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Esophageal Motility Disorders

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Definition: Disorders affecting the motor function of the UPPER ESOPHAGEAL SPHINCTER; LOWER ESOPHAGEAL SPHINCTER; the ESOPHAGUS body, or a combination of these parts. The failure of the sphincters to maintain a tonic pressure may result in gastric reflux of food and acid into the esophagus (GASTROESOPHAGEAL REFLUX). Other disorders include hypermotility (spastic disorders) and markedly increased amplitude in contraction (nutcracker esophagus).     
Examples CREST Syndrome; Esophageal Achalasia; Esophageal Spasm, Diffuse; Gastroesophageal Reflux; Plummer-Vinson Syndrome 		Other names Nutcracker Esophagus; Esophageal Dysmotility; Motility Disorders, Esophageal; Motility Disorder, Esophageal; Esophagus, Nutcracker; Esophageal Motility Disorder; Esophageal Dysmotilities; Dysmotility, Esophageal; Dysmotilities, Esophageal; Disorders, Esophageal Motility; Disorder, Esophageal Motility

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Sources: NLM Medical Subject Headings, NIH UMLS, Drugs@FDA, FDA AERS original data copyright United States Government. No endorsement implied. Last modified 6/6/2012
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