Abstract
Dysphonia is one of the symptom of gastroesophageal reflux disease (GERD). We examined the relationship of dysphonia and reflux in sleep disorder patients. A sample population of 208 answered questionnaire about presence of dysphonia during the course of study. Of the 208 responders, FSSG (frequency scale for the symptoms of GERD) questionnaires were further conducted on 170 (81.7%) and 135 (64.9%) had laryngeal fiberscopy exams. 37.5% of the sample population was found to have dysphonia and 53.3% had glottic edemas. The ratio of GERD cases was 44.1%. With the presence of dysphonia, a significant difference was found in the grade of vocal cord edema, each score of acid reflux related to the symptoms of 3 out of 7 items, and the total score of the FSSG inquiry list.The likelihood of edema of the vocal cords being found in cases having dysphonia was higher than in subclinical cases of sleep disorder patients, and acid reflux was recognized as a cause of dysphonia, as suggested from the questionnaire results.
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