A case series shows a relation between intracochlear electric field distribution and vestibular co-stimulation with cochlear implants

Abstract The objective of this study was to investigate the relation between the electric field distribution within the cochlea during cochlear implant stimulation and the electrical vestibular co-stimulation measured by vestibular evoked myogenic potentials (e-VEMPs). Measurements were done in adul...

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Main Authors: Luise Wagner, Torsten Rahne, Stefan K. Plontke, Laura Fröhlich
Format: Article
Language:English
Published: Nature Portfolio 2025-05-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-00887-6
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author Luise Wagner
Torsten Rahne
Stefan K. Plontke
Laura Fröhlich
author_facet Luise Wagner
Torsten Rahne
Stefan K. Plontke
Laura Fröhlich
author_sort Luise Wagner
collection DOAJ
description Abstract The objective of this study was to investigate the relation between the electric field distribution within the cochlea during cochlear implant stimulation and the electrical vestibular co-stimulation measured by vestibular evoked myogenic potentials (e-VEMPs). Measurements were done in adult Nucleus cochlear implant (CI) users with perimodiolar electrode arrays. The electric field distribution within the cochlea was determined by Transimpedance Matrices recorded for all participants with a pulse width of 25 µs and a current level of 110 CL. Study measurements were conducted in 25 ears of 24 participants. In 10 participants, e-VEMPs could be elicited (40%). The occurrence of e-VEMPs stimulated by the cochlear implant was correlated with the magnitude of a corrected transimpedance at the most basal electrode. Since the results also suggest that there are patients with vestibular co-stimulation already present at their everyday CI stimulation level, this needs to be taken into account by audiologists creating programming maps for CIs, e.g. by deactivation of basal electrode contacts, if dizziness occurs during CI stimulation.
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spelling doaj-art-67b74fe211ed4e29b13c12c56745b3df2025-08-20T03:53:12ZengNature PortfolioScientific Reports2045-23222025-05-011511710.1038/s41598-025-00887-6A case series shows a relation between intracochlear electric field distribution and vestibular co-stimulation with cochlear implantsLuise Wagner0Torsten Rahne1Stefan K. Plontke2Laura Fröhlich3Department of Otorhinolaryngology, Head & Neck Surgery, Martin Luther University Halle-Wittenberg, University Medicine Halle (Saale)Department of Otorhinolaryngology, Head & Neck Surgery, Martin Luther University Halle-Wittenberg, University Medicine Halle (Saale)Department of Otorhinolaryngology, Head & Neck Surgery, Martin Luther University Halle-Wittenberg, University Medicine Halle (Saale)Department of Otolaryngology, Head and Neck Surgery, University Hospital BonnAbstract The objective of this study was to investigate the relation between the electric field distribution within the cochlea during cochlear implant stimulation and the electrical vestibular co-stimulation measured by vestibular evoked myogenic potentials (e-VEMPs). Measurements were done in adult Nucleus cochlear implant (CI) users with perimodiolar electrode arrays. The electric field distribution within the cochlea was determined by Transimpedance Matrices recorded for all participants with a pulse width of 25 µs and a current level of 110 CL. Study measurements were conducted in 25 ears of 24 participants. In 10 participants, e-VEMPs could be elicited (40%). The occurrence of e-VEMPs stimulated by the cochlear implant was correlated with the magnitude of a corrected transimpedance at the most basal electrode. Since the results also suggest that there are patients with vestibular co-stimulation already present at their everyday CI stimulation level, this needs to be taken into account by audiologists creating programming maps for CIs, e.g. by deactivation of basal electrode contacts, if dizziness occurs during CI stimulation.https://doi.org/10.1038/s41598-025-00887-6e-VEMPsCochlear implantTransimpedance matrixCo-stimulation
spellingShingle Luise Wagner
Torsten Rahne
Stefan K. Plontke
Laura Fröhlich
A case series shows a relation between intracochlear electric field distribution and vestibular co-stimulation with cochlear implants
Scientific Reports
e-VEMPs
Cochlear implant
Transimpedance matrix
Co-stimulation
title A case series shows a relation between intracochlear electric field distribution and vestibular co-stimulation with cochlear implants
title_full A case series shows a relation between intracochlear electric field distribution and vestibular co-stimulation with cochlear implants
title_fullStr A case series shows a relation between intracochlear electric field distribution and vestibular co-stimulation with cochlear implants
title_full_unstemmed A case series shows a relation between intracochlear electric field distribution and vestibular co-stimulation with cochlear implants
title_short A case series shows a relation between intracochlear electric field distribution and vestibular co-stimulation with cochlear implants
title_sort case series shows a relation between intracochlear electric field distribution and vestibular co stimulation with cochlear implants
topic e-VEMPs
Cochlear implant
Transimpedance matrix
Co-stimulation
url https://doi.org/10.1038/s41598-025-00887-6
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