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;

3. 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;

4. 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