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Case report highlights increased aspiration risk in patients with one-anastomosis mini gastric bypass, suggesting airway management changes.
Mini gastric-bypass or one-anastomosis mini gastric-bypass (OA-MGB) is an emerging surgical technique for weight loss surgery with a single anastomosis and similar weight loss results to a Roux-en-Y gastric bypass (RY-GB). Reflux of bile secretions into the newly formed gastric pouch is a recognised consequence of the OA-MGB. We report a case of severe pulmonary aspiration of bile contents upon induction of anaesthesia for a planned laparoscopic cholecystectomy in a patient with a previous OA-MGB. Airway practice may need to be amended to reflect the specially increased risk of aspiration in patients who have had an OA-MGB.
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Mathers et al. (2026) studied this question.
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