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One-anastomosis Gastric Bypass OAGB in Rats
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Intestinal obstruction following gastric bypass.

Ana Carolina Brochado Geist1, Cláudio Corá Mottin2, Carlos Frota Dillenburg3

  • 1Serviço de Atendimento ao paciente Obeso metabólico (SAO), Av. Dr Maurício Cardoso 931 sala 12, 93510-335, Novo Hamburgo, RS, Brazil; Graduate Program in Medicine and Health Sciences, PUCRS, Porto Alegre, RS, Brazil.

Obesity Research & Clinical Practice
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Summary

Gastric bypass surgery can lead to late bezoar formation, causing intestinal obstruction. This condition requires prompt diagnosis and surgical intervention for affected patients.

Keywords:
BezoarCases reportGastric bypassIntestinal obstruction

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Area of Science:

  • Gastroenterology
  • Surgical complications
  • Bariatric surgery

Background:

  • Gastric bypass is a common bariatric procedure.
  • Late postoperative complications can arise after gastric bypass.
  • Bezoars are indigestible masses that can cause gastrointestinal issues.

Purpose of the Study:

  • To highlight intestinal obstruction caused by bezoars as a critical differential diagnosis.
  • To emphasize the need for prompt diagnosis and emergency management of bezoar-induced obstruction post-gastric bypass.

Main Methods:

  • Retrospective case series.
  • Analysis of 8 patients with intestinal obstruction due to bezoars in the late postoperative period of gastric bypass.
  • Review of surgical interventions required for these cases.

Main Results:

  • Eight cases of intestinal obstruction due to bezoars were identified.
  • All reported cases necessitated surgical intervention.
  • Fruit pomace was identified as a common cause of bezoar formation.

Conclusions:

  • Intestinal obstruction from bezoars is a significant late complication of gastric bypass.
  • Early consideration in differential diagnosis is crucial for timely management.
  • Urgent surgical intervention is often required for bezoar-related intestinal obstruction.