Table 1.
Patient Demographics, Indications for Liver Surgery, and Clinical Characteristics
| Variable | Robotic (n = 19) | Open (n = 69) | P |
|---|---|---|---|
| Demographics | |||
| Age, y | 62.6 ± 10.4 | 63.2 ± 11.5 | .40 |
| Men | 12 (63.2%) | 42 (60.9%) | .30 |
| BMI, kg/m2 | 28.6 ± 4.6 | 24.6 ± 4.3 | .60 |
| ASA class 3 | 4 (21.1%) | 6 (10.7%) | .10 |
| Indications for surgery | .002 | ||
| Colorectal liver metastases | 13 (68.4%) | 46 (67.6%) | |
| HCC | 1 (5.3%) | 15 (22.1%) | |
| Benign | 1 (5.3%) | 7 (10.3%) | |
| Cholangiocarcinoma | 1 (5.3%) | 0 | |
| Others | 3 (15.8%) | 0 | |
| Nodule number | 1.7 ± 1.3 | 1.3 ± 0.6 | .10 |
| Nodule dimension, cm | 4.1 ± 2.6 | 4.1 ± 3 | .60 |
| Nodule site | .02 | ||
| Segment 6 | 3 (15.8%) | 21 (30.4%) | |
| Segment 7 | 11 (57.9%) | 16 (23.2%) | |
| Segments 6–7 | 5 (26.3%) | 27 (39.1%) | |
| Previous abdominal surgery | 5 (26.3%) | 46 (66.7%) | .002 |
| Neoadjuvant chemotherapy | 8 (42.1%) | 37 (60.7%) | .10 |
Data are expressed as mean ± SD or as number (percentage).
Abbreviations: ASA, American Society of Anesthesiologists; BMI, body mass index; HCC, hepatocellular carcinoma.