Clinical efficacy of laparoscopic versus open hepatectomy for the treatment of hepatocellular carcinoma

Abstract

Objective To evaluate the clinical efficacy of laparoscopic hepatectomy and open hepatectomy for the treatment of hepatocellular carcinoma. Methods Two hundred and sixteen patients with hepatocellular carcinoma who were admitted to the Chongqing Three Gorges Central Hospital from October 2014 to December 2017 were enrolled in this study, 52 patients undergoing laparoscopic hepatectomy (laparoscopic group) and 164 patients undergoing open hepatectomy, 52 patients(open group) were matched by propensity score matching method to reduce confounding bias. The operation time, tumor sizes, resection margin, time of hepatic inflow occlusion, volume of blood loss, blood transfusion, postoperative complication rate, drainage tube removal time, postoperative anal exhaust time, duration of postoperative hospital stay and survival rates were compared. T test was used for the measurement data in line with the normal distribution, and the results were represented by (Mean±SD) tandard deviation; Wilcoxon test was used for the measurement data in the skewed distribution, and M(range) was used for represention, and the chi-square test or Fisher′s exact probability test was used for the counting data. Kaplan-meier method was used to describe the survival curve, and log-rank test was used to compare the survival rate. Cox regression model was used to evaluate the risk factors affecting the survival of patients with hepatocellular carcinoma. Results All patients were recovered with no perioperative death. The operation time, tumor sizes, resection margin, time of hepatic inflow occlusion were (226.1±67.5) min, (49.2±15.5) mm, (14.3±4.9) mm, (34.1±18.1) min and (227.0±55.7) min, (49.4±16.6) mm, (14.6±4.0) mm, (38.2±16.1) min, with no significant differences between the two groups(P>0.05). The volume of blood loss, blood transfusion, postoperative complication rate, drainage tube removal time, postoperative anal exhaust time, duration of postoperative hospital stay were 325(50-1 200) ml, 11.5%, 15.4%, (4.8±0.9) d, 3(2-5) d, (11.9±3.5) d and 375(100-2 000) ml, 19.2%, 23.1%, (5.9±0.8) d, 4(3-5) d, (14.9±6.2) d, with significant differences between the 2 groups(P 0.05). Cox regression analysis revealed that ICG R15, tumor size and tumor differentiation were independent risk factors of survival(hazard ratio>1, P<0.005). Conclusions Application of Laparoscopic hepatectomy for the treatment of selective hepatocellular carcinoma patients has better short-term efficacy than open hepatectomy and long-term efficacy is comparably. The propensity score matching can reduce confounding bias and have value for clinical research. Key words: Carcinoma, hepatocellular; Hepatectomy; Laparoscopes