Table 1.
Demographics, pathological and surgical variable in BMI groups of 551 patients under LH (operation details in the four groups)
| Total | Group1 | Group2 | Group3 | Group4 ≥ 28 kg/m2 | P value | |
|---|---|---|---|---|---|---|
| <18.5 kg/m2 | 18.5-23.9 kg/m2 | 24-27.9 kg/m2 | ||||
| N = 551 | N = 37 | N = 339 | N = 146 | N = 29 | ||
| Age (years) | 51.00 ± 12.69 | 47.46 ± 14.60 | 51.06 ± 12.82 | 51.71 ± 12.40 | 51.24 ± 9.65 | 0.340 |
| Female/Male | 311/240 | 26/11 | 186/153 | 83/63 | 16/13 | 0.355 |
| ASAI | 144 | 10 | 83 | 43 | 8 | 0.933 |
| ASAII | 377 | 25 | 237 | 96 | 19 | 0.601 |
| ASAIII | 29 | 2 | 19 | 6 | 2 | 0.637 |
| ASAIV | 1 | 0 | 0 | 1 | 0 | 0.905 |
| Diabetes | 20 | 1 | 13 | 5 | 1 | 0.985 |
| Operative time(min, mean ± SD) | ||||||
| 165.83 ± 93.63 | 179.97 ± 134.68 | 168.58 ± 91.41 | 159.22 ± 82.30 | 148.97 ± 109.90 | 0.424 | |
| Postoperative length of stay (min, mean ± SD) | ||||||
| 9.82 ± 6.25 | 8.24 ± 3.56 | 9.81 ± 6.07 | 9.76 ± 5.83 | 12.34 ± 10.92 | 0.068 | |
| Postoperative length of stay of conversion patients (min, mean ± SD) | ||||||
| 13.90 ± 7.6 | 8.20 ± 2.17 | 14.29 ± 7.20 | 12.68 ± 3.40 | 18.00 ± 13.91 | 0.002* | |
| Estimated blood loss (ml, mean ± SD) | ||||||
| 468.26 ± 62 | 448.65 ± 595.34 | 480.81 ± 621.91 | 424.01 ± 560.17 | 569.31 ± 920.84 | 0.179 | |
| Abdominal operation history | ||||||
| 174(31.58 %) | 13(37.14 %) | 103(30.38 %) | 49(33.56 %) | 9(31.03 %) | 0.457 | |
| Blood transfusion | 88(15.97 %) | 3(8.1 %) | 50(14.7 %) | 29 (19.9 %) | 6(20.7 %) | 0.240 |
| Complication | 66(11.98 %) | 8 (22.86 %) | 43(12.68 %) | 12 (8.22 %) | 3(10.34 %) | 0.142 |
| Severity of complication (Clavien -Dindo) | ||||||
| I–II/III–IV | 51/15 | 8/0 | 31/12 | 10/2 | 2/1 | 0.354 |
| Conversion | 72/551(13.1 %) | 5(13.50 %) | 39(11.5 %) | 19(13.0 %) | 9(31.0 %) | 0.030* |
| Type of surgery | ||||||
| Wedge resection | 119 | 7 | 68 | 33 | 11 | 0.388 |
| Segmenttectomy | 74 | 2 | 50 | 19 | 3 | 0.000* |
| Left lateral hepatectoy | 184 | 17 | 108 | 48 | 11 | 0.229 |
| Left hemihepatectomy | 144 | 10 | 92 | 39 | 3 | 0.000* |
| Right hemihepatectoy | 23 | 1 | 16 | 5 | 1 | 0.221 |
| Caudate hepatectomy | 7 | 0 | 5 | 2 | 0 | 0.088 |
| Diagnosis | ||||||
| Maliganmacy/Benign | 141/410 | 10/27 | 88/251 | 35/111 | 8/21 | 0.955 |
| Maliganmacy | ||||||
| Hepatocellular carcinoma | 99 | 5 | 64 | 25 | 5 | 0.613 |
| Metastatic hepatic | 23 | 2 | 13 | 6 | 2 | 0.941 |
| Carcinoma | 11 | 1 | 8 | 1 | 1 | 0.574 |
| Chalangiocarcinoma | 9 | 0 | 7 | 1 | 1 | 0.483 |
| Benign | ||||||
| Hepatic hemangioma | 162 | 10 | 95 | 45 | 12 | 0.341 |
| Intrahepatic stone | 191 | 15 | 117 | 53 | 6 | 0.503 |
| Focalnodularhyperplasa | 27 | 2 | 19 | 5 | 1 | 0.756 |
| Hepatic cyst | 13 | 1 | 6 | 6 | 0 | 0.376 |
| Adenoma | 8 | 1 | 4 | 2 | 1 | 0.702 |
| Others | 8 | 0 | 6 | 2 | 0 | 0.750 |
Values are presented as mean ± SD, median (percentage)
ASA American Society of Anesthesiology
*P<0.05