Sleeve gastrectomy
A portion of the stomach is surgically removed, leaving a smaller, tubular ('sleeve-shaped') stomach. This reduces gastric volume and influences hormones involved in hunger and satiety.
How it works
- Performed laparoscopically under general anesthesia.
- Approximately 70–80% of the greater curvature of the stomach is removed.
- Ghrelin-producing tissue in the fundus is reduced, which is thought to contribute to appetite changes.
- Typical hospital stay is short; recovery is generally faster than bypass procedures.
Risks and considerations
- Bleeding, infection, and standard surgical risks
- Staple-line leak (uncommon at accredited programs)
- New or worsening reflux (GERD) in a subset of patients
- Nutritional deficiencies if long-term supplementation and follow-up are not maintained
Follow-up
Long-term follow-up with a bariatric program is essential to monitor nutrition and address any complications.
May be discussed for
- Adults living with obesity meeting program criteria
- Patients seeking a procedure with a shorter operative time than bypass procedures
When it may not be appropriate
Patients with severe reflux may be advised toward bypass procedures. A multidisciplinary team makes the recommendation.
Dr. Ariel Ortiz Lagardere, MD, FACS, FASMBS
Bariatric & Metabolic Surgeon · Founder, Obesity Control Center
- Content reviewed
- Educational overview of Sleeve gastrectomy.
- Last reviewed
- 2026-06-01
See our medical review policy, editorial policy, and references.
Dr. Ariel Ortiz Lagardere, MD, FACS, FASMBS
Bariatric & Metabolic Surgeon · Founder, Obesity Control Center
Last reviewed: June 2026
Educational claims on this page are supported by independent guidelines, peer-reviewed evidence, and verifiable accreditation listings. See Sources & Verification and Science & Evidence.
Medical notice. This content is educational only and does not replace professional medical advice. Do not start, stop, or change GLP-1 medication without consulting your physician.