The notable difference between these two operations is that the gastric bypass provides slightly more expected excess weight loss (%EWL) and is better suited for the resolution of obesity-related health problems than the gastric sleeve.
The RNY gastric bypass has a higher risk of complications than the sleeve gastrectomy. As a result of the malabsorption after gastric bypass, essential nutrients, vitamins, and minerals are not absorbed by the body. Therefore, it is crucial to maintain a lifelong intake of vitamins and dietary supplements following gastric bypass surgery. The gastric sleeve procedure is also less invasive because there is no rerouting, or bypassing, of the intestines.
Moreover, there is a lower chance of stretching the new stomach (stoma) after the gastric sleeve as the pyloric valve stays intact. There are also more effective revision surgery options for sleeve patients.
Complications After Gastric Sleeve
Gastric sleeve surgery has the lowest potential complications compared to other weight loss procedures. Mainly because it only removes a portion of the stomach.
Complications After Gastric Bypass
The Roux-en-Y Gastric Bypass is an established bariatric procedure. Even with extensive surgical experience, there are more complications with bypass versus sleeve.
Which Procedure is Best for Me?
The gastric sleeve is a good option for patients with extensive adhesions from a previous surgery in the abdominal area. Sleeve gastrectomy is also suitable for patients with a history of ulcers, those taking aspirin, or individuals who smoke.
Gastric bypass is better for patients with severe acid reflux/GERD and slow metabolism. If patients have previously had Nissen fundoplication anti-reflux surgery, meaning the stomach is wrapped around the esophagus valve, then gastric bypass is the most appropriate. People requiring high amounts of insulin are better off with RNY bypass.
Do I Qualify for Gastric Sleeve?
- BMI 30+
- Existing Abdominal Scarring
- Previous Ulcer
- Sleeve is Easily Revised
Do I Qualify for Gastric Bypass?
- BMI 35-55
- Severe Acid Reflux or GERD
- Slower Metabolism
- “Sweet Tooth”
- Barrett’s Esophagus
Consult with MBC’s top-rated weight loss surgeons in finding out the best option for you!