Abstract: Objective To explore the clinical value of laparoscopic cholecystectomy in preserving the deep branch of gallbladder artery.
Methods From March 2016 to March 2019，150 patients with gallbladder disease were selected，all of whom were confirmed to have deep branches of gallbladder artery during operation，and they were sorted in order.They were randomly divided into observation group and control group according to odd and even method.Each group had 75 cases in each group.In the observation group，the deep branches of gallbladder artery were carefully separated and preserved during the operation.In the control group，the deep branches of the gallbladder artery were clamped .The two groups were followed up for 12 weeks.The liver function indexes，abdominal distention and abdominal pain were compared at 2，4 and 12 weeks postoperatively，and the quality of life of the patients in the two groups were compared at 4 weeks postoperatively.
Results The two groups were cured.Compared with the control group，the operation time of the observation group was longer than that of the control group，and the amount of intraoperative bleeding was relatively more，the difference was statistically significant（P<0.05），and there was no significant difference in the length of stay between the two groups（P>0.05）.The levels of AST，ALT and TBIL in the observation group were significantly lower than those in the control group at 2 weeks，4 weeks after operation（P<0.05）.There was no significant difference in the level of AST，ALT and TBIL between the two groups at 12 weeks（P>0.05）.The incidence of abdominal pain and abdominal distention was significantly less at 2 weeks and 4 weeks（P<0.05），but the incidence of abdominal pain and abdominal distention was similar at 12 weeks（P>0.05）.The quality of life score of the observation group was significantly higher than that of the control group ，after 4 weeks（P<0.05）.
Conclusion Keeping the deep branch of gallbladder artery in laparoscopic cholecystectomy is helpful to accelerate the recovery and reduce the incidence of abdominal pain and distention.

Key words:  laparoscopy; , cholecystectomy, deep branch of gallbladder artery