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Performance After Cochlear Reimplantation Using a Different Manufacturer.

Justin Cottrell1, Emily Spitzer1, Arianna Winchester1

  • 1Department of Otolaryngology-Head and Neck Surgery, NYU Langone, New York, New York.

Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [And] European Academy of Otology and Neurotology
|September 12, 2024
PubMed
Summary

Cochlear implant (CI) reimplantation with a different manufacturer results in comparable speech performance. Patients achieved similar consonant-nucleus-consonant (CNC) scores after switching devices, indicating successful outcomes.

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Area of Science:

  • Audiology
  • Otorhinolaryngology
  • Biomedical Engineering

Background:

  • Cochlear implant (CI) reimplantation is sometimes necessary due to device failure or technological advancements.
  • Understanding the impact of switching CI manufacturers on hearing outcomes is crucial for patient management.

Purpose of the Study:

  • To evaluate cochlear implant (CI) performance after reimplantation with a different device manufacturer.
  • To compare speech recognition scores before and after reimplantation across different CI brands.

Main Methods:

  • Multisite retrospective review of 29 patients who underwent CI reimplantation with a different manufacturer.
  • Analysis of consonant-nucleus-consonant (CNC) scores as the primary outcome measure.
  • Focus on adult patients due to limitations in pediatric speech testing comparability.

Main Results:

  • Adult patients' best average CNC scores post-primary CI implantation were 46.2%, dropping to 19.2% before reimplantation.
  • Post-reimplantation, average CNC scores improved to 48.3% (3-6 months) and 44.4% (long-term).
  • No statistically significant difference was found between best pre-reimplantation and post-reimplantation CNC scores.

Conclusions:

  • Cochlear implant (CI) reimplantation with a different manufacturer yields comparable speech recognition performance.
  • Patients can expect similar or improved outcomes after switching CI devices.
  • This study supports the viability of device switching for improved CI function.