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Related Experiment Videos

Electrically evoked auditory brain-stem response in pediatric patients with cochlear implants

P R Kileny1, T A Zwolan, S Zimmerman-Phillips

  • 1Department of Otolaryngology, University of Michigan Medical Center, Ann Arbor.

Archives of Otolaryngology--Head & Neck Surgery
|October 1, 1994
PubMed
Summary

Preoperative transtympanic electrically evoked auditory brain-stem response (EABR) is feasible in pediatric cochlear implant candidates. This test helps assess electrical excitability before surgery, aiding in patient selection.

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Area of Science:

  • Audiology
  • Neuroscience
  • Medical Engineering

Background:

  • Cochlear implantation is a critical intervention for pediatric hearing loss.
  • Accurate patient selection is paramount for successful cochlear implant outcomes.
  • Preoperative assessment of auditory nerve function is essential for pediatric candidates.

Observation:

  • This study investigated the feasibility and clinical applicability of preoperative transtympanic electrically evoked auditory brain-stem response (EABR) in pediatric cochlear implant candidates.
  • The study included 43 patients aged 2.5 to 14.5 years undergoing cochlear implantation.
  • EABR was recorded using transtympanic and subdermal electrodes before surgery.

Findings:

  • EABR was successfully obtained in 41 of 43 pediatric patients.

Related Experiment Videos

  • Mean EABR thresholds were 406.5 µA for patent cochleas and 472 µA for ossified cochleas.
  • Mean wave V latency at threshold was 4.69 ms.

    • Implications:

    • Preoperative EABR is a valuable tool for assessing the auditory nerve in pediatric cochlear implant candidates.
    • Findings support the integration of EABR into the preoperative selection process.
    • This technique can optimize surgical planning and improve outcomes for children with hearing loss.