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Related Experiment Videos

Cochlear reimplantation: surgical techniques and functional results.

G Alexiades1, J T Roland, A J Fishman

  • 1Department of Otolaryngology, New York University School of Medicine, New York, NY, USA.

The Laryngoscope
|September 25, 2001
PubMed
Summary
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Cochlear reimplantation is safe and effective, even after device failure or for upgrades. Postoperative hearing performance remains stable or improves, preserving cochlear function for future reimplantation.

Area of Science:

  • Otolaryngology
  • Biomedical Engineering
  • Neurosurgery

Background:

  • Cochlear reimplantation is most often necessitated by device failure, though upgrades, infection, or flap breakdown are also indications.
  • While device failure rates have declined, reimplantation remains occasionally necessary due to malfunction.
  • Diverse internal cochlear implant designs require specific evaluation of reimplantation effects.

Purpose of the Study:

  • To investigate reimplantation outcomes across various cochlear implant designs.
  • To determine if surgical techniques, anatomical findings, or postoperative performance differ among implant types.
  • To assess the safety and efficacy of reimplantation in maintaining cochlear function.

Main Methods:

  • Retrospective chart review of 33 patients who underwent cochlear reimplantation.

Related Experiment Videos

  • Analysis of patients implanted between February 1984 and December 2000 at New York University Medical Center.
  • Inclusion of patients with prior single-channel (3M/House, 3M/Vienna) or multichannel (Clarion, Ineraid, Nucleus) devices.

    • Main Results:

    • Reimplantation occurred after device use ranging from 1 month to 13 years, due to various failures or complications.
    • Postoperative hearing performance was equivalent to or superior to pre-failure levels.
    • Explanted devices did not cause cochlear damage, allowing for reimplantation with the same or upgraded devices.

    Conclusions:

    • Cochlear reimplantation is a safe procedure with no detrimental effect on patient performance.
    • The number of implanted electrodes was maintained or increased in all reimplantation cases.
    • Reimplantation effectively preserves cochlear integrity for future auditory device use.