The sleeve gastrectomy, also called a vertical sleeve gastrectomy or gastric sleeve, is a procedure where about 80% of the stomach is removed, leaving a sleeve-shaped stomach. The procedure is typically performed laparoscopically, through a number of small incisions on the abdomen, under a general anaesthetic. The surgery takes around 1 to 1.5 hours.
How does it cause weight loss?
The sleeve gastrectomy is a restrictive procedure. By restricting the size of your stomach, the amount you can eat is limited. Additionally, the hunger-producing hormone, Ghrelin, is mainly created in the stomach. After surgery, the Ghrelin drops significantly, which reduces your food craving.
How much weight can I expect to lose?
Studies have found that at one year after surgery, patients have lost 68% of their excess weight. At five years after surgery, patients have lost 53.2% of their excess weight. These amounts are averages, and the amount of weight loss varies from individual to individual.
Source: M. Golzarand et al. “Surg. Endos.”, 2017.
How long do I need to stay in hospital?
Typically 1 to 2 nights. You may require longer if you have a complex health history.
Is the procedure safe?
The sleeve gastrectomy has a low complication rate, however every surgery has risks.
Short term risks can include:
- Excessive bleeding
- Blood clots
- Stomach leaks
Long term risks can include:
Though it may seem daunting, the benefits of the surgery often outweigh the risks. Both risks and benefits should be assessed when considering surgery.
How much does the surgery cost?
Information on surgery costs can be found on the Our Costs page.