The Sleeve Gastrectomy is the most commonly performed bariatric operation in Australia. It is a restrictive procedure that is performed laparoscopically (keyhole) where approximately 9/10 of the stomach is permanently removed from the body by a stapling procedure. A relatively rapid weight loss is seen in the first 6-12 months after surgery. Patients usually lose between 40-60% of excess weight over 12 to 18 months.
How does Gastric Sleeve Surgery help you lose weight?
The normal stomach can hold up to about 2 litres of food or liquid. After the gastric sleeve procedure, the stomach size is drastically reduced, thus limiting the amount of food you can eat. The remaining gastric sleeve can hold between 100-200ml of food which results in the feeling of fullness after a relatively small portion of food.
The normal stomach produces a substance called ghrelin which is a “hunger hormone”. After a Sleeve Gastrectomy, levels of this hormone are significantly reduced thus promoting hunger control and early satiety (feeling of fullness).