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Related Experiment Videos

Cochlear implant performance after reimplantation: a multicenter study

A M Henson1, W H Slattery, W M Luxford

  • 1The House Ear Institute and Clinic, Los Angeles, California 90057, USA.

The American Journal of Otology
|January 26, 1999
PubMed
Summary
This summary is machine-generated.

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Replacement cochlear implants can significantly alter auditory performance, with outcomes varying widely. Patients should be counseled on potential changes in sound quality and speech recognition after reimplantation.

Area of Science:

  • Audiology
  • Biomedical Engineering
  • Neurosurgery

Background:

  • Cochlear implants (CIs) are vital for restoring hearing in severe to profound sensorineural hearing loss.
  • Device failure necessitates reimplantation, raising questions about performance consistency.

Purpose of the Study:

  • To compare auditory performance between original and replacement Nucleus 22 cochlear implants.
  • To evaluate objective and subjective outcomes following CI reimplantation.

Main Methods:

  • Retrospective chart review of 28 adults across 18 U.S. CI programs.
  • Objective speech discrimination tests (sentence and word) and subjective patient questionnaires were used.

Main Results:

  • 37% of patients showed improved scores, 26% had no change, and 37% experienced poorer scores with replacement CIs.

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  • Subjectively, 57% found replacement device performance better or same; 43% reported poorer performance.
  • No correlation found between outcomes and device failure cause, duration, surgical factors, or patient demographics.

    • Conclusions:

    • Reimplantation of cochlear implants can lead to significant changes in speech recognition ability.
    • Patients undergoing reimplantation require thorough counseling on potential variations in auditory performance and sound quality.