Comparison of perioperative efficacy between laparosopic-like"3-arm+2-port"model and traditional"4-arm+1-port"model in robot-assisted radical distal gastrectomy based on propensity score matching
SHEN Xiao-yao
ZHANG Ye-qian
ZHANG Pu-hua
ZHAO En-hao
ZHU Chun-chao
WANG Zheng
CAO Hui
XIA Xiang
ZHANG Zi-zhen
Abstract：Objective To explore the advantages of the"3-arm+2-port(3+2)"model over the traditional"4-arm+1-port(4+1)"model in da Vinci robot-assisted radical distal gastrectomy for gastric cancer.Methods A retrospective analysis was conducted on 192 patients who underwent da Vinci robot-assisted radical gastrectomy for gastric cancer at Renji Hospital,Shanghai Jiao Tong University School of Medicine from March 1st,2023,to November 30th,2024.After propensity score matching(PSM)at a ratio of 1∶2,perioperative variables were compared between the two groups.Results After PSM,compared to the traditional"4+1"group,the laparoscopic-like"3+2"group showed shorter overall operation time[(221.1±32.93)min vs.(244.9±27.77)min],omentectomy time[(19.5±1.86)min vs.(26.1±3.28)min],lymph node dissection time for No.11p,8a,7,and 9[(20.8±2.18)min vs.(22.3±4.01)min],No.1 and 3[(21.1±1.33)min vs.(23.4±5.73)min],setup time[(10.5±1.05)min vs.(12.2±1.81)min],and organ retraction and adjustment time[(11.5±1.05)min vs.(13.2±1.73)min].Moreover,the laparoscopic-like"3+2"model group avoided switching between activation and locking of the same-side robotic arms[(0±0.0)times vs.(161±53.2)times,P＜0.001],and had a higher number of dissected No.4sb lymph nodes[(5.4±1.31)vs.(4.7±1.46)],with all differences being statistically significant(P＜0.05).Additionally,the laparoscopic-like"3+2"group had lower consumable costs[(34956.1±2835.19)CNY vs.(38688.9±1478.61)CNY],with differences being statistically significant(P＜0.05).Conclusion The laparoscopic-like"3+2"model for Da Vinci robot-assisted radical distal gastrectomy not only reduces economic costs and improves surgical efficiency but also offers advantages such as shortening the learning curve,reducing surgical difficulty,and facilitating better cooperation among surgeons.
Keywords：Stomach neoplasmsdistal gastrectomyrobot-assisted surgeryoperative time
Publication Date：2025-01-31
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 109-112,120 )