Comparative Study On The Short-term Efficacy And Safety Of Robotic And Laparoscopic Radical Gastrectomy For Distal Gastric Cancer

Objective: To compare and analyze the surgical situation and short-term efficacy of distal gastrectomy for distal gastric cancer between robotic and laparoscopic radical gastrectomy with propensity score matching.To investigate the efficacy and safety of robotic distal gastric cancer resection.Methods: A total of 256 patients undergoing distal gastric cancer radical resection from June 2016 to October 2019 were enrolled,including 123 patients in the robotic group and 113 patients in the laparoscopic group.We used a propensity score matching(PSM)analysis to compare surgical outcomes and near-term outcomes between robotic distal radical gastrectomy(RDG)and laparoscopic distal radical gastrectomy(LDG)to reduce confounding differences.After 1:1propensity score matching,86 matched patients were compared and analyzed.Results: 1.Short-term efficacy: The analysis results were as follows:The operative time before PSM,intraoperative blood loss,positive number of lymph nodes and total hospitalization cost were significantly different between the laparoscopic group and the robotic group(P < 0.05).However,there was no statistical significance in the number of lymph node dissection after PSM(P > 0.05),but there was statistical significance in the operative time,intraoperative blood loss and total hospitalization cost between the two groups(P < 0.05).2.Postoperative complications in the two groups were statistically analyzed according to the Clavien-Dindo classification,although the incidence of complications in the laparoscopic group was slightly higher than that in the robot group regardless of the matching.There was no significant difference in the incidence of complications between the two groups and the incidence of complications of different grades.3.There were statistically significant differences in the number of lymph node dissection,intraoperative blood loss and operation time between patients with high BMI and those with conventional BMI(P <0.05);Conclusions: Robot-assisted radical gastrectomy for distal gastric cancer is feasible and safe in terms of short-term surgical results.