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Background  Liver tumours between the root angle of the middle and right hepatic veins are a special type of liver segment VIII tumour. In this study, we designed a modified median hepatic fissure approach to remove these tumours. The safety and effectiveness of the approach were evaluated.    Materials and methods   From April 2015 to November 2019, 11 patients with liver tumours between the angle of the middle and right hepatic veins underwent this modified median hepatic fissure approach. We retrospectively analysed data from the perioperative periods of these 11 patients, including general condition, operation time, intraoperative bleeding, and postoperative complications. Disease-free survival and overall survival were assessed.    Results  Of the 11 patients, 9 patients had primary hepatocellular carcinoma and 2 had colorectal liver metastases. The average intraoperative blood loss was 285 mL (150–450 mL). Two patients developed postoperative bile leakage, but there were no significant serious complications, such as intraabdominal bleeding and liver failure, in any of the patients. The liver function returned to the normal range on the 5th day after surgery. Of the 11 patients, 5 have survived for more than 3 years (45.5%), and 4 have been disease-free for more than 3 years (36.3%).    Conclusions  For liver tumours between the root angle of the middle and right hepatic veins, the modified median hepatic fissure approach is a safe and feasible method.

Modified median hepatic fissure approach for resection of liver tumours located in the angle between the root of the middle and right hepatic veins