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Current clinical and pathological features of round window diseases
Author(s) -
Paparella Michael M.,
Goycoolea Marcos V.,
Schachern Patricia A.,
Sajjadi Hamed
Publication year - 1987
Publication title -
the laryngoscope
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.181
H-Index - 148
eISSN - 1531-4995
pISSN - 0023-852X
DOI - 10.1288/00005537-198710000-00006
Subject(s) - round window , medicine , sensorineural hearing loss , audiology , hearing loss , oval window , pathological , otosclerosis , pathology , middle ear , surgery , cochlea , stapes
The round window niche and membrane can be involved in clinical problems including perilymphatic fistulas, sensorineural hearing loss in otitis media, and a variety of others. The background of these problems is documented by a review of the literature and recent experimental evidence on round window grafting and tracer studies. Clinical pathological correlates including recent clinical experience are discussed for perilymphatic fistulas (sudden deafness, chronic progressive fluctuating sensorineural hearing loss, and association with Meniere's disease), sensorineural hearing loss in acute and chronic otitis media, and findings in round window membrane including absent round window reflex in cases of exploratory tympanotomy and otosclerosis. In addition, a new syndrome termed perilymphatic hypertension is described as seen in a subset of patients with sudden sensorineural hearing loss.