To investigate the clinical efficacy of complete laparoscopic transabdominal transdiaphragmatic hiatus approach for radical resection of Siewert typeⅡadenocarcinoma of the esophagogastric junction.

A total of 78 patients with Siewert typeⅡadenocarcinoma of the esophagogastric junction (AEG) admitted from January 2021 to December 2023 were prospectively selected as the research subjects. The patients were divided into the control group and the study group by the digital table method, with 39 cases in each group. The control group underwent surgery through the left thoracic-abdominal combined approach, while the study group underwent surgery through the transabdominal transdiaphragmatic hiatus approach. Data were analyzed using SPSS 25.0 statistical software. The surgical time, postoperative complications, cardiac and pulmonary functions, and survival status of the two groups were compared.

The operation time, blood loss, time to first ambulation, time to first defecation, and postoperative hospital stay of the study group were significantly shorter than those of the control group (P<0.05). The total incidence of postoperative complications in the study group (12.8%) was significantly lower than that in the control group (33.3%), and the difference was statistically significant (P<0.05). The levels of SV, LVEF, FVC, and FEV1 of the two groups after surgery were significantly lower than those before surgery, and the levels of each index in the study group were significantly higher than those in the control group (P<0.05). There was no statistically significant difference in the cumulative disease-free survival rate (71.8% vs. 69.2%) and cumulative overall survival rate (76.9% vs. 71.8%) between the two groups (Log-Rank χ²=0.013, 0.063, P=0.909, 0.802).

The complete laparoscopic transabdominal transdiaphragmatic hiatus approach for radical resection of Siewert typeⅡAEG has significant short-term efficacy, does not affect the effect of lymph node dissection and prognosis, can shorten the operation time, reduce intraoperative injury, lower the incidence of postoperative complications, promote postoperative recovery, and has high promotion value.