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Updated: Jul 3, 2026

Roux-en-Y Gastric Bypass Operation in Rats
Published on: June 11, 2012
Failure of gastric bypass following several gastrointestinal hemorrhages
Enrico Mozzi1, Ezio Lattuada, Marco Antonio Zappa
1Fondazione Ospedale Maggiore Policlinico, Mangiagalli e Regina Elena IRCCS, Università di Milano, Milan, Italy. enrico.mozzi@unimi.it
Abstract:
Gastrointestinal hemorrhage is an infrequent major complication of gastric bypass. We present a 22-year-old morbidly obese man who underwent a laparoscopic Roux-en-Y gastric bypass and had several life-threatening hemorrhages from both the gastric pouch and gastric remnant, associated with an intra-abdominal hemorrhage. The patient underwent two subsequent reoperations, leading eventually to gastrectomy. The possibility to discover all the sources of bleeding after gastric bypass is discussed, and the adoption of a modification of the procedure that allows the investigation of the excluded stomach is suggested.
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