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Association of otitis media with effusion and allergy as demonstrated by intradermal skin testing and eosinophil cationic protein levels in both middle ear effusions and mucosal biopsies.

Abstract
This study was performed to ascertain the role of allergy, as defined by skin testing and histochemical markers, in the pathogenesis of otitis media with effusion (OME). A historical perspective of allergy as it relates to OME is presented. The study included 89 patients: 48 with persistent effusion but no recent acute infection, 25 with purulent OME complicated by a superimposed infection, and 16 control subjects. All 89 patients had persistent effusion for more than 2 months and subsequently required the placement of tympanostomy tubes. Allergy was defined using the radioallergosorbent test (RAST), serum immunoglobulin E (IgE) levels, and skin tests. Allergies were present in 97% of the patients with nonacute OME. The relationship between allergy and OME was corroborated clinically in 89% of patients and was also substantiated by elevated levels of effusion eosinophil cationic protein (ECP) in 87.5% of OME patients. Histologically, polyclonal antibody staining for ECP demonstrated the presence of eosinophils in middle ear mucosal biopsy specimens. This study confirms that OME is a sign of allergic inflammation in the middle ear that is associated with an increase in eosinophils and a concomitant release of ECP into the effusion in individuals with allergy demonstrated by skin testing.
AuthorsD S Hurst
JournalThe Laryngoscope (Laryngoscope) Vol. 106 Issue 9 Pt 1 Pg. 1128-37 (Sep 1996) ISSN: 0023-852X [Print] United States
PMID8822719 (Publication Type: Journal Article)
Chemical References
  • Blood Proteins
  • Eosinophil Granule Proteins
  • Inflammation Mediators
  • Ribonucleases
Topics
  • Adolescent
  • Adult
  • Biopsy
  • Blood Proteins (analysis)
  • Child
  • Child, Preschool
  • Eosinophil Granule Proteins
  • Humans
  • Hypersensitivity (complications)
  • Infant
  • Inflammation Mediators (analysis)
  • Intradermal Tests
  • Mucous Membrane (pathology)
  • Otitis Media with Effusion (immunology, pathology)
  • Radioallergosorbent Test
  • Ribonucleases

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