ENGLISH ABSTRACT
JOURNAL ARTICLE
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[Response of the upper esophageal sphincter to various esophageal stimuli in patients with reflux esophagitis].

The clinical symptoms, including oropharingeal dysphagia and bronchial symptoms, have been analyzed in 18 normal controls and in 48 patients with reflux esophagitis. Patients with reflux and pyrosis and regurgitation usually have a disease of longer duration, more bronchial symptoms, greater severity of endoscopic lesions and less pressure in the U.E.S. area than those who only have heartburn. In 10 normals as well as in 28 patients (15 with pyrosis and 13 with both pyrosis and regurgitation) the pressure behavior of the superior esophageal sphincter has been studied with a specially designed instrument after different stimuli: acid perfusion at 5 and 10 cm of the U.E.S. during 5 minutes and esophageal balloon distention at 10 cm. In normal individuals none of the stimuli modified the pressure at rest of the U.E.S., while in patients with reflux esophagitis only HCl perfusion at 5 cm was able to significantly increase pressure. This finding was independent of the clinical symptoms of the patients.

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