特異な聴力損失像を呈した突発性難聴の一治験例

概要

論文の詳細を見る
A 55-year-old male had a slight attack of cold and ear fullness and was found to be severely deaf in the left ear when he awoke in the next morning.The audiogram showed typical volley-type hearing loss up to 75 dB in the middle frequency range. Recruitment was positive. In the affected ear diplacusis was found and the directional acuity of hearing was impaired in that side. A marked loss for the distorted speech discrimination was revealed. These audiologic findings suggested socalled endolymphatic hydrops.The hearing loss recovered to be completely normal in the following two weeks, and recruitment and diplacusis were gradually improved.The etiology and pathogenesis of sudden deafness were discussed on referring to the previous clinical reports and investigations of the inner ear pathology.
社団法人日本耳鼻咽喉科学会の論文