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Gastric bypass for treating severe obesity.
H J Sugerman1, J M Kellum, K M Engle
1Department of Surgery, Medical College of Virginia, Richmond 23298.
The American Journal of Clinical Nutrition
|February 1, 1992
Summary
Roux-Y gastric bypass (RY-GBP) is effective for morbid obesity, especially for those craving sweets, leading to significant weight loss. However, potential deficiencies like vitamin B-12 and iron require monitoring and supplementation.
Area of Science:
- Bariatric Surgery
- Gastroenterology
- Obesity Medicine
Background:
- Roux-Y gastric bypass (RY-GBP) involves a small gastric pouch and a Roux-Y gastrojejunostomy.
- RY-GBP offers superior weight loss compared to gastroplasty procedures.
- RY-GBP can lead to early satiety and aversion to sweets due to dumping syndrome.
Purpose of the Study:
- To evaluate the long-term efficacy of Roux-Y gastric bypass for morbid obesity.
- To identify potential complications and management strategies associated with RY-GBP.
- To compare RY-GBP effectiveness against other bariatric procedures.
Main Methods:
- Review of long-term follow-up data for RY-GBP patients.
- Analysis of weight loss trends at 2, 5, and 9 years post-surgery.
- Assessment of nutritional deficiencies and management protocols.
Main Results:
- RY-GBP patients achieve significant excess weight loss: two-thirds within 2 years, 60% at 5 years, and over 50% at 9 years.
- Potential for nutritional deficiencies, including vitamin B-12 and iron, particularly in menstruating females.
- Weight loss can be compromised by consistent consumption of high-calorie "junk foods".
Conclusions:
- RY-GBP is a highly effective bariatric procedure for morbid obesity, particularly for patients with a preference for sweets.
- Prophylactic oral iron and vitamin B-12 supplementation can prevent common deficiencies.
- Conversion to malabsorptive procedures is reserved for superobese patients failing RY-GBP due to risks of severe malnutrition.