | |
- cN0; n (%) | 25 (39.7) | 11 (5.9) | |
Postoperative stay (mean ± SD) [days] | 6.7 ± 2.5 | 10.1 ± 4.9 | < 0.001* |
Required surgical revision; n (%) | 0 (0) | 9 (4.8) | 0.08 |
In-hospital mortality; n (%) | 0 (0) | 1 (0.5) | 0.56 |