The Chicago Classification of esophageal motility disorders, v3.0

High resolution manometry Peristalsis Esophagogastric junction Contractility Esophageal motility disorder Esophageal spasm
DOI: 10.1111/nmo.12477 Publication Date: 2014-12-03T19:46:23Z
ABSTRACT
Abstract Background The Chicago Classification ( CC ) of esophageal motility disorders, utilizing an algorithmic scheme to analyze clinical high‐resolution manometry HRM studies, has gained acceptance worldwide. Methods This 2014 update, v3.0, developed by the International Working Group, incorporated extensive experience and interval publications since prior (2011) version. Key Results v3.0 utilizes a hierarchical approach, sequentially prioritizing: (i) disorders esophagogastric junction EGJ outflow (achalasia subtypes I‐III obstruction), (ii) major peristalsis (absent contractility, distal spasm, hypercontractile esophagus), (iii) minor characterized impaired bolus transit. morphology, degree overlap between lower sphincter crural diaphragm baseline contractility are also part v3.0. Compared previous version, key metrics interpretation, integrated relaxation pressure IRP ), contractile integral DCI latency DL remain unchanged, albeit with much more emphasis on for defining both hypo‐ hypercontractility. New in are: evaluation at rest defined terms morphology ‘fragmented’ contractions (large breaks 20‐mmHg isobaric contour), ineffective IEM (iv) several adjustments nomenclature criteria. Absent front velocity small contour as characteristics. Conclusions & Inferences is updated analysis recordings Group.
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