Table 3.
Surgical characteristics in each group (initial and second pulmonary metastasectomy)
| Characteristics | The initial pulmonary metastasectomy (n = 126) | The second pulmonary metastasectomy (n = 26) | p value | |
|---|---|---|---|---|
| Operation, n (%) | Partial resection | 65 (51.6) | 8 (30.8) | 0.09 |
| Segmentectomy | 31 (24.6) | 11 (42.3) | ||
| Lobectomy | 30 (23.8) | 5 (19.2) | ||
| VATS | 106 (84.1) | 17 (65.4) | 0.12 | |
| Open | 20 (15.9) | 7 (26.9) | ||
| Operation time (min), median [range] | 163 [40–645] | 217 [62–505] | 0.15 | |
| Intraoperative blood loss (ml), median [range] | 10 [0–1130] | 20 [0–220] | 0.008** | |
| Preoperative %VC (%), median [range] | 109.8 [56.7–154] | 109.0 [56.4–147] | 0.23 | |
| Preoperative FEV1.0% (%), median [range] | 74.9 [46.8–102.6] | 72.7 [59.8–97.1] | 0.99 | |
| Preoperative respiratory dysfunction, n (%) | Absent | 77 (61.1) | 13 (50.0) | 0.91 |
| Present | 44 (34.9) | 10 (38.5) | ||
| Restrictive | 4 (3.2) | 2 (7.7) | ||
| Obstructive | 39 (31.0) | 8 (30.8) | ||
| Mixed | 1 (0.8) | 0 (0.0) | ||
|
Postoperative complication (≧ CDa-grade2), n (%) |
Yes | 5 (3.9) | 0 (0.0) | 0.32 |
| No | 115 (91.3) | 24 (92.3) | ||
|
Fistula 2 (1.6) Pneumonia 1 (0.8) Air leakage 1 (0.8) Pleural effusion 1 (0.8) |
– | |||
| Postoperative mortality, n (%) | 0 (0.0) | 0 (0.0) | – | |
| Hospital stay (day), median [range] | 7 [2–55] | 8 [3–19] | 0.51 | |
VATS Video-assisted thoracic surgery, %VC percent vital capacity, FEV1.0% forced expiratory volume percent in 1 s
a Clavien-Dindo classification
*p < 0.05; **p < 0.01; ***p < 0.001