Study on the Safety and Effectiveness of Using Modified Tubular Stomach for Sideoverlap Anastomosis in Laparoscopic Proximal Gastrectomy

<b><i>Background:</i></b> The research on laparoscopic proximal gastrectomy has focused on effective methods of preventing reflux, few studies have focused on controlling the blood supply to the anastomosis site. Therefore, we introduced a modified approach to the vascular arch of the tubular stomach (TS) and conducted a preliminary examination of its safety and feasibility. <b><i>Methods:</i></b> Retrospective analysis of clinical data from 37 patients who underwent laparoscopic proximal gastrectomy at our center from March 2021 to June 2023, and comparison of clinical and pathological data, as well as intraoperative and short-term postoperative outcomes, between the modified TS group (<i>n</i> = 16) and the TS group (<i>n</i> = 21). <b><i>Results:</i></b> Compared with the TS, the modified TS had relatively longer operative times (170.63 ± 29.88 minutes versus 166.14 ± 27.49 minutes, <i>P</i> = .64) and anastomosis times (40.44 ± 6.60 minutes versus 36.14 ± 6.72 minutes, <i>P</i> = .06), and there was no significant difference in bleeding volume between the two groups (94.38 ± 75.19 mL versus 67.62 ± 44.15 mL, <i>P</i> = .14). There were 2 cases of postoperative anastomotic-related complications ((both of which were anastomotic bleeding) in the TS. No anastomotic-related complications were observed in the modified TS. There were a total of 6 cases in the postoperative gastroscopy modified TS, including 5 cases of LA-A and 1 case of LA-B; There are 10 cases of TS, including 7 cases of LA-A and 3 cases of LA-B. <b><i>Conclusions:</i></b> The modified TS during laparoscopic procedures is safe and feasible, decreasing to the maximal degree the potential blood supply disorders and bleeding risks at the anastomosis site while preventing reflux.