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Sudden deafness in vestibular schwannoma

Published online by Cambridge University Press:  29 June 2007

David A. Moffat ,
David M. Baguley ,
Hubertus von Blumenthal ,
Richard M. Irving  and
David G. Hardy
David A. Moffat*
Affiliation:
Department of Otoneurological and Skull Base Surgery, Addenbrooke's Hospital, Cambridge.
David M. Baguley
Affiliation:
Department of Otoneurological and Skull Base Surgery, Addenbrooke's Hospital, Cambridge.
Hubertus von Blumenthal
Affiliation:
Department of Otoneurological and Skull Base Surgery, Addenbrooke's Hospital, Cambridge.
Richard M. Irving
Affiliation:
Department of Otoneurological and Skull Base Surgery, Addenbrooke's Hospital, Cambridge.
David G. Hardy
Affiliation:
Department of Otoneurological and Skull Base Surgery, Addenbrooke's Hospital, Cambridge.
*
David A. Moffat, F.R.C.S., Department of Otolaryngology, Addenbrooke's Hospital, Hills Road, Cambridge CB2 2QQ.
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Abstract

Twelve per cent of a series of 284 patients with vestibular schwannoma presented with sudden deafness. If sudden sensorineural hearing loss is present then it is very likely to be the main presenting symptom. The mean length of patients' history is eight months shorter in this group than in the non-sudden deafness group. Sixteen per cent of vestibular schwannoma patients without sudden deafness present with a 'dead' ear whereas 29.5 per cent of those presenting with sudden deafness have total hearing loss. There was no significant difference between the sudden deafness group and the 'all others' group with regard to tumour size, udiogram shape, caloric test, imbalance, and facial numbness. Although the numbers of patients with sudden deafness in this series were too small to reach significance, on the basis of the clinical correlation of vestibular schwannoma morphology it is possible to postulate that compression of the vasculature within the bony internal auditory canal by a laterally arising tumour may be the aetiological factor and may be more likely to occur than in more medially arising tumours.

Keywords

DeafnesssuddenSchwannomavestibularNeurilemmalNeuroglial
Type
Main Articles
Information
The Journal of Laryngology & Otology , Volume 108 , Issue 2 , February 1994 , pp. 116 - 119
Copyright
Copyright © JLO (1984) Limited 1994

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