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Electrical Field Interactions during Adjacent Electrode Stimulations: eABR Evaluation in Cochlear Implant Users.
Guevara, Nicolas; Truy, Eric; Hoen, Michel; Hermann, Ruben; Vandersteen, Clair; Gallego, Stéphane.
Afiliación
  • Guevara N; Institut Universitaire de la Face et du Cou, Centre Hospitalier Universitaire de Nice, Université Côte d'Azur, 06100 Nice, France.
  • Truy E; Department of Audiology and Otorhinolaryngology, Edouard Herriot Hospital, Lyon 1 University, 69437 Lyon, France.
  • Hoen M; Clinical Evidence Department, Oticon Medical, 06220 Vallauris, France.
  • Hermann R; Department of Audiology and Otorhinolaryngology, Edouard Herriot Hospital, Lyon 1 University, 69437 Lyon, France.
  • Vandersteen C; Institut Universitaire de la Face et du Cou, Centre Hospitalier Universitaire de Nice, Université Côte d'Azur, 06100 Nice, France.
  • Gallego S; Institute for Readaptation Sciences and Techniques, Lyon 1 University, 69373 Lyon, France.
J Clin Med ; 12(2)2023 Jan 11.
Article en En | MEDLINE | ID: mdl-36675534
The present study investigates how electrically evoked Auditory Brainstem Responses (eABRs) can be used to measure local channel interactions along cochlear implant (CI) electrode arrays. eABRs were recorded from 16 experienced CI patients in response to electrical pulse trains delivered using three stimulation configurations: (1) single electrode stimulations (E11 or E13); (2) simultaneous stimulation from two electrodes separated by one (En and En+2, E11 and E13); and (3) stimulations from three consecutive electrodes (E11, E12, and E13). Stimulation level was kept constant at 70% electrical dynamic range (EDR) on the two flanking electrodes (E11 and E13) and was varied from 0 to 100% EDR on the middle electrode (E12). We hypothesized that increasing the middle electrode stimulation level would cause increasing local electrical interactions, reflected in characteristics of the evoked compound eABR. Results show that group averaged eABR wave III and V latency and amplitude were reduced when stimulation level at the middle electrode was increased, in particular when stimulation level on E12 reached 40, 70, and 100% EDR. Compound eABRs can provide a detailed individual quantification of electrical interactions occurring at specific electrodes along the CI electrode array. This approach allows a fine determination of interactions at the single electrode level potentially informing audiological decisions regarding mapping of CI systems.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: J Clin Med Año: 2023 Tipo del documento: Article País de afiliación: Francia Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Prognostic_studies Idioma: En Revista: J Clin Med Año: 2023 Tipo del documento: Article País de afiliación: Francia Pais de publicación: Suiza