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Esophageal Dysmotility in Small Animals

By

Patricia Walters

, VMD, DACVIM, DACVECC, New England Animal Medical Center

Last full review/revision May 2014 | Content last modified May 2014

Young dogs may have a disorder of esophageal dysmotility without overt megaesophagus. Clinical signs can be similar to those of megaesophagus, although some dogs without clinical signs have abnormal motility during an esophagram. In one study in more than half the cases, the condition improved or resolved with age. Terrier breeds were overrepresented. Cats can also have esophageal dysfunction, which can be idiopathic; congenital; or secondary to myasthenia gravis, mediastinal masses, vascular ring anomalies, dysautonomia, and strictures. Many cats improve with medical management such as the use of sucralfate, H2-blockers, and metoclopramide.

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Digestive System
In all animals, malassimilation refers to an impaired ability of the gastrointestinal tract to provide nutrients to the body because of maldigestion or malabsorption. Maldigestion occurs when food cannot be properly broken down within the intestinal lumen. Malabsorption occurs when nutrients fail to pass from the intestinal lumen into the blood. Which of the following diseases is most likely to result in maldigestion?
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