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Related Experiment Video

Updated: Jun 6, 2026

Cochlear Implant Surgery and Electrically-evoked Auditory Brainstem Response Recordings in C57BL/6 Mice
09:06

Cochlear Implant Surgery and Electrically-evoked Auditory Brainstem Response Recordings in C57BL/6 Mice

Published on: January 9, 2019

Cochlear Implants and Electrocautery: A Live Animal Model.

Anita Jeyakumar1,2, Quan Lu1, Romaine Johnson3

  • 1College of Medicine, Northeast Ohio Medical University, Rootstown, Ohio, USA.

The Laryngoscope
|June 4, 2026
PubMed
Summary
This summary is machine-generated.

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High-powered electrocautery did not damage cochlear implant (CI) devices in a pig model, showing 100% device integrity. This study challenges current contraindications for CI recipients undergoing electrocautery, suggesting a need for evidence-based guideline revision.

Area of Science:

  • Otolaryngology
  • Biomedical Engineering
  • Surgical Technology

Background:

  • Monopolar electrocautery is often contraindicated in cochlear implant (CI) recipients.
  • Existing data on the safety of electrocautery in CI patients is conflicting.
  • There is a need to evaluate the impact of electrocautery on CI device integrity and temperature changes.

Purpose of the Study:

  • To assess the effects of high-powered monopolar electrocautery on cochlear implant devices.
  • To measure temperature variations induced by electrocautery near implanted CIs.
  • To challenge current contraindications for electrocautery use in CI recipients.

Main Methods:

  • Twelve manufacturer-donated CIs were implanted in two pigs.
  • Electrocautery (50W coagulation for 20 min) was applied at varying distances from the CIs.
Keywords:
animal modelcauterycochlear implantdevice failureelectrocautery

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Last Updated: Jun 6, 2026

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Published on: January 9, 2019

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  • Temperature changes were monitored, and devices underwent pre- and post-cautery integrity analysis.

    • Main Results:

    • Mean temperatures ranged from 32.9°C to 38.8°C.
    • Maximum temperature increases averaged 4.1°C at the scalp and 2.9°C at the round window.
    • All tested cochlear implant devices maintained 100% integrity post-electrocautery, regardless of proximity.

    Conclusions:

    • Controlled experimental evidence demonstrates no adverse effects of high-powered electrocautery on CI devices.
    • The findings challenge existing manufacturer contraindications for electrocautery in CI recipients.
    • Results support revising clinical guidelines to incorporate evidence-based practices for electrocautery use.