A Prospective Study on Esophagogastrostomy by an Innovative Surgical Technique

Inclusion Criteria

• •1. Age between 18 and 75 years old;
• •2. Pathologically confirmed as adenocarcinoma;
• •3. Primary tumor located in the upper 1/3 of the stomach or the gastroesophageal junction (Siewert II or III);
• •4. If it is adenocarcinoma of the upper 1/3 of the stomach, cT1N0M0 should be met.
• •5. For gastroesophageal junction adenocarcinoma, cT1-2N0M0 should be met, and clinical judgment should indicate no distant lymph node metastasis around the stomach.
• •6. Bilateral resection margins should be greater than 2 cm, and more than half of the residual stomach should be preserved.
• •7. No history of upper abdominal surgery (excluding laparoscopic cholecystectomy).
• •8. No preoperative comprehensive treatments such as chemotherapy, radiotherapy, targeted therapy, immunotherapy, etc.
• •9. Preoperative ECOG (Eastern Cooperative Oncology Group) score of 0/1.
• •10. Preoperative ASA (American Society of Anesthesiologists) score I-III.
• •11. Good function of important organs.
• •12. Signed informed consent.