Cargando…

Analysis of Neural Interface When Using Modiolar Electrode Stimulation. Radiological Evaluation, Trans-Impedance Matrix Analysis and Effect on Listening Effort in Cochlear Implantation

Background: The proximity of the electrode to the modiolar wall may be of interest to investigate the effect of pitch discrimination. This research establishes the relation between these factors and whether perimodiolar positions may provide benefits regarding improved electrode discrimination. Meth...

Descripción completa

Detalles Bibliográficos
Autores principales: Ramos-de-Miguel, Angel, Falcón-González, Juan Carlos, Ramos-Macias, Angel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8432261/
https://www.ncbi.nlm.nih.gov/pubmed/34501410
http://dx.doi.org/10.3390/jcm10173962
_version_ 1783751123989954560
author Ramos-de-Miguel, Angel
Falcón-González, Juan Carlos
Ramos-Macias, Angel
author_facet Ramos-de-Miguel, Angel
Falcón-González, Juan Carlos
Ramos-Macias, Angel
author_sort Ramos-de-Miguel, Angel
collection PubMed
description Background: The proximity of the electrode to the modiolar wall may be of interest to investigate the effect of pitch discrimination. This research establishes the relation between these factors and whether perimodiolar positions may provide benefits regarding improved electrode discrimination. Methods: A prospective randomized study including 24 post-lingual deaf adults was performed. A psychoacoustic study was done by using a psychoacoustic research platform. Radiological study, and a cone-beam computed tomography was used to assess post cochlear implantation electrodes’ position. Trans-impedance matrix (TIM) analysis was performed after cochlear implant insertion in all cases, and pupillometry test was also performed. Results: 12 patients received a slim perimodiolar electrode array, and 12 patients received a straight electrode array. Although all the patients showed similar speech test results after 12 months follow-up, those implanted with a perimodiolar electrode obtained better scores in electrode discrimination test and pupillometry test, and showed more homogenous TIM patterns. Conclusions: The better positioning of the electrode array seams to provide a better hearing resolution and less listening effort trans-impedance matrix seems to be a useful tool to analyze positioning of the perimodiolar array.
format Online
Article
Text
id pubmed-8432261
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-84322612021-09-11 Analysis of Neural Interface When Using Modiolar Electrode Stimulation. Radiological Evaluation, Trans-Impedance Matrix Analysis and Effect on Listening Effort in Cochlear Implantation Ramos-de-Miguel, Angel Falcón-González, Juan Carlos Ramos-Macias, Angel J Clin Med Article Background: The proximity of the electrode to the modiolar wall may be of interest to investigate the effect of pitch discrimination. This research establishes the relation between these factors and whether perimodiolar positions may provide benefits regarding improved electrode discrimination. Methods: A prospective randomized study including 24 post-lingual deaf adults was performed. A psychoacoustic study was done by using a psychoacoustic research platform. Radiological study, and a cone-beam computed tomography was used to assess post cochlear implantation electrodes’ position. Trans-impedance matrix (TIM) analysis was performed after cochlear implant insertion in all cases, and pupillometry test was also performed. Results: 12 patients received a slim perimodiolar electrode array, and 12 patients received a straight electrode array. Although all the patients showed similar speech test results after 12 months follow-up, those implanted with a perimodiolar electrode obtained better scores in electrode discrimination test and pupillometry test, and showed more homogenous TIM patterns. Conclusions: The better positioning of the electrode array seams to provide a better hearing resolution and less listening effort trans-impedance matrix seems to be a useful tool to analyze positioning of the perimodiolar array. MDPI 2021-08-31 /pmc/articles/PMC8432261/ /pubmed/34501410 http://dx.doi.org/10.3390/jcm10173962 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ramos-de-Miguel, Angel
Falcón-González, Juan Carlos
Ramos-Macias, Angel
Analysis of Neural Interface When Using Modiolar Electrode Stimulation. Radiological Evaluation, Trans-Impedance Matrix Analysis and Effect on Listening Effort in Cochlear Implantation
title Analysis of Neural Interface When Using Modiolar Electrode Stimulation. Radiological Evaluation, Trans-Impedance Matrix Analysis and Effect on Listening Effort in Cochlear Implantation
title_full Analysis of Neural Interface When Using Modiolar Electrode Stimulation. Radiological Evaluation, Trans-Impedance Matrix Analysis and Effect on Listening Effort in Cochlear Implantation
title_fullStr Analysis of Neural Interface When Using Modiolar Electrode Stimulation. Radiological Evaluation, Trans-Impedance Matrix Analysis and Effect on Listening Effort in Cochlear Implantation
title_full_unstemmed Analysis of Neural Interface When Using Modiolar Electrode Stimulation. Radiological Evaluation, Trans-Impedance Matrix Analysis and Effect on Listening Effort in Cochlear Implantation
title_short Analysis of Neural Interface When Using Modiolar Electrode Stimulation. Radiological Evaluation, Trans-Impedance Matrix Analysis and Effect on Listening Effort in Cochlear Implantation
title_sort analysis of neural interface when using modiolar electrode stimulation. radiological evaluation, trans-impedance matrix analysis and effect on listening effort in cochlear implantation
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8432261/
https://www.ncbi.nlm.nih.gov/pubmed/34501410
http://dx.doi.org/10.3390/jcm10173962
work_keys_str_mv AT ramosdemiguelangel analysisofneuralinterfacewhenusingmodiolarelectrodestimulationradiologicalevaluationtransimpedancematrixanalysisandeffectonlisteningeffortincochlearimplantation
AT falcongonzalezjuancarlos analysisofneuralinterfacewhenusingmodiolarelectrodestimulationradiologicalevaluationtransimpedancematrixanalysisandeffectonlisteningeffortincochlearimplantation
AT ramosmaciasangel analysisofneuralinterfacewhenusingmodiolarelectrodestimulationradiologicalevaluationtransimpedancematrixanalysisandeffectonlisteningeffortincochlearimplantation