Sleeve gastrectomy

In sleeve gastrectomy, about 75% of the stomach is removed, leaving only a narrow tube, or sleeve, of stomach. No intestines are removed or bypassed. This surgery takes about one to two hours to complete and requires an overnight stay in the hospital.



  • Patients feel less hungry, and they feel full after eating less food.
  • The need for blood pressure or diabetes medications may be reduced.
  • Patients lose 50-70% of their excess weight, on average, in the first 12-18 months.
  • Patients report less “dumping” syndrome (food moving too quickly from the stomach to the bowels) with the sleeve, compared to gastric bypass.


  • The risks of surgery may include, but are not limited to: bleeding, staple-line leak, infection, blood clots, pneumonia, need for additional surgery, or death.
  • Some patients report increased heartburn, which may require medication or additional surgery.