Gastric bypass is the preferred operation for treatment of morbid obesity on many services. The evaluation of the excluded stomach is always difficult and a matter of concern for the attending physician. There are only four reported cases of gastric cancer in the distal stomach after gastric bypass. We report a 57-year-old man who had intestinal metaplasia at the time of the Roux-en-Y gastric bypass 4 years ago and now developed an aggressive carcinoma in the bypassed stomach.

-Context -Causal factors of gastrojejunal ulcers after Roux-en-Y gastric bypass include peptic acid secretion from the gastric pouch. Esomeprazole is a potent inhibitor of acid secretion. Objective -To assess the occurrence of dyspepsia and gastrojejunal ulcers within the first 2 months after Roux-en-Y gastric bypass during the use of esomeprazole. Methods -One hundred eighteen morbid obese subjects were submitted to Roux-en-Y gastric bypass. Preoperative upper gastrointestinal tract endoscopy was negative for H. pylori. All subjects received esomeprazole for 60 days after surgery. Results -Two weeks after surgery only 13 mild symptoms were reported. After 2 months, 17 also moderate complaints were registered. Endoscopy around the 60th day showed esophagitis in 10 (8.5%), hiatal hernia in 2 (1.7%), foreign body in the anastomotic line in 12 (10.2%) and gastrojejunal ulcers was observed in 9 (7.6%) subjects, 2 of which had a suture material or metallic staple granuloma in the gastrojejunostomy. Ten subjects took nonsteroidal anti-inflammatory drugs at least once during study, but none of them developed ulcer. None of the subjects with ulcer had dyspeptic symptoms. Conclusion -The incidence of ulcer in the gastrojejunal anastomosis within the first 2 months following Rouxen-Y gastric bypass under proton pump inhibitors is considerable. It was not related to the use of non-steroidal anti-inflammatory drugs, highlighting the possibility of ischemia and foreign body as causal factors. The ulcers were asymptomatic, and all post-surgical dyspeptic symptoms were moderate in severity.

Our results show that comorbidities remission after RYGB is sustained in a long-term follow-up. Weight regain is linked to worse results for all comorbidities except infertility.

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This case, like others in the literature, appendectomy is curative, but a 5-year follow-up is mandatory. When a young patient presents with enterorrhagia, this diagnosis has to be considered.