Cortical auditory responses according to hearing rehabilitation in unilateral hearing loss

Legris, E.; Roux, Sylvie; Aoustin, Jean-Marie; Galvin, John J.; Bakhos, D.

doi:10.1016/j.anorl.2019.08.001

Cited by 4 publications

(3 citation statements)

References 47 publications

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“…Cochlear implantation for SSD has an effect on these changes in the auditory cortex. Legris et al (2018Legris et al ( , 2019 investigated the CAEP (evoked by speech-in-noise stimuli, binaurally presented in the free field) in eight NH controls and in nine SSD subjects before cochlear implantation, and 6 and 12 months after implantation. The CAEP amplitude at the mastoid contralateral to the deaf ear increased within SSD subjects after cochlear implantation.…”

Section: Single-sided Deafness and Cochlear Implantationmentioning

confidence: 99%

The Acoustic Change Complex Compared to Hearing Performance in Unilaterally and Bilaterally Deaf Cochlear Implant Users

et al. 2022

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Objectives: Clinical measures evaluating hearing performance in cochlear implant (CI) users depend on attention and linguistic skills, which limits the evaluation of auditory perception in some patients. The acoustic change complex (ACC), a cortical auditory evoked potential to a sound change, might yield useful objective measures to assess hearing performance and could provide insight in cortical auditory processing. The aim of this study is to examine the ACC in response to frequency changes as an objective measure for hearing performance in CI users.Design: Thirteen bilaterally deaf and six single-sided deaf subjects were included, all having used a unilateral CI for at least 1 year. Speech perception was tested with a consonant-vowel-consonant test (+10 dB signal-to-noise ratio) and a digits-in-noise test. Frequency discrimination thresholds were measured at two reference frequencies, using a 3-interval, 2-alternative forced-choice, adaptive staircase procedure. The two reference frequencies were selected using each participant's frequency allocation table and were centered in the frequency band of an electrode that included 500 or 2000 Hz, corresponding to the apical electrode or the middle electrode, respectively. The ACC was evoked with pure tones of the same two reference frequencies with varying frequency increases: within the frequency band of the middle or the apical electrode (+0.25 electrode step), and steps to the center frequency of the first (+1), second (+2), and third (+3) adjacent electrodes.Results: Reproducible ACCs were recorded in 17 out of 19 subjects. Most successful recordings were obtained with the largest frequency change (+3 electrode step). Larger frequency changes resulted in shorter N1 latencies and larger N1-P2 amplitudes. In both unilaterally and bilaterally deaf subjects, the N1 latency and N1-P2 amplitude of the CI ears correlated to speech perception as well as frequency discrimination, that is, short latencies and large amplitudes were indicative of better speech perception and better frequency discrimination. No significant differences in ACC latencies or amplitudes were found between the CI ears of the unilaterally and bilaterally deaf subjects, but the CI ears of the unilaterally deaf subjects showed substantially longer latencies and smaller amplitudes than their contralateral normal-hearing ears. Conclusions:The ACC latency and amplitude evoked by tone frequency changes correlate well to frequency discrimination and speech perception capabilities of CI users. For patients unable to reliably perform behavioral tasks, the ACC could be of added value in assessing hearing performance.

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Section: Single-sided Deafness and Cochlear Implantationmentioning

confidence: 99%

The Acoustic Change Complex Compared to Hearing Performance in Unilaterally and Bilaterally Deaf Cochlear Implant Users

et al. 2022

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“…The studies were done in the UK [ 13 ], USA [ 21 ], Canada [ 17 , 23 ], China [ 6 , 26 ], Germany [ 27 ], the Netherlands [ 7 , 11 , 14 , 18 , 19 , 20 , 22 ], Sweden [ 8 ], Australia [ 15 ], France [ 24 , 28 ], Italy [ 16 ], Poland [ 9 , 10 ], and Austria [ 25 ]. Patients of all ages are included in these studies, and both congenital and acquired UCHL are included.…”

Section: Resultsmentioning

confidence: 99%

“…One compared ADHEAR with Ponto on softband aids [13], and one compared BoneBridge with Vibrant SoundBridge (VSB) [7], one compared ADHEAR with BAHA5 on softband [15]. The studies were done in the UK [13], USA [21], Canada [17,23], China [6,26], Germany [27], the Netherlands [7,11,14,[18][19][20]22], Sweden [8], Australia [15], France [24,28], Italy [16], Poland [9,10], and Austria [25]. Patients of all ages are included in these studies, and both congenital and acquired UCHL are included.…”

Section: General Characteristics Of the Studiesmentioning

confidence: 99%

The Effects of BCDs in Unilateral Conductive Hearing Loss: A Systematic Review

Wang,

Ren,

Xie

et al. 2023

JCM

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Bone conduction devices (BCDs) are widely used in the treatment of conductive hearing loss (CHL), but their applications on unilateral CHL (UCHL) patients remain controversial. To evaluate the effects of BCDs in UCHL, a systematic search was undertaken until May 2023 following the PRISMA guidelines. Among the 391 references, 21 studies met the inclusion criteria and were ultimately selected for review. Data on hearing thresholds, speech recognition, sound localization, and subjective questionnaire outcomes were collected and summarized. Moderate hearing threshold improvements were found in UCHL patients aided with BCDs. Their speech recognition abilities improved significantly. However, sound localization results showed wide individual variations. According to subjective questionnaires, BCDs had an overall positive influence on the daily life of UCHL patients, although several unfavorable experiences were reported by some of them. We concluded that the positive audiological benefits and subjective questionnaire results have made BCDs a credible intervention for UCHL patients. Before final implantations, UCHL patients should first go through a period of time when they were fitted with non-implantable BCDs as a trial.

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Objective and subjective efficacy of hearing aids in patients with mild-to-moderate unilateral hearing loss: a prospective study

Kim,

Choo,

et al. 2023

Eur Arch Otorhinolaryngol

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Cortical auditory responses according to hearing rehabilitation in unilateral hearing loss

Cited by 4 publications

References 47 publications

The Acoustic Change Complex Compared to Hearing Performance in Unilaterally and Bilaterally Deaf Cochlear Implant Users

The Acoustic Change Complex Compared to Hearing Performance in Unilaterally and Bilaterally Deaf Cochlear Implant Users

The Effects of BCDs in Unilateral Conductive Hearing Loss: A Systematic Review

Objective and subjective efficacy of hearing aids in patients with mild-to-moderate unilateral hearing loss: a prospective study

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