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Updated: Feb 11, 2026

One-anastomosis Gastric Bypass OAGB in Rats
Published on: November 10, 2018
[Severe hypoglycaemia due to insulinoma after gastric bypass surgery]
Anne Sjøbjerg1, Per Løgstrup Poulsen, Stine Kramer
1annesoej@rm.dk.
Abstract:
Postprandial hypoglycaemia with endogenous hyper-insulinaemia is relatively common after gastric bypass (GB) surgery. However, alternative aetiologies of hypoglycaemia should be kept in mind. We report a case of severe hypo-glycaemia in a patient who had previously undergone GB surgery for morbid obesity. Hypoglycaemic episodes differed from typical GB-related hypoglycaemia by occurring during fasting periods. Examination revealed insulinoma, and nine months after resection the patient remained symptom free.
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