Spatial hearing in a child with auditory neuropathy spectrum disorder and bilateral cochlear implants

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2 Citations (Scopus)

Abstract

Objective: The neural dys-synchrony associated with auditory neuropathy spectrum disorder (ANSD) causes a temporal impairment that could degrade spatial hearing, particularly sound localization accuracy (SLA) and spatial release from masking (SRM). Unilateral cochlear implantation has become an accepted treatment for ANSD but treatment options for the contralateral ear remain controversial. We report spatial hearing measures in a child with ANSD before and after receiving a second cochlear implant (CI). Study sample: An 11-year-7-month old boy with ANSD and expressive and receptive language delay received a second CI eight years after his first implant. Design: The SLA and SRM were measured four months before sequential bilateral CIs (with the contralateral ear plugged and unplugged), and after nine months using both CIs. Results: Testing done before the second CI, with the first CI alone, suggested that residual hearing in the contralateral ear contributed to sound localization accuracy, but not word recognition in quiet or noise. Nine-months after receiving a second CI, SLA improved by 12.76° and SRM increased to 3.8-4.2 dB relative to pre-operative performance. Results were compared to published outcomes for children with bilateral CIs. Conclusions: The addition of a second CI in this child with ANSD improved spatial hearing.

Original languageEnglish (US)
Pages (from-to)400-408
Number of pages9
JournalInternational Journal of Audiology
Volume52
Issue number6
DOIs
StatePublished - Jun 1 2013

Fingerprint

Cochlear Implants
Sound Localization
Hearing
hearing (sound)
Ear
Language Development Disorders
Cochlear Implantation
cause
language
performance
Noise
Auditory neuropathy
Cochlear Implant
Therapeutics

All Science Journal Classification (ASJC) codes

  • Language and Linguistics
  • Linguistics and Language
  • Speech and Hearing

Cite this

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title = "Spatial hearing in a child with auditory neuropathy spectrum disorder and bilateral cochlear implants",
abstract = "Objective: The neural dys-synchrony associated with auditory neuropathy spectrum disorder (ANSD) causes a temporal impairment that could degrade spatial hearing, particularly sound localization accuracy (SLA) and spatial release from masking (SRM). Unilateral cochlear implantation has become an accepted treatment for ANSD but treatment options for the contralateral ear remain controversial. We report spatial hearing measures in a child with ANSD before and after receiving a second cochlear implant (CI). Study sample: An 11-year-7-month old boy with ANSD and expressive and receptive language delay received a second CI eight years after his first implant. Design: The SLA and SRM were measured four months before sequential bilateral CIs (with the contralateral ear plugged and unplugged), and after nine months using both CIs. Results: Testing done before the second CI, with the first CI alone, suggested that residual hearing in the contralateral ear contributed to sound localization accuracy, but not word recognition in quiet or noise. Nine-months after receiving a second CI, SLA improved by 12.76° and SRM increased to 3.8-4.2 dB relative to pre-operative performance. Results were compared to published outcomes for children with bilateral CIs. Conclusions: The addition of a second CI in this child with ANSD improved spatial hearing.",
author = "Patti Johnstone and Kelly Yeager and Emily Noss",
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AU - Yeager, Kelly

AU - Noss, Emily

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N2 - Objective: The neural dys-synchrony associated with auditory neuropathy spectrum disorder (ANSD) causes a temporal impairment that could degrade spatial hearing, particularly sound localization accuracy (SLA) and spatial release from masking (SRM). Unilateral cochlear implantation has become an accepted treatment for ANSD but treatment options for the contralateral ear remain controversial. We report spatial hearing measures in a child with ANSD before and after receiving a second cochlear implant (CI). Study sample: An 11-year-7-month old boy with ANSD and expressive and receptive language delay received a second CI eight years after his first implant. Design: The SLA and SRM were measured four months before sequential bilateral CIs (with the contralateral ear plugged and unplugged), and after nine months using both CIs. Results: Testing done before the second CI, with the first CI alone, suggested that residual hearing in the contralateral ear contributed to sound localization accuracy, but not word recognition in quiet or noise. Nine-months after receiving a second CI, SLA improved by 12.76° and SRM increased to 3.8-4.2 dB relative to pre-operative performance. Results were compared to published outcomes for children with bilateral CIs. Conclusions: The addition of a second CI in this child with ANSD improved spatial hearing.

AB - Objective: The neural dys-synchrony associated with auditory neuropathy spectrum disorder (ANSD) causes a temporal impairment that could degrade spatial hearing, particularly sound localization accuracy (SLA) and spatial release from masking (SRM). Unilateral cochlear implantation has become an accepted treatment for ANSD but treatment options for the contralateral ear remain controversial. We report spatial hearing measures in a child with ANSD before and after receiving a second cochlear implant (CI). Study sample: An 11-year-7-month old boy with ANSD and expressive and receptive language delay received a second CI eight years after his first implant. Design: The SLA and SRM were measured four months before sequential bilateral CIs (with the contralateral ear plugged and unplugged), and after nine months using both CIs. Results: Testing done before the second CI, with the first CI alone, suggested that residual hearing in the contralateral ear contributed to sound localization accuracy, but not word recognition in quiet or noise. Nine-months after receiving a second CI, SLA improved by 12.76° and SRM increased to 3.8-4.2 dB relative to pre-operative performance. Results were compared to published outcomes for children with bilateral CIs. Conclusions: The addition of a second CI in this child with ANSD improved spatial hearing.

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