Abstract
The cases suffering from a fluctuating hearing impairment were reported. Most of all these patients had tinnitus and fullness prior to a loss of hearing acuity, however, vestibular imbalance such as vertigo seemed much less than cochlear symptoms. Apparently these clinical manifestations differed from Meniere's disease or sudden deafness.Hearing loss of these patients, which showed a low tone deafness in most cases, were a sensorineural in type an fluctuating hearing loss were observed in clinical course.Audiometric evaluations revealed that lesions of this type of deafness might be inner ear.Moreover, a pathogenesis for fluctuating deafness was discussed.
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