Skip Navigation
Roux-en-Y Gastric Bypass Surgery

Gastric Bypass Surgery

This operation involves creating a small gastric pouch using surgical stapling across the stomach.

gastric bypassDuring this procedure, a small gastric pouch is created using surgical stapling across the stomach. The gastric pouch is drained by a “Roux-en-Y” gastric bypass. The name of this procedure is derived from the Swiss surgeon, Cesar Roux, who first described the procedure and “Y” shape configuration that is formed when the intestine is surgically divided and re-arranged. The procedure combines the effects of a restrictive, small pouch and the bypass of the small intestine, which is the part of the body that absorbs all nutrients. Because your body will not be absorbing nutrients from food, you will be required to take nutritional supplements.

You may qualify for this surgery if you have:

  • Been severely obese for at least 5 years
  • Have a Body Mass Index (BMI) greater than 40 or are more than 100 pounds overweight
  • Must lose weight for medical reasons (diabetes, high blood pressure, arthritis, sleep apnea)
  • Have no substance abuse problems
  • Don’t suffer from psychosis, eating disorders, or uncontrolled depression
  • Have tried to lose weight without permanent success

All gastric bypass candidates are screened on an individual basis. (Many insurance companies have their own standards that must be met.)

You will not be considered for gastric bypass surgery if you:

  • Are unprepared to make lifestyle changes that will help you lose weight
  • Have medical conditions that make the risk of surgery outweigh any potential health benefits
  • Have a severe psychological disorder or substance abuse
  • Are not willing to follow our recommendations

Statistics about success rates

  • More than 80% of Type 2 diabetes cases are resolved with Roux-en-Y gastric bypass surgery
  • Gastric bypass surgery successfully resolves more cases of Type 2 diabetes than purely restrictive procedures
  • Resolution of Type 2 diabetes often occurs within days of the surgery
  • Almost 97% of hyperlipidemia cases are resolved
  • Over 75% of hypertension cases are resolved; Nearly 90% are resolved or improved
  • Substantial weight reduction occurs—over 60% of excess weight can be lost
  • In 2000, a study of 500 patients showed that over 95% of co-morbidities (the study looked specifically at back pain, sleep apnea, high blood pressure, Type 2 diabetes, and depression) were improved or resolved.
  • The average excess weight loss after a gastric bypass procedure is generally higher than with a purely restrictive procedure

SOURCE: Buchwald H, Avidor Y, Braunwald E, et al. Bariatric Surgery. A Systematic Review and Meta-Analysis. JAMA 2004.