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Related Experiment Video

Updated: May 10, 2026

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

Monopolar cautery and adverse effects on cochlear implants.

Anita Jeyakumar1, Meghan Wilson, Jonathan E Sorrel

  • 1Department of Otorhinolaryngology, Louisiana State University, New Orleans, USA. ajeyak@lsuhsc.edu

JAMA Otolaryngology-- Head & Neck Surgery
|June 22, 2013
PubMed
Summary

Monopolar cautery did not damage cochlear implants or raise endocochlear temperature in a cadaveric study. This suggests monopolar cautery may be safe for patients with cochlear implants.

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Area of Science:

  • Otolaryngology
  • Biomedical Engineering
  • Neurosurgery

Background:

  • Monopolar cautery is often contraindicated for cochlear implant patients due to presumed device risk.
  • Limited data exists to support this contraindication for cochlear implant use.

Purpose of the Study:

  • To assess the impact of monopolar cautery on cochlear implant device integrity.
  • To determine if monopolar cautery affects endocochlear temperature in implanted cochleae.

Main Methods:

  • Monopolar cautery was applied to cochlear implants in cadavers at varying settings (10W, 50W) for 30 minutes.
  • Impedance, integrity, and endocochlear temperature were monitored.
  • Post-explantation device failure analysis was conducted.

Related Experiment Videos

Last Updated: May 10, 2026

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

Main Results:

  • No changes in impedance or integrity were observed during or after cautery.
  • Endocochlear temperature remained stable, even at 50W settings.
  • Post-study device analysis revealed no evidence of damage.

Conclusions:

  • Monopolar cautery, at tested settings and durations, did not cause detectable damage to cochlear implants.
  • No significant endocochlear temperature changes were recorded.
  • Findings challenge the routine contraindication of monopolar cautery in cochlear implant patients.