Cochlear Implant in Patients with Asymmetric Hearing Loss: Reporting and Discussing the Benefits in Speech Perception, Speech Reception Threshold, Squelch Abilities and the Patients Reported Outcomes

Objective To investigate the influence of cochlear implant (CI) use on subjective benefits in quality of life in cases of asymmetric hearing loss (AHL). Study Design Prospective clinical trial. Setting Tertiary academic center. Subjects and Methods Subjects included CI recipients with AHL (n = 20), defined as moderate-to-profound hearing loss in the affected ear and mild-to-moderate hearing loss in the contralateral ear. Quality of life was assessed with the Speech, Spatial, and Qualities of Hearing Scale (SSQ) pragmatic subscales, which assess binaural benefits. Subjective benefit on the pragmatic subscales was compared to word recognition in quiet and spatial hearing abilities (ie, masked sentence recognition and localization). Results Subjects demonstrated an early, significant improvement ( P < .01) in abilities with the CI as compared to preoperative abilities on the SSQ pragmatic subscales by the 1-month interval. Perceived abilities were either maintained or continued to improve over the study period. There were no significant correlations between results on the Speech in Quiet subscale and word recognition in quiet, the Speech in Speech Contexts subscale and masked sentence recognition, or the Localization subscale and sound field localization. Conclusions CI recipients with AHL report a significant improvement in quality of life as measured by the SSQ pragmatic subscales over preoperative abilities. Reported improvements are observed as early as 1 month postactivation, which likely reflect the binaural benefits of listening with bimodal stimulation (CI and contralateral hearing aid). The SSQ pragmatic subscales may provide a more in-depth insight into CI recipient experience as compared to behavioral sound field measures alone.

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Cochlear implant treatment of patients with single-sided deafness or asymmetric hearing loss

HNO ◽

10.1007/s00106-016-0297-5 ◽

2017 ◽

Vol 65 (S2) ◽

pp. 98-108 ◽

Cited By ~ 39

Author(s):

S. Arndt ◽

R. Laszig ◽

A. Aschendorff ◽

F. Hassepass ◽

R. Beck ◽

...

Keyword(s):

Hearing Loss ◽

Cochlear Implant ◽

Single Sided Deafness ◽

Asymmetric Hearing Loss ◽

Implant Treatment

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Cochlear implantation restores cortical processing for spatial hearing in asymmetric hearing loss

10.1101/2021.12.22.21268180 ◽

2021 ◽

Author(s):

Chadlia Karoui ◽

Kuzma Strelnikov ◽

Pierre Payoux ◽

Anne-Sophie Salabert ◽

Chris James ◽

...

Keyword(s):

Hearing Loss ◽

Cochlear Implant ◽

Cochlear Implantation ◽

Spatial Hearing ◽

Cortical Activity ◽

Asymmetry Index ◽

Hemispheric Dominance ◽

Sound Localisation ◽

Monaural Stimulation ◽

Asymmetric Hearing Loss

In asymmetric hearing loss (AHL), the normal pattern of contralateral hemispheric dominance for monaural stimulation is modified, with a shift towards the hemisphere ipsilateral to the better ear. The extent of this shift has been shown to relate to sound localisation deficits. In this study, we examined whether cochlear implantation to treat AHL can restore the normal functional pattern of auditory cortical activity and whether this relates to improved sound localisation. We recruited 10 subjects with a cochlear implant for AHL (AHL-CI) and 10 normally-hearing controls. The participants performed a voice/non-voice discrimination task with binaural and monaural presentation of the sounds, and the cortical activity was measured using positron emission tomography (PET) brain imaging with a H215O tracer. The auditory cortical activity was found to be lower in the AHL-CI participants for all of the conditions. A cortical asymmetry index was calculated and showed that a normal contralateral dominance was restored in the AHL-CI patients for the non-implanted ear, but not for the ear with the cochlear implant. It was found that the contralateral dominance for the non-implanted ear strongly correlated with sound localisation performance (rho = 0.8, p < 0.05). We conclude that the restoration of binaural mechanisms in AHL-CI subjects reverses the abnormal lateralisation pattern induced by the deafness, and that this leads to improved spatial hearing. Our results suggest that cochlear implantation fosters the rehabilitation of binaural excitatory/inhibitory cortical interactions, which could enable the reconstruction of the auditory spatial selectivity needed for sound localisation.

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Results for Chinese and English in a Multichannel Cochlear Implant Patient

Annals of Otology Rhinology & Laryngology ◽

10.1177/00034894870960s167 ◽

1987 ◽

Vol 96 (1_suppl) ◽

pp. 126-127 ◽

Cited By ~ 15

Author(s):

S. A. Xu ◽

R. C. Dowell ◽

G. M. Clark

Keyword(s):

Hearing Loss ◽

Speech Perception ◽

Cochlear Implant ◽

Chinese Patient ◽

Cochlear Prosthesis ◽

Word Test ◽

Open Set ◽

Chinese And English ◽

Speech Tracking

A multichannel cochlear prosthesis was implanted in a Chinese patient who suffered from profound sensory hearing loss. The preoperative Minimal Auditory Capabilities (MAC) battery tests in English, as well as an open set bisyllable word test, an open set sentence test, and speech tracking in Chinese indicated significant improvement of speech perception for both English and Chinese after the operation. Substantial understanding of running speech was possible in both languages without the help of lipreading.

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Predicting speech perception outcomes following cochlear implantation in adults with unilateral deafness or highly asymmetric hearing loss

Cochlear Implants International ◽

10.1080/14670100.2016.1155806 ◽

2016 ◽

Vol 17 (sup1) ◽

pp. 51-54 ◽

Cited By ~ 5

Author(s):

Pádraig T. Kitterick ◽

Laura Lucas

Keyword(s):

Hearing Loss ◽

Speech Perception ◽

Cochlear Implantation ◽

Unilateral Deafness ◽

Asymmetric Hearing Loss

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Considerations for Pediatric Cochlear Implant Recipients With Unilateral or Asymmetric Hearing Loss: Assessment, Device Fitting, and Habilitation

American Journal of Audiology ◽

10.1044/2016_aja-16-0051 ◽

2017 ◽

Vol 26 (2) ◽

pp. 91-98 ◽

Cited By ~ 13

Author(s):

Laura Greaver ◽

Hannah Eskridge ◽

Holly F. B. Teagle

Keyword(s):

Hearing Loss ◽

Cochlear Implant ◽

Cochlear Implantation ◽

Clinical Report ◽

Loss Assessment ◽

Profound Hearing Loss ◽

Single Sided Deafness ◽

Asymmetric Hearing Loss ◽

Case Basis ◽

Moderate Hearing Loss

Purpose The purpose of this clinical report is to present case studies of children who are nontraditional candidates for cochlear implantation because they have significant residual hearing in 1 ear and to describe outcomes and considerations for their audiological management and habilitation. Method Case information is presented for 5 children with profound hearing loss in 1 ear and normal or mild-to-moderate hearing loss in the opposite ear and who have undergone unilateral cochlear implantation. Pre- and postoperative assessments were performed per typical clinic routines with modifications described. Postimplant habilitation was customized for each recipient using a combination of traditional methods, newer technologies, and commercial materials. Results The 5 children included in this report are consistent users of their cochlear implants and demonstrate speech recognition in the implanted ear when isolated from the better hearing ear. Conclusions Candidacy criteria for cochlear implantation are evolving. Children with single-sided deafness or asymmetric hearing loss who have traditionally not been considered candidates for cochlear implantation should be evaluated on a case-by-case basis. Audiological management of these recipients is not vastly different compared with children who are traditional cochlear implant recipients. Assessment and habilitation techniques must be modified to isolate the implanted ear to obtain accurate results and to provide meaningful therapeutic intervention.

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A Survey of Speech Perception Tests for Children with Hearing Loss Used in Cochlear Implant Centers in Korea

Korean Journal of Otorhinolaryngology - Head and Neck Surgery ◽

10.3342/kjorl-hns.2010.53.9.534 ◽

2010 ◽

Vol 53 (9) ◽

pp. 534 ◽

Cited By ~ 1

Author(s):

Young-Mee Lee ◽

Lee-Suk Kim ◽

Sung-Wook Jeong

Keyword(s):

Hearing Loss ◽

Speech Perception ◽

Cochlear Implant ◽

Children With Hearing Loss

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Cochlear Implant Outcomes for Children With Auditory Neuropathy Spectrum Disorder

Perspectives on Hearing and Hearing Disorders in Childhood ◽

10.1044/hhdc19.2.75 ◽

2009 ◽

Vol 19 (2) ◽

pp. 75-84 ◽

Cited By ~ 6

Author(s):

Jaime Leigh ◽

Gary Rance ◽

Shani Dettman ◽

Richard Dowell

Keyword(s):

Hearing Loss ◽

Speech Perception ◽

Cochlear Implant ◽

Cochlear Implants ◽

Auditory Neuropathy ◽

Cochlear Nerve ◽

Spectrum Disorder ◽

Language Outcomes ◽

Outcomes For Children ◽

Cochlear Nerve Deficiency

Abstract Cochlear implantation is currently the intervention option of choice for many children with auditory neuropathy spectrum disorder (ANSD) who are unable to obtain benefit from conventional amplification. The aim of this study was to review the speech perception and language outcomes for children with ANSD who had received a cochlear implant and highlight specific clinical considerations for working with this population of children with hearing impairment who are being considered for implantation. Finds for the group of 17 children with ANSD using cochlear implants were compared to previously reported outcomes for children with sensori-neural (SN) type hearing loss using cochlear implants. Two children, identified with cochlear nerve deficiency pre-operatively, received no useful auditory percepts from their cochlear implant and discontinued device use. The remaining children demonstrated speech perception and language outcomes comparable to those observed for SN hearing loss peers using cochlear implants. This paper highlights a number of considerations for clinicians to be aware of and the importance of careful counseling pre-operatively regarding the potential for less-than-optimal outcomes, particularly for those children identified with cochlear nerve deficiency.

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