Sleeve gastrectomy (SG) involves the creation of small gastric reservoir based on lesser curvature of the stomach, which is fashioned by a longitudinal gastrectomy that preserves the antrum and pylorus together with its vagal innervation. Recently SG is viewed as a multi-purpose bariatric procedure that restricts the stomach size to induce satiety and resects fundal ghrelin-producing cells to decrease appetite. However, the risk of staple line leak and bleeding remains one of its challenging complications. Despite the fact that there are a large number of studies assessing various methods of making the staple line secure, there is to date, no consensus on which technique is best for reducing the risk of stapler line bleeding and leak. Hence, this study aims to compare staple line suturing reinforcement methods in sleeve gastrectomy using plication and over-sewing techniques.

Inclusion Criteria:

- Patients at our Bariatric Clinic fulfilling NIH criteria for bariatric surgery and planned operation of laparoscopic sleeve gastrectomy as primary bariatric procedure will be evaluated for possible inclusion

Exclusion Criteria:

1. Age < 18 or > 65

2. BMI < 35 and > 60 kg/m2

3. American Society of Anesthesiologists (ASA) score > 3

4. Concurrent surgical procedure including:

   1. ventral hernia repair
   2. cholecystectomy
   3. hiatal hernia repair with posterior cruroplasty
   4. extensive lysis of adhesions
   5. other procedures that mandate addition of 'trocar(s)' or 'feeding tube'

This is a single blinded randomisation whereby the patient is not aware on the staple-line suturing reinforcement used. Suturing reinforcement of the staple-line is our standard of care in all laparoscopic sleeve gastrectomy patients