This review highlights challenges and shortcomings in endoscopic grading of the anti-reflux barrier classifications.
Summary Endoscopic grading of the esophagogastric junction is essential for assessing the anti-reflux barrier (ARB). This review outlines the evolution of endoscopic ARB classifications, summarizes validation data, and highlights ongoing challenges with adoption, accuracy, and reproducibility.
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Olague et al. (2026) studied this question.
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