Comparison of laparoscopic liver resection for hepatocellular carcinoma located in the posterosuperior segments or anterolateral segments: A case-matched analysis

Abstract

Laparoscopic liver resection is an attractive option for treating liver tumors. Laparoscopic liver resection is more difficult for hepatocellular carcinomas located in the posterosuperior segments than for hepatocellular carcinomas in the anterolateral segments. We compared perioperative and long-term outcomes between laparoscopic liver resection for hepatocellular carcinomas located in the posterosuperior and anterolateral segments. We retrospectively reviewed the clinical data for 230 patients who underwent laparoscopic liver resection for hepatocellular carcinomas between September 2003 and July 2014. Of these, 116 patients were selected by case-matched analysis using age, sex, tumor number and size, Child-Pugh class, and extent of liver resection. Patients were classified into 2 groups according to tumor location: the anterolateral group (n=58) and the posterosuperior group (n=58). Operation time (355minutes vs 212minutes, P<.005), intraoperative blood loss (600mL vs 410mL, P<.001), and hospital stay (8.5days vs 7days, P=.040) were significantly greater in the posterosuperior group than in the anterolateral group. The open conversion (13.8% vs 10.3%, P=.777), postoperative complication (17.2% vs 10.3%, P=.420), 5-year overall survival (88.5% vs 85.7%, P=.370), and 5-year, recurrence-free survival (47.6% vs 40.9%, P=.678) rates were not significantly different between the posterosuperior and anterolateral groups. Although laparoscopic liver resection is more difficult for hepatocellular carcinomas located in the posterosuperior segment, there were no differences in the short- and long-term outcomes between the posterosuperior and anterolateral groups. The perceived impact of tumor location on patient outcomes could be overcome by experience and technical improvements.