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In Ovo Electroporation in the Chicken Auditory Brainstem
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Update on Bone-Conduction Auditory Brainstem Responses: A Review.

Young Joon Seo1, Chanbeom Kwak2, Saea Kim2

  • 1Department of Otorhinolaryngology, Yonsei University Wonju College of Medicine, Wonju, Korea.

Journal of Audiology & Otology
|February 24, 2018
PubMed
Summary

Bone-conduction auditory brainstem responses (BC ABR) offer an objective hearing assessment alternative to air-conduction ABR. This review highlights BC ABR

Keywords:
AtresiaBone oscillatorBone-conduction auditory brainstem response

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Area of Science:

  • Audiology
  • Neuroscience
  • Hearing Science

Background:

  • Auditory brainstem responses (ABR) are a standard objective tool for assessing hearing sensitivity and diagnosing hearing loss and neurological disorders.
  • Air-conduction ABR (AC ABR) has limitations in certain clinical populations.
  • Bone-conduction ABR (BC ABR) presents a viable alternative but is underutilized due to lack of familiarity and routine protocols.

Purpose of the Study:

  • To review the limitations of AC ABR across all clinical populations.
  • To discuss the development and clinical application of BC ABR.
  • To examine optimal bone oscillator placements and stimuli for BC ABR in various age groups.

Main Methods:

  • Review of existing literature on AC ABR and BC ABR.
  • Analysis of optimal BC ABR parameters (oscillator placement, stimuli) for infants, children, and adults.
  • Inclusion of clinical data from infants and children with normal hearing and pathologies like congenital external auditory canal atresia.

Main Results:

  • AC ABR presents inherent weaknesses applicable to all patients.
  • BC ABR provides absolute thresholds and latencies comparable to AC ABR.
  • Clinical data demonstrates the utility of BC ABR in pediatric populations, including those with specific congenital conditions.

Conclusions:

  • BC ABR is a valuable, underutilized objective audiological assessment.
  • Optimal parameters for BC ABR in different age groups have been identified.
  • BC ABR is recommended for candidacy evaluations and for patients with bone-conduction hearing implants.