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Allergy Induced Eustachian Tube and Middle Ear Pathophysiology

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While these studies have provided evidence to support the contention that nasal allergy contributes to OME, they have not confirmed the hypothesis in its entirety. The provocative intranasal antigen or histamine challenges have induced eustachian tube obstruction but have not resulted in OME. Because we wanted to minimize the possible risk of creating middle ear pathology following a provocative intranasal challenge, the absence of a resultant OME was anticipated for two reasons: 1) the relatively brief duration of eustachian tube obstruction after challenge and 2) the use of adult study subjects. Following intranasal provocative challenge, the developed tubal obstruction persisted only for several hours to a few days. In monkeys OME does not develop until 1 to 4 weeks after creating a surgical functional eustachian tube obstruction. Thus, eustachian tube obstruction must be sustained for a week or more for OME to develop. Further, a number of studies have suggested that euslachian tube function improves with age and has been related to the fact that OME is more prevalent in younger children. If the younger child has some degree of functional eustachian tube obstruction, then the development of an antigen provoked, histamine mediated eustachian tube obstruction might be expected to have more severe and prolonged effects at a lesser antigen dosage. It is our hypothesis that allergy and other pathophysiologic events that release or generate mediators of inflammation in the nasopharynx play a role in the pathogenesis of middle ear diseases. Our expectation is that in the not too distant future, further definition of these pathophysiologic events, will lead to a better understanding of the role of allergy and eustachian tube obstruction in the pathogenesis of ear diseases.
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Document Type: Research Article

Publication date: May 1, 1986

More about this publication?
  • Allergy and Asthma Proceedings is a peer reviewed publication dedicated to distributing timely scientific research regarding advancements in the knowledge and practice of allergy, asthma and immunology. Its primary readership consists of allergists and pulmonologists.

    The goal of the Proceedings is to publish articles with a predominantly clinical focus which directly impact quality of care for patients with allergic disease and asthma and by having the potential to directly impact the quality of patient care. AAP welcomes the submission of original works including peer-reviewed original research and clinical trial results. Additionally, as the official journal of the Eastern Allergy Conference (EAC), AAP will publish content from EAC poster sessions as well as review articles derived from EAC lectures.

    Featured topics include asthma, rhinitis, sinusitis, food allergies, allergic skin diseases, diagnostic techniques, allergens, and treatment modalities. Published material includes peer-reviewed original research, clinical trials and review articles.

    Articles marked "F" offer free full text for personal noncommercial use only.

    The journal is indexed in Thomson Reuters Web of Science and Science Citation Index Expanded, plus the National Library of Medicine's PubMed service.
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