Journal of Neurogastroenterology and Motility : eISSN 2093-0887 / pISSN 2093-0879

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Fig. 2. Hierarchical classification for esophageal motility disorders according to Chicago classification version 4.0. According to the latest version of the Chicago classification, motility disorders can be classified into 2 main subcategories based on the manometric parameter, expressing the relaxation of the esophago-gastric junction, the integrated relaxation pressure. If raised, patients are categorized into the disorders of the esophagogastric junction (EGJ) outflow, comprising achalasia and EGJ outflow obstruction.
J Neurogastroenterol Motil 2023;29:419~427
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