Table 2 Perioperative and pathologic characteristics
Before matching | After matching | |||||
|---|---|---|---|---|---|---|
Open (n = 80) | Laparoscopic (n = 40) | P-value | Open (n = 37) | Laparoscopic (n = 37) | P-value | |
Perioperative | ||||||
Operative time (min) | 239 (99–599) | 267 (141–509) | 0.005 | 239 (99–599) | 267 (141–509) | 0.129 |
Blood loss (mL) | 300 (100–1700) | 275 (50–2000) | 0.230 | 300 (100–1700) | 250 (50–2000) | 0.468 |
RBC transfusion | 2 (2.5%) | 3 (7.5%) | 0.332 | 2 (5.4%) | 2 (5.4%) | 0.337 |
RBC transfusion (unit) | 2.5 (1–4) | 2 (1–2) | 0.201 | 2.5 (1–4) | 1.5 (1–2) | 0.375 |
Hospitalization (days) | 13 (6–71) | 9 (5–21) | < 0.001 | 13 (6–45) | 9 (5–21) | < 0.001 |
Pathologic | ||||||
Tumor size (cm) | 4.2 (0.9–14) | 2.6 (0.6–11.5) | < 0.001 | 2.8 (1.1–10) | 2.8 (0.9–11.5) | 0.225 |
Free resection margin (mm) | 10 (1–60) | 15 (1–65) | 0.173 | 13 (1–50) | 15 (1–65) | 0.476 |
Tumor necrosis | 38 (47.5%) | 13 (32.5%) | 0.170 | 15 (40.5%) | 12 (32.4%) | 0.466 |
Tumor hemorrhage | 46 (57.5%) | 18 (45.0%) | 0.245 | 17 (46.0%) | 16 (43.2%) | 0.808 |
Encapsulation | 0.598 | 0.292 | ||||
None | 5 (6.3%) | 4 (10.3%) | 2 (5.4%) | 4 (11.1%) | ||
Partial | 20 (25.3%) | 11 (28.2%) | 9 (24.3%) | 10 (27.8%) | ||
Complete | 54 (68.4%) | 24 (61.5%) | 26 (70.3%) | 22 (61.1%) | ||
Microvascular invasion | 64 (81.0%) | 24 (61.5%) | 0.027 | 25 (67.6%) | 23 (63.9%) | 0.730 |
PVTT | 12 (15.2%) | 5 (12.8%) | 1.000 | 3 (8.1%) | 4 (11.1%) | 0.680 |
BDTT | 4 (5.1%) | 0 (0%) | 0.301 | 3 (8.1%) | 0 (0%) | 1.000 |
Serosal involvement | 2 (2.5%) | 0 (0%) | 1.000 | 0 (0%) | 0 (0%) | 1.000 |
Intrahepatic metastasis | 9 (11.4%) | 3 (7.7%) | 0.749 | 4 (10.8%) | 2 (5.6%) | 0.440 |
Multicentric occurrence | 4 (5.1%) | 1 (2.6%) | 1.000 | 2 (5.4%) | 1 (2.8%) | 0.586 |
Cirrhosis | 33 (41.8%) | 18 (46.2%) | 0.696 | 20 (54.1%) | 15 (41.7%) | 0.260 |