• Zheng-Yan Li, Yan-Bing Zhou, Tai-Yuan Li, Ji-Peng Li, Zhi-Wei Zhou, Jun-Jun She, Jian-Kun Hu, Feng Qian, Yan Shi, Yu-Long Tian, Geng-Mei Gao, Rui-Zi Gao, Cheng-Cai Liang, Fei-Yu Shi, Kun Yang, Yan Wen, Yong-Liang Zhao, Pei-Wu Yu, and Robotic, Laparoscopic Surgery Committee of Chinese Research Hospital Association.
• Department of General Surgery, Center for Minimally Invasive Gastrointestinal Surgery, Southwest Hospital, Third Military Medical University, Chongqing, China.
• Ann. Surg. 2023 Jan 1; 277 (1): e87e95e87-e95.

ObjectiveA large-scale multicenter retrospective cohort study was conducted to compare the short- and long-term outcomes of robotic gastrectomy (RG) and laparoscopic gastrectomy (LG) for gastric cancer.Summary Of Background DataRG is being increasingly used worldwide, but data from large-scale multicenter studies on the short- and long-term oncologic outcomes of RG versus LG are limited. The potential benefits of RG compared with LG for gastric cancer remain controversial.MethodsData from eligible patients who underwent RG or LG for gastric cancer of 11 experienced surgeons from 7 centers in China between March 2010 and October 2019 were collected. The RG group was matched 1:1 with the LG group by using propensity score matching. The primary outcome was postoperative complications.ResultsAfter propensity score matching, a well-balanced cohort of 3552 patients was included for further analysis. The occurrence of overall complications (12.6% vs 15.2%, P = 0.023) was lower in the RG group than in the LG group. RG was associated with less blood loss (126.8 vs 142.5 mL, P < 0.001) and more retrieved lymph nodes in total (32.5 vs 30.7, P < 0.001) and in suprapancreatic areas (13.3 vs 11.6, P < 0.001).The long-term oncological outcomes were comparable between the two groups.ConclusionsThe results of this multicenter study demonstrate that RG is a safe and effective treatment for gastric cancer when performed by experienced surgeons, although longer operation time and higher costs are still concerns about RG. This study provides evidence suggesting that RG may represent an alternative surgical treatment to LG.Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.

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