Gastric sleeve is a surgery that involves only the stomach. It does not involve surgery on the intestine. A large, rounded portion of the stomach is removed, leaving a slender section of stomach that looks like a sleeve, or a banana. After a sleeve gastrectomy, patients feel full after eating much less.
Gastric sleeve leaves the openings of the stomach intact, so digestion can continue as normal unlike gastric bypass. This procedure is also helpful for patients who want to lose weight but have health conditions that make more aggressive procedures less safe. This procedure is irreversible, but it can be converted to other weight loss procedures in the future if necessary.
In gastric sleeve surgery, also called vertical sleeve gastrectomy, a surgeon removes most of your stomach, leaving only a banana-shaped section that is closed with staples. Like gastric band surgery, this surgery reduces the amount of food that can fit in your stomach, making you feel full sooner. Taking out part of your stomach may also affect gut hormones or other factors such as gut bacteria that may affect appetite and metabolism. This type of surgery cannot be reversed because some of the stomach is permanently removed.
Advantages of Gastric Sleeve
- No disconnecting or rerouting of small intestine
- Weight loss similar to gastric bypass
- No implanted device and no adjustments
- Safer than gastric bypass
Gastric Sleeve Risks
- Long-term results not known conclusively
- Severely obese patients may need a second operation with a conversion to bypass