[Gastric Bypass: Weight Loss with Complications]
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Updated: Feb 5, 2026

Roux-en-Y Gastric Bypass Operation in Rats
Published on: June 11, 2012
Maria Nucera1, Mark Mahanty1, Franz Eigenmann2
11 Klinik für Allgemein-, Viszeral- und Gefässchirurgie, Kantonsspital Baden, Baden-Dättwil.
Abstract:
Gastric Bypass: Weight Loss with Complications Abstract. Roux-en-Y gastric bypass (RYGBP) is the most often performed bariatric operation worldwide with internal hernia as one of the main long-term complications. To our knowledge, we report the first case of post-ischemic small-bowel strictures observed after a successful operation of an internal hernia after RYGBP. During emergency surgery a Petersen and a Brolin hernia were diagnosed and repaired. The initially ischemic small intestine was recovered. However, a week later the patient presented herself again due to ischemia-induced small-bowel strictures. These were treated successfully by endoscopic balloon dilatation.
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