Abstract
Dysphagia is a common symptom with which patients present. This review focuses primarily on the esophageal motor disorders that result in dysphagia. Following a brief description of the normal swallowing mechanisms and the messengers involved, more specific motor abnormalities are discussed. The importance of achalasia, as the only pathophysiologically defined esophageal motor disorder, is discussed in some detail, including recent developments in pathogenesis and treatment options. Other esophageal spastic disorders are described, with relevant manometric tracings included. In recent years, the importance of gastroesophageal reflux as a primary cause of esophageal dysmotility has been recognized, and this is also discussed. In addition, the motility disturbances that develop after surgical fundoplication are reviewed.
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