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  • Title: Lack of proton pump inhibitor trial prior to commencing therapy for eosinophilic esophagitis is common in the community.
    Author: Whitson MJ, Lynch KL, Yang YX, Metz DC, Falk GW.
    Journal: Dis Esophagus; 2018 May 01; 31(5):. PubMed ID: 29293904.
    Abstract:
    Eosinophilic esophagitis is characterized by eosinophil inflammation restricted to the esophagus and the resulting symptoms of esophageal dysfunction. Critical to the diagnosis of eosinophilic esophagitis is a trial of proton pump inhibitor therapy to exclude alternative causes of esophageal eosinophilia such as proton pump inhibitor-responsive esophageal eosinophilia. While consensus guidelines recommend a proton pump inhibitor trial prior to diagnosis, little is known about its implementation in clinical practice. The primary aim of this study is to assess the frequency of proton pump inhibitor trial prior to the diagnosis of eosinophilic esophagitis in community practice. The secondary aim is to assess the frequency of other treatments for eosinophilic esophagitis, including topical steroids and/or dietary therapy, in patients who did not undergo a proton pump inhibitor trial prior to diagnosis or who had an alternative diagnosis to eosinophilic esophagitis upon completed workup. We conducted a single-center, case series of patients referred to the Hospital of the University of Pennsylvania for eosinophilic esophagitis management between 2010 and 2015. This case series consisted of 125 patients who were referred from community practitioners with a presumptive diagnosis of eosinophilic esophagitis. Upon review, 90 out of 125 (72%) patients had not had a proton pump inhibitor trial or esophageal pH testing prior to the diagnosis of eosinophilic esophagitis being made. Of these patients, 77.8% (70/90) had already received either topical steroid or dietary therapy for presumed eosinophilic esophagitis. Of the 125 patients initially diagnosed with eosinophilic esophagitis, 32 (25.6%) were found to have an alternative diagnosis, and 79.2% of this subset of patients (25/32) had previously received topical steroid or dietary therapy. This study demonstrates that a substantial number of patients with presumed eosinophilic esophagitis have not had a proton pump inhibitor trial prior to diagnosis in community practice. This led to the misclassification of patients and potentially to the use of less optimal medical therapies in a substantial number of these patients.
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