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Prognostic significance of hearing loss as a lateralizing indicator in the surgical treatment of vertigo

Published online by Cambridge University Press:  29 June 2007

Geoffrey Shone ,
John L. Kemine  and
Steven A. Telian
Geoffrey Shone*
Affiliation:
Ann Arbor, Michigan, U.S.A.
John L. Kemine
Affiliation:
Ann Arbor, Michigan, U.S.A.
Steven A. Telian
Affiliation:
Ann Arbor, Michigan, U.S.A.
*
G. R. Shone, Department of Otolaryngology, University Hospital of Wales, Heath Park, Cardiff CF4 4XW.
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Abstract

In patients with peripheral vertigo the presence of an asymmetrical hearingloss is an important lateralizing sign, having both diagnostic and prognostic significance. In a consecutive series of 83 patients undergoing retro-labyrinthine vestibular nerve section for uncontrolled vertigo, asymmetrical hearing loss was associated with an 83 percent incidence of complete control of vertigo and a 49 per cent incidence of complete relief from dysequilibrium. In the absence of a lateralizing hearing loss, the figures were 50 per cent and 24 per cent respectively (p<0.01 and p<0.05). The explanation for this finding may be that the presence of a hearing loss is more often associated with an exclusively peripheral disorder (controllable by peripheral surgical ablation), whereas inpatients with symmetrical hearing there may be an unrecognized central or contralateral pathology resulting in lesseffective results from a unilateral peripheral surgical approach. The bithermal caloric test did not give such useful diagnostic or prognostic information.

Keywords

VertigoDeafnessVestibular verve section

Information

Type
Main Articles
Information
The Journal of Laryngology & Otology , Volume 105 , Issue 8 , August 1991 , pp. 618 - 620
Copyright
Copyright © JLO (1984) Limited 1991

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