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Original Article

Transtympanic Electrocochleography During Glycerol Dehydration

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Pages 158-166 | Received 20 Jan 1977, Published online: 08 Jul 2009
 

Abstract

Thirteen patients with Meniere's disorder were tested using transtympanic electrocochleography during glycerol dehydration. The most common finding was a decrease in the negative summating potential and this appeared to be a more sensitive indicator of changes occurring in the cochlea than pure tone audiometry and speech discrimination. A pathophysiological explanation for this observation is offered and the possibility of using this decrease in the negative summating potential as a pointer to the prognosis of endolymphatic sac surgery is discussed.

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