Table 1.
Baseline characteristics
| RH group (n = 33) | LH group (n = 24) | P value | |
|---|---|---|---|
| Clinical variables | |||
| Age | 66 (42–79) | 71 (53–83) | 0.047 |
| Sex (male) | 22 (66.6%) | 15 (62.5%) | 0.745 |
| BMI (kg/m2) | 23.2 (18.2–33.0) | 23.8 (20.2–34.9) | 0.702 |
| Bismuth type IV | 12 (36.4%) | 7 (29.2%) | 0.587 |
| Preoperative cholangitis | 14 (42.4%) | 8 (33.3%) | 0.486 |
| Preoperative biliary drainage | 29 (87.9%) | 22 (91.7%) | 1.000 |
| Portal vein embolization | 6 (18.2%) | 0 (0%) | 0.034 |
| Total bilirubin prior to surgery (mg/dL) | 1.30 (0.37–3.47) | 0.90 (0.47–2.76) | 0.281 |
| ICG R-15 (%) | 12.6 (3.0–19.7) | 12.5 (4.7–26.7) | 0.816 |
| CEA (ng/mL) | 1.4 (0.2–12.1) | 2.1 (0.5–33.1) | 0.198 |
| CA 19-9 (IU/mL) | 86.8 (7.9–7514.0) | 77.3 (1.1–10404.0) | 0.456 |
| Operative variables | |||
| Operation time (min) | 557 (415–975) | 525 (240–1127) | 0.189 |
| Portal vein resection | 9 (27.3%) | 2 (8.3%) | 0.097 |
| Transfusion | 13 (39.4%) | 9 (37.5%) | 0.885 |
| PHLF (≥ grade B) | 7 (21.2%) | 2 (8.3%) | 0.277 |
| Complication (≥ IIIA) | 14 (42.4%) | 10 (41.7%) | 0.954 |
| Hospital stay (days) | 20 (12–239) | 19 (8–171) | 0.862 |
| 90-day mortality | 3 (9.1%) | 1 (4.2%) | 0.631 |
| Pathologic variables | |||
| R0 resection | 25 (75.8%) | 18 (75.0%) | 0.948 |
| Tumor size (cm) | 3.5 (1.2–8.5) | 3.8 (0.8–7.0) | 0.733 |
| Differentiation (poorly) | 4 (13.8%) | 2 (11.8%) | 1.000 |
| Lymphovascular invasion | 15 (45.5%) | 14 (58.3%) | 0.337 |
| Perineural invasion | 25 (75.8%) | 19 (79.2%) | 0.762 |
| T stage (≥ T3) | 9 (27.3%) | 7 (29.2%) | 0.875 |
| N stage (≥ N1) | 15 (45.5%) | 6 (25.0%) | 0.114 |
Abbreviations: RH right-side hepatectomy, LH left-side hepatectomy, BMI body mass index, ICG R-15 indocyanine green retention rate at 15 min, PHLF post-hepatectomy liver failure
Values are presented as median (range) for continuous data and n (%) for categorical data