Feasibility of Enhanced Recovery After Surgery Without Prophylactic Abdominal Drainage Tubes After Laparoscopic Distal Gastrectomy For Gastric Cancer

Inclusion Criteria: 1. Patients' age from 18 to 80 years old; 2. Histopathologically confirmed gastric adenocarcinoma; 3. Clinical tumor stage of cT1-4N0-3M0; 4. Laparoscopic distal gastrectomy approach; 5. ECOG score of 0-1; 6. Written informed consent Exclusion Criteria: 1. Patients with severe concurrent illness or comorbid diseases; 2. Patients with severe pyloric obstruction, recurrent or remnant gastric cancer; 3. Patients with perforation, or undergoing emergency surgery; 4\. Patients with a history of radiotherapy; 5. Patients undergoing complex abdominal surgeries other than laparoscopic cholecystectomy or appendectomy; 6. Patients with peritoneal, hepatic or ovarian metastasis, or simultaneous tumors in other parts of the body preoperatively and intraoperatively; 7. Patients with diabetes and poor recent glycemic control; 8. Patients with autoimmune diseases who have received corticosteroid treatment; 9. Patients with a BMI ≥30 kg/m2 or \<18 kg/m2; 10. Patients with gastrointestinal hemorrhage and hemoglobin levels below 90 g/L; 11. Patients with hypoproteinemia and albumin levels below 30 g/L; 12. Patients with portal hypertension; 13. Patients with severe edema or dense fibrosis intraoperatively after neoadjuvant therapy; 14. Patients with intraoperative findings of duodenal invasion; 15. Patients with combined organ resection; 16. Reconstruction different from BillrothⅡand Braun anastomosis; 17. Patients with preoperative pathological examination inconsistent with postoperative result; 18. Declined to participate; 19. Patients with poor compliance and withdrew from the study halfway