Abstract
A 62-year-old female presented with vertigo, tinnitus, sensation of fullness and fluctuating hearing loss of sensorineural type on the left ear. Thirteen years after, the vestibular symptoms disappeared naturally, but the cochlear symptoms are still present. Dehydration therapy, such as the oral administration of iso-sorbid or the intra-venous injection of furosemide aggravated the cochlear symptoms while overhydration therapy improved them. The results of the dehydration and hydration tests evaluated by hearing level were opposite to those frequently observed in patients with endolymphatic hydrops.Therefore, we assume that occlusion of the reuniens duct or utriculo-endolymphatic valve and endolymphatic collapse in the cochlea were responsible for the characteristic course of the symptoms in our patient.
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