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An exploration of vestibular function pre and post unilateral cochlear implantation

An exploration of vestibular function pre and post unilateral cochlear implantation
An exploration of vestibular function pre and post unilateral cochlear implantation

Objectives: To examine the effects of unilateral cochlear implantation on the balance system for adult patients with bilateral severe to profound sensory neural hearing loss. Methods: 7 CI candidates. The function of the sacculus, utricle, and three semi-circular canals (SCCs) was assessed separately using air conduction cervical vestibular evoked myogenic potentials (VEMP), vibration ocular VEMP and the video head impulse test (vHIT) respectively on each side, pre- and post-operatively. Results: The Otoliths appear more affected by implantation than SCCs. In 3 of 7 cases VEMP was affected by implantation. In 2 cases this was associated with short-term dizziness. Discussion: Differential assessment of vestibular end organ function may elucidate how cochlear implantation affects the vestibular system. As many CI candidates have some vestibular function, pre-implant vestibular assessment may help to inform which side of implantation may best preserve that function if other audiology and surgical considerations are equal. Post-implant assessment with VEMP may help to predict short-term dizziness. More work with a larger sample will be needed to make the case for routine clinical assessment. Conclusions: There is potential benefit of conducting multimodal vestibularassessment pre and post cochlear implantation. The otoliths appear more affected by implantation than the SCC.

ACS VEMP, Adults, BCV oVEMP, Unilateral cochlear implant, Vestibular function, vHIT
1467-0100
281-291
Obeidat, F.S.
41a0c78a-59e6-46c7-9a7e-fde736d10b27
Bell, S.L.
91de0801-d2b7-44ba-8e8e-523e672aed8a
Eyles, Julie
183486b3-50e3-4dc2-a4cb-ab04023cb83e
Obeidat, F.S.
41a0c78a-59e6-46c7-9a7e-fde736d10b27
Bell, S.L.
91de0801-d2b7-44ba-8e8e-523e672aed8a
Eyles, Julie
183486b3-50e3-4dc2-a4cb-ab04023cb83e

Obeidat, F.S., Bell, S.L. and Eyles, Julie (2020) An exploration of vestibular function pre and post unilateral cochlear implantation. Cochlear Implants International, 21 (5), 281-291. (doi:10.1080/14670100.2020.1774716).

Record type: Article

Abstract

Objectives: To examine the effects of unilateral cochlear implantation on the balance system for adult patients with bilateral severe to profound sensory neural hearing loss. Methods: 7 CI candidates. The function of the sacculus, utricle, and three semi-circular canals (SCCs) was assessed separately using air conduction cervical vestibular evoked myogenic potentials (VEMP), vibration ocular VEMP and the video head impulse test (vHIT) respectively on each side, pre- and post-operatively. Results: The Otoliths appear more affected by implantation than SCCs. In 3 of 7 cases VEMP was affected by implantation. In 2 cases this was associated with short-term dizziness. Discussion: Differential assessment of vestibular end organ function may elucidate how cochlear implantation affects the vestibular system. As many CI candidates have some vestibular function, pre-implant vestibular assessment may help to inform which side of implantation may best preserve that function if other audiology and surgical considerations are equal. Post-implant assessment with VEMP may help to predict short-term dizziness. More work with a larger sample will be needed to make the case for routine clinical assessment. Conclusions: There is potential benefit of conducting multimodal vestibularassessment pre and post cochlear implantation. The otoliths appear more affected by implantation than the SCC.

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Accepted/In Press date: 17 June 2020
e-pub ahead of print date: 22 June 2020
Published date: September 2020
Additional Information: Publisher Copyright: © 2020 Informa UK Limited, trading as Taylor & Francis Group. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
Keywords: ACS VEMP, Adults, BCV oVEMP, Unilateral cochlear implant, Vestibular function, vHIT

Identifiers

Local EPrints ID: 442239
URI: http://eprints.soton.ac.uk/id/eprint/442239
ISSN: 1467-0100
PURE UUID: cf826281-1dfd-41d8-9590-7b9ed116011b

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Date deposited: 09 Jul 2020 16:38
Last modified: 25 Nov 2021 18:34

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Contributors

Author: F.S. Obeidat
Author: S.L. Bell
Author: Julie Eyles

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