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Related Experiment Video

Updated: Jul 19, 2026

Performing Intracochlear Electrocochleography During Cochlear Implantation
09:10

Performing Intracochlear Electrocochleography During Cochlear Implantation

Published on: March 8, 2022

Cochlear implantation in the irradiated temporal bone.

O F Adunka1, C A Buchman

  • 1Department of Otolaryngology, Head & Neck Surgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-7600, USA.

The Journal of Laryngology and Otology
|October 17, 2006
PubMed
Summary

Cochlear implantation is feasible in patients with bilateral temporal bone osteoradionecrosis, even after extensive surgery. This hearing restoration offers excellent speech understanding, suggesting central auditory pathways remain viable post-radiation.

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Area of Science:

  • Otolaryngology
  • Neurosurgery
  • Audiology

Background:

  • Osteoradionecrosis of the temporal bone presents significant challenges for hearing restoration.
  • Cochlear implantation is a potential option for profound hearing loss in these complex cases.

Observation:

  • A case report details a 66-year-old woman with bilateral temporal bone osteoradionecrosis post-tonsillar cancer treatment.
  • The patient underwent cochlear implantation on an ear with prior canal wall down mastoidectomy, temporal bone resection, and free flap reconstruction.
  • Surgical findings included a dehiscent facial nerve and fibrosis, but minimal cochlear reaction allowed full electrode insertion.

Findings:

  • The patient achieved a 54% consonant-nucleus-consonant word score at three months post-implantation.

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Performing Repeated Intraoperative Impedance Telemetry Measurements during Cochlear Implantation
06:54

Performing Repeated Intraoperative Impedance Telemetry Measurements during Cochlear Implantation

Published on: August 4, 2023

Related Experiment Videos

Last Updated: Jul 19, 2026

Performing Intracochlear Electrocochleography During Cochlear Implantation
09:10

Performing Intracochlear Electrocochleography During Cochlear Implantation

Published on: March 8, 2022

Performing Repeated Intraoperative Impedance Telemetry Measurements during Cochlear Implantation
06:54

Performing Repeated Intraoperative Impedance Telemetry Measurements during Cochlear Implantation

Published on: August 4, 2023

  • This demonstrates successful open-set speech understanding with the cochlear implant.

    • Implications:

    • Cochlear implantation is feasible in select patients with radiation-induced hearing loss and temporal bone osteoradionecrosis.
    • Careful surgical planning is crucial to mitigate risks like wound healing complications, electrode insertion issues, and facial nerve injury.
    • Radiation may not always preclude successful central auditory pathway function for hearing rehabilitation.