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Dig Dis Sci. 2005 Oct;50(10):1909-15.

The value of ambulatory 24 hr esophageal pH monitoring in clinical practice in patients who were referred with persistent gastroesophageal reflux disease (GERD)-related symptoms while on standard dose anti-reflux medications.

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1
Department of Medicine, The Neuro-Enteric Clinical Research Group, Section of Gastroenterology, Southern Arizona VA Health Care System, University of Arizona College of Medicine, Tucson, Arizona 85723-0001, USA.

Abstract

To determine the value of pH testing in clinical practice in gastroesophageal reflux disease patients who failed anti-reflux treatment. Patients resistant to standard dose proton pump inhibitor or an H2-blocker underwent pH testing. Randomly selected patients from the proton pump inhibitor failure group underwent the modified acid perfusion test as compared to patients with non-erosive reflux disease. In the proton pump inhibitor failure group (n = 70), 63.8% had a normal pH test as compared to 29% in the H2-blocker group (n = 31) (P = 0.007). Sensory intensity rating and acid perfusion sensitivity score were significantly higher in the non-erosive reflux disease control group than the proton pump inhibitor failure group (P < 0.05). Most patients who continued to be symptomatic on proton pump inhibitor once daily demonstrated a normal pH test and overall lack of increased chemoreceptor sensitivity to acid.

PMID:
16187196
DOI:
10.1007/s10620-005-2960-7
[Indexed for MEDLINE]
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