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The impact of reflux composition on mucosal injury and esophageal function

  • 2005 SSAT Annual Meeting
  • Published:
Journal of Gastrointestinal Surgery

Abstract

The components of refluxed gastric juice are known to cause mucosal injury, but their effect on esophageal function is less appreciated. Our aim was to determine the effect of acid and/or bile on mucosal injury and esophageal function. From 1993–2004, 402 patients with reflux symptoms had 24-hour pH and Bilitec monitoring, manometry, and endoscopy with biopsies. Mucosal injury (esophagitis or Barrett’s esophagus) and esophageal function (lower esophageal sphincter [LES] characteristics and body contractility) in patients with acid reflux, bile reflux, or both were compared with patients without reflux. Reflux was present in 273/402 patients; of these, 37 (13.5%) had increased exposure to bile, 82 (30.0%) had increased exposure to acid, and 154 (56.4%) had increased exposure to both. Mucosal injury was most common with increased mixed acid and bile exposure, followed by acid alone, and was uncommon with bile alone (P<0.0001). Functional deterioration paralleled mucosal injury (P<0.0001). Mixed acid and bile exposure was present in more than half of patients with reflux and was associated with the most severe mucosal injury and the greatest deterioration of esophageal function. This suggests that composition of gastric juice is the primary determinant of inflammatory mucosal injury and subsequent loss of esophageal function.

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Correspondence to Tom R. DeMeester M.D..

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Oh, D.S., Hagen, J.A., Fein, M. et al. The impact of reflux composition on mucosal injury and esophageal function. J Gastrointest Surg 10, 787–797 (2006). https://doi.org/10.1016/j.gassur.2006.02.005

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