You are here

Sleeve gastrectomy

During the laparoscopic sleeve gastrectomy, a thin vertical pouch — a "sleeve” — is created by stapling off part of the existing stomach. The sleeve, which now functions as the stomach, is about the size of a banana. The rest of the stomach is removed. By creating a smaller stomach pouch, a sleeve gastrectomy limits the amount of food that can be eaten at one time, so you feel full sooner and stay full longer. As you eat less food, your body will stop storing excess calories and start using its fat supply for energy.

The sleeve allows for normal digestion and absorption. Food passes through the digestive tract in the usual order, allowing it to be fully absorbed.


  • Vitamins and nutrients are fully absorbed as usual
  • No postoperative adjustments are needed
  • Significant weight loss — average 55% loss of excess weight
  • Helps resolve other health risks  — high blood pressure, type 2 diabetes, high cholesterol and sleep apnea


  • Non-reversible
  • Tissue near the staples and stomach removal site may separate over time
  • Gastric leakage
  • Irregular esophageal contractions
  • Recurrent indigestion

Request weight management information