Table 1.
Characteristics of the 90 patients included.
| Variable | Number (percentage) |
|---|---|
| Origin | |
| Rectum | 56 (62.2%) |
| Colon | 34 (37.8%) |
| Age | |
| <65 years | 38 (42.2%) |
| >65 years | 52 (57.8%) |
| Median: 65.7 (range: 40–82), DT: 8.7 | |
| Associated comorbidity | |
| Absent | 38 (42.2%) |
| Present | 52 (57.8%) |
| Preoperative level of carcinoembryonic antigen | |
| Negative | 55 (61.1%) |
| Positive | 24 (26.7%) |
| Not measured | 11 (12.2%) |
| Previous liver metastasis | |
| No | 73 (81.1%) |
| Yes | 17 (18.9%) |
| Disease-free interval | |
| <12 months | 12 (13.3%) |
| >12 months | 78 (86.7%) |
| Mean: 39.9 (range: 0–181.6), SD: 29.7 | |
| Access | |
| VATS | 7 (6.4%)a |
| Thoracotomy | 103 (93.6%)a |
| Lymph node involvement | |
| No | 98 (89.1%)a |
| Yes | 12 (10.9%)a |
| Size | |
| <1 cm | 13 (11.8%)a |
| >1 cm | 97 (88.2%)a |
| Number of metastases | |
| 1 | 88 (80.0%)a |
| >1 | 22 (20.0%)a |
| Laterality of the metastases | |
| Right | 60 (54.5%)a |
| Left | 50 (45.5%)a |
| Type of resection | |
| Atypical | 55 (50.0%)a |
| Lobectomy | 39 (35.5%)a |
| Lobectomy + atypical | 6 (5.5%)a |
| Bilobectomy | 1 (0.9%)a |
| Pneumonectomy | 5 (4.5%)a |
| Lobectomy with chest wall resection | 4 (3.6%)a |
aAs a percentage of the 110 surgical interventions performed. VATS: video-assisted thoracic surgery.