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Perforation of the excluded segment without pneumoperitoneum following Roux-en-Y gastric bypass surgery: case report and literature review

Abstract Background Because of the increasing prevalence of obesity and bariatric surgery (Roux-en-Y gastric bypass (RYGB) as the gold standard), there is a still growing population of people with altered post-operative anatomy. Although the most common early and late complications following RYGB are well known, they can still be difficult to diagnose. The altered anatomy after RYGB can create a real diagnostic and therapeutic challenge since routine examinations can be negative. Case report We present a rare case of a 38-year-old woman with acute abdominal pain and a history of RYGB who proved to have a duodenal perforation in the absence of free air on radiologic examination. The perforation was closed laparoscopically and proton pump inhibitors were administered. Conclusions Perforations of the excluded segment in RYGB patients are rare and represent a diagnostic challenge, as pneumoperitoneum is usually absent and the excluded segment is difficult to access. Despite negative diagnostic findings, laparoscopic exploration should always be considered.