Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Programa de Pós-Graduação do Departamento de Oftalmologia, Otorrinolaringologia, Cirurgia de Cabeça e Pescoço, Ribeirão Preto, SP, Brazil; Oticon Medical, Departamento Clínico, São Paulo, SP, Brazil.
Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Departamento de Ciências da Saúde, RCS, Ribeirão Preto, SP, Brazil.
Braz J Otorhinolaryngol. 2022 Nov-Dec;88 Suppl 1(Suppl 1):S108-S117. doi: 10.1016/j.bjorl.2021.04.012. Epub 2021 May 14.
Electrically evoked auditory brainstem responses provide reliable clinical information to assist professionals in the auditory rehabilitation of cochlear implant users.
This study aimed to investigate intraoperative evoked auditory brainstem response recordings in Evo®-cochlear implant electrode array recipients and its correlation with their behavioral levels and auditory performance.
This is a retrospectivey study. Intraoperative evoked auditory brainstem responses were recorded in adult Evo®-cochlear implant electrode array recipients. Wave V latencies, amplitudes and interpeak III-V intervals were recorded in three different electrode locations and compared to the sentence recognition scores obtained from subjects after six months of device use. Evoked auditory brainstem responses thresholds were also recorded and compared to the behaviorally determined levels of the subjects in the sound processor activation.
Evoked auditory brainstem responses thresholds were significantly correlated with both, behavioral T- and C-levels and they were recorded at audible electrical stimulation levels in all subjects. There was a significant correlation between interpeak III-V interval recorded in the apical electrode and sentence recognition scores of the subjects.
Intraoperative evoked auditory brainstem responses can be used to establish audible levels for fitting the sound processor in Evo®-cochlear implant recipients and it could help professionals to plan further actions aiming to improve their auditory performance.
电诱发听觉脑干反应为人工耳蜗使用者的听觉康复提供了可靠的临床信息,以协助专业人员进行。
本研究旨在调查 Evo®-人工耳蜗电极阵列受者术中诱发听觉脑干反应记录及其与行为水平和听觉表现的相关性。
这是一项回顾性研究。对成人 Evo®-人工耳蜗电极阵列受者进行术中电诱发听觉脑干反应记录。在三个不同的电极位置记录波 V 潜伏期、振幅和峰 III-V 间期,并与受者在设备使用六个月后获得的句子识别分数进行比较。还记录了诱发电听觉脑干反应阈值,并与受者在声音处理器激活时的行为确定水平进行比较。
诱发电听觉脑干反应阈值与行为 T 级和 C 级均显著相关,并且在所有受者中均在可听电刺激水平下记录到。在尖端电极记录的峰 III-V 间期与受者的句子识别得分显著相关。
术中诱发电听觉脑干反应可用于为 Evo®-人工耳蜗受者的声音处理器设定可听水平,并有助于专业人员计划进一步行动,以提高他们的听觉表现。