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CC BY-NC-ND 4.0 · Int Arch Otorhinolaryngol 2023; 27(03): e518-e527
DOI: 10.1055/s-0042-1744172
Systematic Review

The P300 Auditory Evoked Potential in Cochlear Implant Users: A Scoping Review

Authors

  • Maria Stella Arantes do Amaral 

    1   Department of Ophthalmology, Otorhinolaryngology, and Head and Neck Surgery, Hospital das Clínicas, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, São Paulo, SP, Brazil

  • Nelma Ellen Zamberlan-Amorin 

    2   Centro Especializado de Otorrinolaringologia e Fonoaudiologia (CEOF), Hospital das Clínicas, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, São Paulo, Brazil

  • Karina Dal Sasso Mendes 

    3   Department of General and Specialized Nursing, Faculdade de Enfermagem de Ribeirão Preto, Universidade de São Paulo, São Paulo, Brazil

  • Sarah Carolina Bernal 

    4   Health Sciences Department, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, São Paulo, Brazil

  • Eduardo Tanaka Massuda 

    5   Department of Ophthalmology, Otorhinolaryngology, and Head and Neck Surgery, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, São Paulo, Brazil

  • Miguel Angelo Hyppolito 

    5   Department of Ophthalmology, Otorhinolaryngology, and Head and Neck Surgery, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, São Paulo, Brazil

  • Ana Cláudia Mirândola Barbosa Reis 

    4   Health Sciences Department, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, São Paulo, Brazil

Funding Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES).
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Abstract

Introduction The P300 auditory evoked potential is a long-latency cortical potential evoked with auditory stimulation, which provides information on neural mechanisms underlying the central auditory processing.

Objectives To identify and gather scientific evidence regarding the P300 in adult cochlear implant (CI) users.

Data Synthesis A total of 87 articles, 20 of which were selected for this study, were identified and exported to the Rayyan search software. Those 20 articles did not propose a homogeneous methodology, which made comparison more difficult. Most articles (60%) in this review compare CI users with typical hearing people, showing prolonged P300 latency in CI users. Among the studies, 35% show that CI users present a smaller P300 amplitude. Another variable is the influence of the kind of stimulus used to elicit P300, which was prolonged in 30% of the studies that used pure tone stimuli, 10% of the studies that used pure tone and speech stimuli, and 60% of the studies that used speech stimuli.

Conclusion This review has contributed with evidence that shows the importance of applying a controlled P300 protocol to diagnose and monitor CI users. Regardless of the stimuli used to elicit P300, we noticed a pattern in the increase in latency and decrease in amplitude in CI users. The user's experience with the CI speech processor over time and the speech test results seem to be related to the P300 latency and amplitude measurements.

Keywords

auditory evoked potential - cochlear implant - electrophysiology - neuronal plasticity - audiology


Publikationsverlauf

Eingereicht: 11. April 2021

Angenommen: 23. Januar 2022

Artikel online veröffentlicht:
11. Juli 2022

© 2022. Fundação Otorrinolaringologia. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commecial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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