Glossary term · Treatment
Sleeve gastrectomy (also: Vertical sleeve gastrectomy, Gastric sleeve, VSG): Sleeve gastrectomy is an irreversible weight-loss operation that removes a large part of the stomach, leaving a narrow tube-shaped stomach.
Sleeve gastrectomy is weight-loss surgery in which most of the stomach is removed, leaving a narrow, banana-shaped tube. MedlinePlus says it is usually done laparoscopically through two to five small incisions under general anaesthesia. It cannot be reversed. It works by limiting how much you can eat at one time.
How is it done?
MedlinePlus says the surgeon removes most of the stomach and staples the remainder into a tube. The valves at either end of the stomach are not changed. Because the surgery may increase the risk of gallstones, gallbladder removal is sometimes recommended before or during the operation.
Who may be considered?
MedlinePlus says candidates typically have a BMI of 40 or higher, or 35 or higher with a serious condition such as sleep apnoea, type 2 diabetes or heart disease. The bariatric team decides who is suitable.
What are the risks?
MedlinePlus lists heartburn, gastritis, ulcers, leaks along the staple line, scarring that may later block the bowel, vomiting and gallbladder problems. It says poor nutrition is possible but much less likely than with gastric bypass. NIDDK still advises lifelong vitamin and mineral supplements after sleeve surgery.
What should travelling patients plan for?
- Before travel: ask which tests, such as an upper GI endoscopy, the team wants first.
- In hospital: expect clear liquids first, then puréed food, as MedlinePlus describes.
- For the journey home: carry enough of any prescribed acid-reducing medicine and supplements.
- At home: arrange a dietitian and doctor to monitor blood tests and diet stages.
MedlinePlus says the surgery alone is not a solution to losing weight. Lasting results depend on following eating and exercise guidance.
Questions people ask
Is a sleeve better than a gastric bypass?
Neither is better for everyone. MedlinePlus notes nutrition problems are less likely after a sleeve, while a bypass changes how food is absorbed. Reflux, diabetes and other factors influence the choice. Your bariatric surgeon will advise.
Can a sleeve gastrectomy be undone?
No. MedlinePlus and NIDDK both say the stomach removal is permanent. Make sure you understand this, and the lifelong diet changes, before you consent.
Sources
General information, not medical or legal advice. Rules change: confirm with the official source. Your treating specialist decides on suitability, treatment and length of stay. How we write and check.