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Updated: Aug 22, 2026

One-anastomosis Gastric Bypass (OAGB) in Rats
Published on: November 10, 2018
Gastric bezoars after adjustable gastric banding
Anna Veronelli1, Roberto Ranieri, Marco Laneri
1Cattedra di Medicina Interna, Università degli Studi di Milano, Via Antonio Di Rudini 8, 20142 Milan, Italy. averonelli@hspsanpaolo.mi.it
Background:
Gastric bezoars may develop in the proximal pouch after gastric restriction.
Methods:
Of 299 patients who underwent laparoscopic adjustable gastric banding (LAGB), 4 developed gastric bezoars at different intervals after surgery (24 days, 8 months, 18 months, and 6 years).
Results:
Symptoms of high dysphagia and vomiting occurred in all 4 patients. Removal of the bezoars via endoscopy was uneventful, and all patients have maintained their gastric band. Patients were emphasized to avoid rapid intake of high-residue cellulose foods, and to achieve complete mastication. No bezoar has recurred in these patients at 7 to 75 months further follow-up.
Conclusion:
Gastric bezoar should be considered after LAGB if the patient complains of persistent high fullness and vomiting.
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