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Updated: Mar 27, 2026

A Protocol for Roux-en-Y Gastric Bypass in Rats using Linear Staplers
Published on: August 21, 2021
A new revisional surgery for severe protein-calorie malnutrition after Roux-en-Y gastric bypass: successful
Reginaldo Ceneviva1, Wilson Salgado Júnior1, Júlio S Marchini2
1Department of Surgery and Anatomy, Medical School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil.
Abstract:
Roux-en-Y gastric bypass (RYGB) may result in nutritional deficiencies, mainly involving micronutrients, and occasionally protein-calorie malnutrition (PCM) because of the resulting anatomic and functional changes. Failure of conservative PCM treatment may be an indication for corrective surgery, where the technique may vary according to the surgical cause of the malnutrition. In this study, we present the results of the reconnection of the duodenum and the proximal jejunum to the alimentary tract for the treatment of severe PCM caused by malabsorption after RYGB.
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