Asthma and gastroesophageal reflux: acid suppressive therapy improves asthma outcome

The American Journal of Medicine
S M HardingL A Bradley

Abstract

To determine (1) the appropriate omeprazole (Prilosec) dose required for adequate acid suppression in asthmatics with gastroesophageal reflux, (2) whether aggressive acid suppressive therapy of gastroesophageal reflux improves asthma outcome in asthmatics with gastroesophageal reflux, (3) the time course of asthma improvement, and (4) demographic, esophageal, or pulmonary predictors of a positive asthma response to antireflux therapy. Thirty nonsmoking adult asthmatics with gastroesophageal reflux (asthma defined by American Thoracic Society criteria and reflux defined by symptoms and abnormal 24-hour esophageal pH testing) were recruited from the outpatient clinics of a 900-bed university hospital. Patients underwent baseline studies including a demographic questionnaire, esophageal manometry, dual-probe 24-hour esophageal pH test, barium esophogram, and pulmonary spirometry. During the 4-week pretherapy phase, patients recorded reflux and asthma symptom scores and peak expiratory flow rates (PEFs) upon awakening, 1 hour after dinner, and at bedtime. Patients began 20 mg/d omeprazole, and the dose was titrated until acid suppression was documented by 24-hour pH test. Patients remained on this acid suppressive dose for 3 months...Continue Reading

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