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Chapter-09 Nonsuppurative Otitis Media

BOOK TITLE: Textbook of Ear, Nose & Throat

Author
ISBN
9788180614460
DOI
10.5005/jp/books/10907_9
Edition
1/e
Publishing Year
2005
Pages
5
Author Affiliations
Chapter keywords

Abstract

This chapter discusses nonsuppurative otitis media, where various names have been given to secretory otitis media such as silent otitis media, serous otitis media, glue ear or otitis media with effusion. Inflammatory mediators like prostaglandins and leukotrienes have an important role in the aetiopathogenesis of secretory otitis media. Nitrogen level in the middle ear is more than in blood vessels, which then diffuses into these vessels. Middle ear structures can be seen through thin tympanic membrane. On examination, the external auditory canal shows excessive keratinisation of debris possibly due to excessive hyperaemia of tympanic membrane and deep meatus. Aspiration and suction may be done by instilling normal saline or mucolytic agents like chymotrypsin or urea solution. Middle ear ventilation should be restored by decongestants, catheterisation or even myringotomy. Fluctuating deafness of conductive nature is seen in secretory otitis media. Tuning fork tests confirm conductive hearing loss. Antibiotics are used to prevent secondary infection.

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