Table 1. General characteristics of the 138 pairs of patients underwent laparoscopic or open hemihepatectomy.
| Variables | LH group (n=138) | OH group (n=138) | P value |
|---|---|---|---|
| Age (years), mean ± SD | 56.6±8.8 | 56.5±9.1 | 0.572 |
| Gender | 1.000 | ||
| Male | 54 | 54 | |
| Female | 84 | 84 | |
| Procedure | 1.000 | ||
| Right hepatectomy | 40 | 40 | |
| Left hepatectomy | 98 | 98 | |
| Diagnosis | 1.000 | ||
| Hepatolithiasis | 96 | 96 | |
| Malignant tumor | 37 | 37 | |
| Benign tumor | 5 | 5 | |
| Liver cirrhosis | 1.000 | ||
| Yes | 18 | 18 | |
| No | 120 | 120 | |
| Child classification | 1.000 | ||
| A | 138 | 138 | |
| B | 0 | 0 | |
| Branch of portal vein invasion | 1.000 | ||
| Yes | 8 | 8 | |
| No | 130 | 130 | |
| Hepatic vein invasion | 1.000 | ||
| Yes | 2 | 2 | |
| No | 136 | 136 | |
| Preoperative TACE | 1.000 | ||
| Yes | 2 | 2 | |
| No | 136 | 136 | |
| Tumor size (n=42) (cm) | 6.7±3.2 | 7.6±3.8 | 0.236 |
| Number of lesions(n=42) | 0.070 | ||
| Single | 35 | 29 | |
| Multiple | 7 | 13 | |
| Number of comorbidities | |||
| Hypertension | 33 | 24 | 0.181 |
| Diabetes | 6 | 3 | 0.501 |
| Depression | 0 | 1 | 1.000 |
| Lung disease | 2 | 0 | 1.000 |
| Heart disease | 1 | 3 | 0.498 |
| ASA score | 1.000 | ||
| II | 134 | 134 | |
| III | 4 | 4 | |
| BMI (kg/m2), mean ± SD | 22.9±3.1 | 22.3±3.3 | 0.098 |
LH, laparoscopic hemihepatectomy; OH, open hemihepatectomy; SD, standard deviation; TACE, transarterial chemoembolization; ASA, American Society of Anesthesiologists; BMI, body mass index.