Interventions: LMH
tumour
PNEUMOPERITONEUM, TUMOUR
For the LMH group, the patient will be placed in a left semi-decubitus position. Pneumoperitoneum will be created by carbon dioxide insufflation and the intra-abdominal pressure maintained at 13–15 mmHg. In addition to the camera port (10 mm), two 12-mm and two 5-mm ports will be used and adjusted according to tumour location and extent of resection. Laparoscopic ultrasonography will be used to confirm tumour location and guide liver transection. The extent of resection will depend on tumour location. Cholecystectomy will be performed. The anterior approach for major hepatectomy will be routinely adopted