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Performing Repeated Intraoperative Impedance Telemetry Measurements during Cochlear Implantation
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Published on: August 4, 2023

[Cochlear implant device failure after cardioversion].

C Schild1, R Beck, C C Boedeker

  • 1Hals-Nasen-Ohren-Klinik, Universität Freiburg, Killianstrasse 5, 79106, Freiburg, Deutschland. christian.schild@uniklinik-freiburg.de

HNO
|April 21, 2011
PubMed
Summary
This summary is machine-generated.

Cardiac defibrillation can damage cochlear implants (CI), causing hearing issues. If cardioversion is necessary, remove the sound processor; reimplantation may be needed for device problems.

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Published on: February 28, 2012

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Last Updated: Jun 2, 2026

Performing Repeated Intraoperative Impedance Telemetry Measurements during Cochlear Implantation
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Published on: February 28, 2012

Area of Science:

  • Otolaryngology
  • Neurosurgery
  • Cardiology

Background:

  • Cochlear implantation (CI) is a standard treatment for severe to profound hearing loss.
  • Patients with underlying conditions may still receive cochlear implants.

Observation:

  • A patient with a cochlear implant (CI) experienced reduced sound quality, increased tinnitus, and headaches after cardiac defibrillation.
  • An integrity test revealed electrode anomalies post-cardioversion, though a direct link was unconfirmed.

Findings:

  • Electrical monopolar treatments like cardioversion pose a risk of cochlear implant damage.
  • Explantation and reimplantation of the CI were performed, with successful speech comprehension noted during rehabilitation.

Implications:

  • Cardiac defibrillation should be avoided in cochlear implant patients when feasible.
  • If cardioversion is unavoidable, removing the sound processor during the procedure is recommended.
  • Reimplantation is the preferred treatment for cochlear implant device-related issues.