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Article Abstract

The clearance of the esophagus is to transport food boluses from the pharynx to the stom- ach through peristaltic motion. This occurs through the primary peristaltic wave, triggered by swallowing, passing from the upper to lower esophagus in a sequence of contractions and relaxations. Investigation modalities for evaluation of esophageal clearance function include esophageal manometry (included high resolution manometry), esophageal radiography (barium swallow), esophageal scintigraphy, ultrasonography, impedance methods and com- bination with transnasal endoscopy and manometry. Of these, evaluation of esophageal clear- ance is conducted quantitative assessment of esophageal motility as well as transient lower esophageal sphincter relaxation(TLESR) in reflux esophagitis.

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