Effects of in vivo repositioning of slim modiolar electrodes on electrical thresholds and speech perception

Abstract The slim modiolar electrode has been reported to ensure better modiolar proximity than previous conventional perimodiolar electrodes and consistently high scala tympani localization. Nonetheless, variability in modiolar proximity exists even among slim modiolar electrodes, still leaving roo...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Sang-Yeon Lee, Young Seok Kim, Hyung Dong Jo, Yoonjoong Kim, Marge Carandang, Gene Huh, Byung Yoon Choi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/8a84d64a609f41839d9210669c7fce0f
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:8a84d64a609f41839d9210669c7fce0f
record_format	dspace
spelling	oai:doaj.org-article:8a84d64a609f41839d9210669c7fce0f2021-12-02T16:17:28ZEffects of in vivo repositioning of slim modiolar electrodes on electrical thresholds and speech perception10.1038/s41598-021-94668-62045-2322https://doaj.org/article/8a84d64a609f41839d9210669c7fce0f2021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-94668-6https://doaj.org/toc/2045-2322Abstract The slim modiolar electrode has been reported to ensure better modiolar proximity than previous conventional perimodiolar electrodes and consistently high scala tympani localization. Nonetheless, variability in modiolar proximity exists even among slim modiolar electrodes, still leaving room for further improvement of modiolar proximity, which may positively affect functional outcomes. Given this, the pull-back maneuver was reported to increase the modiolar proximity of slim modiolar electrodes in a cadaveric study, but in vivo repositioning effects remain to be established. Here we identified that the pull-back maneuver led to better modiolar proximity than conventional insertion while maintaining a similar angular insertion depth. Notably, the reduced electrode-modiolus distance from the pull-back maneuver was associated with significantly lower impedances across electrodes postoperatively as well as reduced intraoperative electrophysiological thresholds than conventional insertion. Among adult cochlear implant recipients, this maneuver resulted in significantly better sentence recognition scores at three months postoperatively when compared to those with a conventional insertion; however, this benefit was not observed at later intervals. Collectively, slim modiolar electrodes with the pull-back maneuver further enhance the modiolar proximity, possibly leading to better open-set sentence recognition, at least in the early postoperative stage.Sang-Yeon LeeYoung Seok KimHyung Dong JoYoonjoong KimMarge CarandangGene HuhByung Yoon ChoiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Sang-Yeon Lee Young Seok Kim Hyung Dong Jo Yoonjoong Kim Marge Carandang Gene Huh Byung Yoon Choi Effects of in vivo repositioning of slim modiolar electrodes on electrical thresholds and speech perception
description	Abstract The slim modiolar electrode has been reported to ensure better modiolar proximity than previous conventional perimodiolar electrodes and consistently high scala tympani localization. Nonetheless, variability in modiolar proximity exists even among slim modiolar electrodes, still leaving room for further improvement of modiolar proximity, which may positively affect functional outcomes. Given this, the pull-back maneuver was reported to increase the modiolar proximity of slim modiolar electrodes in a cadaveric study, but in vivo repositioning effects remain to be established. Here we identified that the pull-back maneuver led to better modiolar proximity than conventional insertion while maintaining a similar angular insertion depth. Notably, the reduced electrode-modiolus distance from the pull-back maneuver was associated with significantly lower impedances across electrodes postoperatively as well as reduced intraoperative electrophysiological thresholds than conventional insertion. Among adult cochlear implant recipients, this maneuver resulted in significantly better sentence recognition scores at three months postoperatively when compared to those with a conventional insertion; however, this benefit was not observed at later intervals. Collectively, slim modiolar electrodes with the pull-back maneuver further enhance the modiolar proximity, possibly leading to better open-set sentence recognition, at least in the early postoperative stage.
format	article
author	Sang-Yeon Lee Young Seok Kim Hyung Dong Jo Yoonjoong Kim Marge Carandang Gene Huh Byung Yoon Choi
author_facet	Sang-Yeon Lee Young Seok Kim Hyung Dong Jo Yoonjoong Kim Marge Carandang Gene Huh Byung Yoon Choi
author_sort	Sang-Yeon Lee
title	Effects of in vivo repositioning of slim modiolar electrodes on electrical thresholds and speech perception
title_short	Effects of in vivo repositioning of slim modiolar electrodes on electrical thresholds and speech perception
title_full	Effects of in vivo repositioning of slim modiolar electrodes on electrical thresholds and speech perception
title_fullStr	Effects of in vivo repositioning of slim modiolar electrodes on electrical thresholds and speech perception
title_full_unstemmed	Effects of in vivo repositioning of slim modiolar electrodes on electrical thresholds and speech perception
title_sort	effects of in vivo repositioning of slim modiolar electrodes on electrical thresholds and speech perception
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/8a84d64a609f41839d9210669c7fce0f
work_keys_str_mv	AT sangyeonlee effectsofinvivorepositioningofslimmodiolarelectrodesonelectricalthresholdsandspeechperception AT youngseokkim effectsofinvivorepositioningofslimmodiolarelectrodesonelectricalthresholdsandspeechperception AT hyungdongjo effectsofinvivorepositioningofslimmodiolarelectrodesonelectricalthresholdsandspeechperception AT yoonjoongkim effectsofinvivorepositioningofslimmodiolarelectrodesonelectricalthresholdsandspeechperception AT margecarandang effectsofinvivorepositioningofslimmodiolarelectrodesonelectricalthresholdsandspeechperception AT genehuh effectsofinvivorepositioningofslimmodiolarelectrodesonelectricalthresholdsandspeechperception AT byungyoonchoi effectsofinvivorepositioningofslimmodiolarelectrodesonelectricalthresholdsandspeechperception
_version_	1718384242296094720

Effects of in vivo repositioning of slim modiolar electrodes on electrical thresholds and speech perception

Ejemplares similares