Table 3. Operative and postoperative characteristics of HCC patients classified according to AT VO2 change.
| Variables | Maintenance (n = 78) |
Decrease (n = 28) |
P | ||
|---|---|---|---|---|---|
| Tumor number | 0.266 | ||||
| 1 | 54 | (69%) | 23 | (82%) | |
| 2 | 16 | (21%) | 2 | (7%) | |
| ≥3 | 8 | (10%) | 3 | (11%) | |
| Tumor size, cm | 3.0 | (2.0, 4.0) | 3.1 | (2.2, 5.3) | 0.680 |
| Degree of differentiation | 0.217 | ||||
| Well | 20 | (26%) | 11 | (39%) | |
| Moderately | 47 | (60%) | 16 | (57%) | |
| Poorly | 0 | (0%) | 0 | (0%) | |
| Necrosis or unknown | 11 | (14%) | 1 | (4%) | |
| fc | 0.810 | ||||
| Absent | 22 | (28%) | 7 | (25%) | |
| Present | 56 | (72%) | 21 | (75%) | |
| vp and/or vv | 0.821 | ||||
| Negative | 28 | (36%) | 11 | (39%) | |
| Positive | 50 | (64%) | 17 | (61%) | |
| sm | 0.377 | ||||
| Negative | 74 | (95%) | 25 | (89%) | |
| Positive | 4 | (5%) | 3 | (11%) | |
| Underlying liver disease | 0.778 | ||||
| Chronic hepatitis | 41 | (53%) | 17 | (61%) | |
| Cirrhosis | 27 | (35%) | 8 | (29%) | |
| Normal | 10 | (13%) | 3 | (11%) | |
| Tumor stage | 0.484 | ||||
| I | 11 | (14%) | 6 | (21%) | |
| II | 37 | (47%) | 9 | (32%) | |
| III | 24 | (31%) | 10 | (36%) | |
| IVa | 6 | (8%) | 3 | (11%) | |
| Operative procedure | 0.250 | ||||
| Anatomical resection | 53 | (68%) | 15 | (54%) | |
| Non-anatomical resection | 25 | (32%) | 13 | (46%) | |
| Amount of hepatic resection | 0.810 | ||||
| Less than hemihepatectomy | 56 | (72%) | 21 | (75%) | |
| More than hemihepatectomy | 22 | (28%) | 7 | (25%) | |
| Operating time, min | 353 | (270, 408) | 305 | (230, 416) | 0.162 |
| Operative blood loss, ml | 712 | (378, 1137) | 569 | (265, 1061) | 0.396 |
| Postoperative hospital stay, days | 12 | (11, 15) | 12 | (10, 15) | 0.484 |
| Blood transfusion | 0.741 | ||||
| Absent | 69 | (88%) | 24 | (86%) | |
| Present | 9 | (12%) | 4 | (14%) | |
| Complications | 1.000 | ||||
| Absent | 70 | (90%) | 26 | (93%) | |
| Present | 8 | (10%) | 2 | (7%) | |
| Mortality | - | ||||
| Absent | 78 | (100%) | 28 | (100%) | |
| Present | 0 | (0%) | 0 | (0%) | |
Data are shown as median (5th percentile, 95th percentile) or n (%).
AT, anaerobic threshold; VO2, oxygen consumption; fc, capsule formation; vp, portal vein invasion; vv, hepatic vein invasion; sm, surgical margin.