Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Estimating Performance Using Tonotopic Measurements of Intracochlear Electrocochleography: Comparison of Lateral Wall and Perimodiolar Arrays.

Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery·2026
Same author

Associations and trends in recency of hearing tests in the United States.

American journal of otolaryngology·2026
Same author

Social Determinants of Health and Impact on Cochlear Implant Performance.

Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·2026
Same author

Analyzing Postoperative Vestibulopathy in Vestibular Schwannoma Patients Through Physical Therapy-Based Assessments.

Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·2026
Same author

Simultaneous multielectrode recordings along the human scala tympani: Evidence for level-dependent place coding.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same author

Multilayer reconstruction technique for temporal bone dehiscence: a single-center experience with cadaveric illustrations.

Journal of neurosurgery·2026

Related Experiment Video

Updated: Apr 4, 2026

Performing Intracochlear Electrocochleography During Cochlear Implantation
09:10

Performing Intracochlear Electrocochleography During Cochlear Implantation

Published on: March 8, 2022

5.2K

Round window electrocochleography before and after cochlear implant electrode insertion.

Oliver F Adunka1,2, Christopher K Giardina2, Eric J Formeister2

  • 1Department of Otolaryngology-Head & Neck Surgery, the Ohio State University, Columbus, Ohio, U.S.A.

The Laryngoscope
|September 12, 2015
PubMed
Summary
This summary is machine-generated.

Intraoperative electrocochleography (ECoG) detects changes during cochlear implantation but does not reliably predict hearing preservation. Further research is needed to improve outcomes for cochlear implant recipients.

Keywords:
Electrocochleographycochlear implantscochlear physiologyhearing preservationintraoperative monitoring

More Related Videos

Author Spotlight: Optimizing EAS with Long Electrodes for Enhanced Cochlear Coverage and Hearing Preservation
03:49

Author Spotlight: Optimizing EAS with Long Electrodes for Enhanced Cochlear Coverage and Hearing Preservation

Published on: October 11, 2024

1.3K
Author Spotlight: Advancements in Impedance Monitoring for Cochlear Implant Surgery
06:54

Author Spotlight: Advancements in Impedance Monitoring for Cochlear Implant Surgery

Published on: August 4, 2023

2.0K

Related Experiment Videos

Last Updated: Apr 4, 2026

Performing Intracochlear Electrocochleography During Cochlear Implantation
09:10

Performing Intracochlear Electrocochleography During Cochlear Implantation

Published on: March 8, 2022

5.2K
Author Spotlight: Optimizing EAS with Long Electrodes for Enhanced Cochlear Coverage and Hearing Preservation
03:49

Author Spotlight: Optimizing EAS with Long Electrodes for Enhanced Cochlear Coverage and Hearing Preservation

Published on: October 11, 2024

1.3K
Author Spotlight: Advancements in Impedance Monitoring for Cochlear Implant Surgery
06:54

Author Spotlight: Advancements in Impedance Monitoring for Cochlear Implant Surgery

Published on: August 4, 2023

2.0K

Area of Science:

  • Otolaryngology
  • Neuroscience
  • Biomedical Engineering

Background:

  • Cochlear implantation aims to restore hearing but can cause trauma.
  • Electrococleography (ECoG) measures cochlear electrical activity.
  • Assessing intraoperative ECoG may predict hearing preservation post-implantation.

Purpose of the Study:

  • To evaluate the hypothesis that intraoperative round window ECoG before and after electrode insertion can predict postoperative hearing preservation in cochlear implant recipients.
  • To assess the correlation between ECoG changes and audiometric thresholds.

Main Methods:

  • A prospective cohort study involving 31 cochlear implant recipients (14 children, 17 adults).
  • Intraoperative round window ECoG was recorded immediately before and after electrode insertion.
  • Hearing preservation was assessed by postoperative changes in behavioral audiometric thresholds.

Main Results:

  • On average, post-insertion ECoG responses were 4 dB smaller than pre-insertion responses.
  • In 12 of 31 cases, ECoG response increased post-insertion.
  • Subsequent hearing loss averaged 22 dB, with no correlation found between ECoG change and audiometric threshold change.

Conclusions:

  • Intraoperative ECoG is sensitive to electrophysiologic changes during cochlear implantation.
  • ECoG demonstrated limited prognostic value for hearing preservation in this study population.
  • Hearing preservation was not the primary goal in the conventional cochlear implant procedures studied.