Sleeve gastrectomy removes approximately 75 to 80 percent of the stomach, leaving a narrow sleeve, without rerouting the intestine. Gastric bypass creates a small stomach pouch connected directly to the small intestine, producing stronger hormonal effects and greater average weight loss but a more complex procedure with higher nutritional monitoring requirements. The right choice depends on BMI, diabetes status, reflux history, and surgical risk, assessed individually.
Written by Dr Niranjan P, MBBS, DNB (General Surgery), Consultant General, GI, Laparoscopic, Robotic and Bariatric Surgeon, NiSH Clinic, 48, 7th B Main Rd, 4th Block, Jayanagar, Bengaluru 560011.
