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The Effect of a Proton-pump Inhibitor in Unexplained Chronic Cough Patients  

Yang, Joo Youn (Department of Internal Medicine, Dankook University College of Medicine)
Lee, Ho Youn (Department of Internal Medicine, Dankook University College of Medicine)
Kim, Nam Hee (Department of Internal Medicine, Dankook University College of Medicine)
Kim, Youn Seup (Department of Internal Medicine, Dankook University College of Medicine)
Publication Information
Tuberculosis and Respiratory Diseases / v.61, no.2, 2006 , pp. 137-142 More about this Journal
Abstract
Background: Recent studies have suggested an association between chronic cough and gastroesophageal reflux. Our study aimed to assess the utility of a proton-pump inhibitor in unexplained chronic cough patients. Methods: Patients with chronic cough of unknown etiology were evaluated using a chest x-ray, methacholine challenge test, and an empirical trial of postnasal drip therapy. After excluding other potential causes of the cough, forty patients were included in the study and treated for 8 weeks with a proton-pump inhibitor. Results: Eleven and three patients in the first and second 4 weeks were lost to follow-up, leaving twenty-six patients finally included in the study. Of these patients, two were unimproved, eight partially responded to the proton-pump inhibitor and sixteen responded completely after the 8 week treatment. Conclusion: We suggest that empirical treatment with a proton pump inhibitor in all patients with persistent cough, which is not secondary to asthma or postnasal drip syndrome, represents a practical and simple approach to this ailment.
Keywords
Chronic cough; Gastroesophageal reflux; Proton pump inhibitor;
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