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Updated: Jan 19, 2026

A Protocol for Roux-en-Y Gastric Bypass in Rats using Linear Staplers
Published on: August 21, 2021
Non-Bariatric Roux-en-Y Gastric Bypass
Federico Cuenca-Abente1, Rolando Puma1, Javier Ithurralde-Argerich1
1Foregut Surgery Unit, Digestive Tract Surgery Service, Department of Surgery, Hospital de Gastroenterología "Dr. Carlos Bonorino Udaondo," Ciudad Autónoma de Buenos Aires, Argentina.
Abstract:
Roux-en-Y gastric bypass (RYGB) is frequently performed for weight loss purposes in the morbidly obese population. The popularity and acceptance of this procedure have increased the knowledge of the physiological (anatomical and functional) changes that this technique produces in the organism. RYGB improves gastric emptying and gastroesophageal reflux symptoms. We analyzed 6 patients in whom an RYGB was performed for non-bariatric purposes. Symptom questionnaire was used to evaluate response. None of the patients qualified for bariatric surgery, as all had a body mass index (BMI) <35 kg/m2. Five patients were operated on for severe gastroesophageal reflux disease symptoms, and one for gastroparesis. All patients had good to excellent results, with marginal modification of their BMI. Non-bariatric RYGB can be considered in patients with functional diseases of the upper gastrointestinal tract, regardless of their BMI.
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