IgE-associated food allergy alters the presentation of paediatric eosinophilic esophagitis. Clin Exp Allergy 2016 Nov;46(11):1431-1440
Date
10/30/2016Pubmed ID
27388929Pubmed Central ID
PMC5085872DOI
10.1111/cea.12776Scopus ID
2-s2.0-84992602670 (requires institutional sign-in at Scopus site) 29 CitationsAbstract
BACKGROUND: Links between food allergens and eosinophilic esophagitis (EoE) have been established, but the interplay between EoE- and IgE-associated immediate hypersensitivity to foods remains unclear.
OBJECTIVE: We sought to determine the prevalence of IgE-associated food allergy at the time of diagnosis of EoE in children and to determine whether differences existed in presentation and disease compared to subjects with EoE alone.
METHODS: Eosinophilic esophagitis patients were stratified based on the diagnosis of IgE-associated immediate hypersensitivity (EoE + IH vs. EoE-IH). Clinical, histologic, pathologic, and endoscopic differences were investigated using a retrospective database.
RESULTS: We found that 29% of the 198 EoE patients in our cohort had EoE + IH. These subjects presented at a younger age than those without IH (6.05 vs. 8.09 years, P = 0.013) and were more likely to have comorbid allergic disease. Surprisingly, the EoE + IH group presented with significantly different clinical symptoms, with increased dysphagia, gagging, cough, and poor appetite compared to their counterparts in the EoE-IH group. Male gender, allergic rhinitis, the presence of dysphagia, and younger age were independently associated with having EoE + IH. Specific IgE levels to common EoE-associated foods were higher in EoE + IH, regardless of eliciting immediate hypersensitivity symptoms. In contrast, IgE levels for specific foods triggering EoE were relatively lower in both the groups than IgE levels for immediate reactions.
CONCLUSIONS AND CLINICAL RELEVANCE: Immediate hypersensitivity is common in children with EoE and identifies a population of EoE patients with distinct clinical characteristics. Our study describes a subtype of EoE in which IgE-mediated food allergy may impact the presentation of paediatric EoE.
Author List
Pelz BJ, Wechsler JB, Amsden K, Johnson K, Singh AM, Wershil BK, Kagalwalla AF, Bryce PJAuthor
Barry Joel Pelz MD Assistant Professor in the Pediatrics department at Medical College of WisconsinMESH terms used to index this publication - Major topics in bold
AdolescentAnimals
Child
Child, Preschool
Comorbidity
Eosinophilic Esophagitis
Female
Food
Food Hypersensitivity
Humans
Hypersensitivity, Immediate
Infant
Male
Phenotype
Prevalence
Retrospective Studies
Symptom Assessment
