[Application of extra- and intracochlear electrocochleography during and after cochlear implantation].

Anwendung der extra- und intracochleären Elektrocochleographie während und nach der Cochleaimplantation.

Cochlear function Cochlear implant Electrocochleography Hearing loss Residual hearing

Journal

HNO

ISSN: 1433-0458

Titre abrégé: HNO

Pays: Germany

ID NLM: 2985099R

Informations de publication

Date de publication:
18 May 2024

Historique:

accepted: 19 03 2024

medline: 18 5 2024

pubmed: 18 5 2024

entrez: 18 5 2024

Statut: aheadofprint

Résumé

Electrocochleography (ECochG) represents a promising approach for monitoring cochlear function during cochlear implantation and for investigating the causes of residual cochlear function loss after implantation. This paper provides an overview of the current research and application status of ECochG, both during and after cochlear implantation. Intraoperative ECochG can be conducted either via the implant itself or an extracochlear measuring electrode. Postoperative ECochG recordings are also feasible via the implant. Various studies have demonstrated that a significant decrease in ECochG amplitude during electrode insertion correlates with an increased risk of losing residual cochlear function, with critical cochlear events occurring primarily towards the end of the insertion. Postoperative data suggest that the loss of cochlear function mainly occurs in the early postoperative phase. Future research directions include the automation and objectification of signal analysis, as well as a more in-depth investigation into the underlying mechanisms of these signal changes. Die Elektrocochleographie (ECochG) bietet eine aussichtsreiche Möglichkeit zur Überwachung der cochleären Funktion während der Cochleaimplantation und zur Erforschung der Ursachen des Verlusts cochleärer Restfunktion nach der Implantation. Die vorliegende Arbeit gibt einen Überblick über den aktuellen Forschungs- und Anwendungsstand der ECochG, sowohl während als auch nach der Cochleaimplantation. Die intraoperative ECochG kann entweder durch das Implantat selbst oder mittels einer extracochleären Messelektrode durchgeführt werden. Postoperative ECochG-Aufnahmen sind über das Implantat möglich. Verschiedene Studien haben gezeigt, dass ein signifikanter Abfall der ECochG-Amplitude während der Elektrodeninsertion mit einem erhöhten Risiko für den Verlust der cochleären Restfunktion korreliert, wobei bedeutsame cochleäre Ereignisse vornehmlich gegen Ende der Insertion auftreten. Postoperative Daten deuten darauf hin, dass der Verlust der cochleären Funktion hauptsächlich in der frühen postoperativen Phase erfolgt. Zukünftige Forschungsansätze umfassen die Automatisierung und Objektivierung der Signalauswertung sowie eine vertiefte Untersuchung der den Signaländerungen zugrunde liegenden Mechanismen.

Autres résumés

Type: Publisher (ger)

Die Elektrocochleographie (ECochG) bietet eine aussichtsreiche Möglichkeit zur Überwachung der cochleären Funktion während der Cochleaimplantation und zur Erforschung der Ursachen des Verlusts cochleärer Restfunktion nach der Implantation. Die vorliegende Arbeit gibt einen Überblick über den aktuellen Forschungs- und Anwendungsstand der ECochG, sowohl während als auch nach der Cochleaimplantation. Die intraoperative ECochG kann entweder durch das Implantat selbst oder mittels einer extracochleären Messelektrode durchgeführt werden. Postoperative ECochG-Aufnahmen sind über das Implantat möglich. Verschiedene Studien haben gezeigt, dass ein signifikanter Abfall der ECochG-Amplitude während der Elektrodeninsertion mit einem erhöhten Risiko für den Verlust der cochleären Restfunktion korreliert, wobei bedeutsame cochleäre Ereignisse vornehmlich gegen Ende der Insertion auftreten. Postoperative Daten deuten darauf hin, dass der Verlust der cochleären Funktion hauptsächlich in der frühen postoperativen Phase erfolgt. Zukünftige Forschungsansätze umfassen die Automatisierung und Objektivierung der Signalauswertung sowie eine vertiefte Untersuchung der den Signaländerungen zugrunde liegenden Mechanismen.

Identifiants

DOI: 10.1007/s00106-024-01481-4 PMID: 38761228

pubmed: 38761228

doi: 10.1007/s00106-024-01481-4

pii: 10.1007/s00106-024-01481-4

doi:

Types de publication

English Abstract Journal Article Review

Langues

ger

Sous-ensembles de citation

Informations de copyright

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