关键词: font-family:宋体, ">二步分层法；腹腔镜；左半肝切除术

Abstract: Objective： To observe the effect of two-step stratification method in laparoscopic left hemihepatectomy. Methods： Clinical data of 77 patients who underwent laparoscopic left hemihepatectomy in Qujing Hospital Affiliated to Kunming Medical University from May 2015 to December 2019 were analyzed retrospectively. According to the operation method， the patients were divided into the control group and the observation group. The illness index and data of the two groups of patients were compared， including the operation time， intraoperative bleeding， abdominal drainage time， anal exhaust time， hospital stay， serum alanine aminotransferase （ALT）， aspartate aminotransferase （AST） levels and complications. Results： Compared with the control group， the operation time of the observation group was significantly shortened， the amount of intraoperative bleeding was significantly reduced， and the levels of serum ALT and AST were significantly reduced after operation， and the differences were statistically significant （P<0.05）. There were no significant differences in the total incidence of complications and tumor recurrence rate during the follow-up period after operation between the two groups （P>0.05）. Conclusion： The application of two-step stratification method in laparoscopic left hemihepatectomy can achieve the same therapeutic effect as traditional hemihepatectomy. It can reduce the operation time and the amount of bleeding without increasing the incidence of complications and tumor recurrence. It is worthy of clinical application.

Key words: two-step stratification method, laparoscope, left hemihepatectomy