1. To test if there is a significant differences between Oversewing versus surgical ligation clips for staple line reinforcement of the gastric pouch regarding the reduction of post operative bleeding and the need for blood transfusions in laparoscopic one anastomosis gastric bypass. 2. To assess whether oversewing or the use of surgical clips is more effective in reducing operative time and Cost analysis in (OAGB). 3. To Provide evidence-based recommendations on staple line reinforcement techniques in OAGB, emphasizing patient safety and procedural efficiency
✔ Age ≥ 18years old
Sex: both sex
Fit for bariatric surgery
body mass index (BMI) of 40 kg/m 2 or higher or BMI between 35 and 40 kg/m2 with significant comorbidities, such as T2DM, hypertension, OSAS or significant osteo- articular alterations, not responsive to medical therapies
Patients less than 18 years old
Patients or first guardians refused to participate in the current study
Patients or first guardians refused to provide informed written consent
All patients with bleeding disorders and patients needing re-exploration for bleeding other than staple line Pregnant or breastfeeding women