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Electrically evoked auditory potentials: current clinical applications in children with cochlear implants

P R Kileny1, T A Zwolan, A Boerst

  • 1Department of Otolaryngology-Head and Neck Surgery, University of Michigan Medical Center, Ann Arbor, USA.

The American Journal of Otology
|December 10, 1997
PubMed
Summary

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Auditory evoked potentials (AEPs) are crucial for cochlear implant success. These tests ensure proper device function and effective sound stimulation in children.

Area of Science:

  • Neuroscience
  • Audiology
  • Biomedical Engineering

Background:

  • Cochlear implants are vital for hearing restoration in children with severe to profound hearing loss.
  • Auditory evoked potentials (AEPs) play a critical role in assessing auditory pathway function.

Purpose of the Study:

  • To review the current applications of auditory evoked potentials (AEPs) in pediatric cochlear implant recipients and candidates.
  • To highlight the utility of AEPs in optimizing cochlear implant outcomes.

Main Methods:

  • Perioperative transtympanic electrocochleography (ECochG) and auditory brainstem responses (ABRs) are used for ear selection and assessing electrical stimulability.
  • Intraoperative and postoperative ABRs, along with averaged electrode voltages, are employed to verify implant function and adjust stimulation parameters.

Related Experiment Videos

  • Postoperative cognitive evoked potentials to speech and tonal stimuli can also be obtained.

    • Main Results:

    • Electrocochleography and ABRs have demonstrated effectiveness in guiding implant placement and ensuring proper device function.
    • Significant correlations were observed between speech recognition abilities and cognitive evoked potentials.
    • AEP measurements contribute to the successful fitting and performance of cochlear implants.

    Conclusions:

    • Auditory evoked potentials are essential for confirming appropriate cochlear implant function.
    • These electrophysiological measures facilitate effective stimulus delivery, optimizing auditory rehabilitation in children.
    • AEPs aid in personalized device programming for improved speech perception outcomes.