To analyze the effects of conical overlapping anastomoplasty during endoscopic proximal gastrectomy on gastroesophageal reflux and nutritional status in Siewert type Ⅱ AEG patients.

Forty-two patients with Siewert type Ⅱ esophagogastric conjunctive adenocarcinoma from January 2020 to August 2023 were selected and divided into two groups by random number table method, with 21 patients in each group. All patients underwent laparoscopic proximal gastrectomy. Conical overlapping anastomosis was performed in the observation group, and double muscle flap anastomosis was performed in the control group. SPSS 24.0 completed data analysis. The count data is represented by [cases (%)], comparing the row χ² test or the Rank Sum test; Measurement data were represented by () and independent sample t test was performed. P<0.05 was considered statistically significant.

Operation time, first postoperative exhaust time, feeding time and hospitalization time in observation group were shorter than those in control group, and intraoperative blood loss was less than that in control group, the difference was statistically significant (P<0.05). The levels of hemoglobin (HB), serum albumin (ALB) and total protein (TP) in observation group were significantly higher than those in control group at 3 months and 6 months after operation (P<0.05); The Visick grade of the observation group was significantly better than that of the control group (P<0.05). There was no significant difference in the total incidence of complications between the two groups (P>0.05).

Conical overlapping anastomosis in laparoscopic proximal gastrectomy for Siewert type Ⅱ AEG can reduce surgical difficulty, reduce surgical time and bleeding, promote postoperative nutrient absorption of patients, facilitate recovery, and have better anti-reflux effects.