Table 3.
Tumor characteristics in patients with colorectal liver metastasis who underwent minor and major minimally invasive liver surgery (MILS)
| LLS n (% or SD) |
RLS n (% or SD) |
Total n (% or SD) |
|
|---|---|---|---|
| Tumor localization | |||
| Left hepatic lobe | 6 (46.2) | 6 (50.0) | 12 (48.0) |
| Right hepatic lobe | 3 (23.1) | 4 (33.3) | 7 (28.0) |
| Bilobar | 4 (30.8) | 2 (16.7) | 6 (24.0) |
| Number of lesions | |||
| 1 | 8 (61.5) | 6 (50.0) | 14 (56.0) |
| 2 | 3 (23.1) | 3 (25.0) | 6 (24.0) |
| 3 | 1 (7.7) | 1 (8.3) | 2 (8.0) |
| > 3 | 1 (7.7) | 2 (16.7) | 3 (12.0) |
| Time of occurrence | |||
| Synchronous | 6 (46.2) | 4 (33.3) | 10 (40.0) |
| Metachronous | 5 (38.5) | 8 (66.7) | 13 (52.0) |
| Missing data | 2 (15.4) | 0 (0.0) | 2 (8.0) |
| Size of tumor (cm) | 2.8 (1.9) | 4.2 (1.6) | 3.5 (1.8) |
| Preoperative chemotherapy | |||
| Yes | 10 (76.9) | 10 (83.3) | 20 (80.0) |
| No | 3 (23.1) | 1 (8.3) | 4 (16.0) |
| Missing data | 0 (0.0) | 1 (8.3) | 1 (4.0) |
| CEA (ng/ml) | 40.1 (51.8) | 171.5 (404.8) | 112.4 (303.1) |
LLS laparoscopic liver surgery, MILS minimally invasive liver surgery, CEA carcinoembryonic antigen, RLS robotic liver surgery, SD standard deviation