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Acoustic neuroma and the contralateral ear: recovery of auditory brainstem response abnormalities after surgery

Published online by Cambridge University Press:  29 June 2007

J. A. J. Deans ,
J. P. Birchall  and
A. D. Mendelow
J. A. J. Deans*
Affiliation:
Department of Otolaryngology, Freeman Hospital, Newcastle Upon Tyne.
J. P. Birchall
Affiliation:
Department of Otolaryngology, Freeman Hospital, Newcastle Upon Tyne.
A. D. Mendelow
Affiliation:
Department of Neurosurgery, General Hospital, Newcastle Upon Tyne.
*
Mr J. A. J. Deans, F.R.C.S., Department of Otolaryngology, Freeman Hospital, Freeman Road, Newcastle upon Tyne NE7 7DN.
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Abstract

Auditory brainstem responses are an established technique in the diagnosis of acoustic neuroma. In several reports abnormalities are shown to occur in the contralateral ear.

That these abnormalities recover has been demonstrated, but only in terms of changes in inter-peak latency. In only one case has the waveform trace showing this been published. We present a case in which a highly abnormal wave form was obtained from the ear contralateral to a large acoustic neuroma. Following excision of the lesion, the waveform reverted to a normal pattern. The literature on the subject is reviewed.

Type
Clinical Records
Information
The Journal of Laryngology & Otology , Volume 104 , Issue 7 , July 1990 , pp. 565 - 569
Copyright
Copyright © JLO (1984) Limited 1990

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