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Updated: Jul 30, 2026

Performing Intracochlear Electrocochleography During Cochlear Implantation
Published on: March 8, 2022
Cochlear potentials in clinical audiology
1Hearing and Speech Department, University of Kansas Medical Center, Kansas City 66160-7605, USA. jferraro@kumc.edu
Electrocochleography (ECochG) records cochlear and auditory nerve potentials for clinical use. This review covers ECochG methods and applications, particularly for Ménière
Area of Science:
- Audiology
- Neurophysiology
- Otolaryngology
Background:
- Electrocochleography (ECochG) measures cochlear and auditory nerve potentials in humans.
- ECochG is a valuable tool with diverse clinical applications.
- Current research on ECochG's clinical utility requires consolidation.
Purpose of the Study:
- To review current research on cochlear potentials and ECochG in clinical settings.
- To identify areas needing further investigation in ECochG.
- To present suggestions for enhancing ECochG's diagnostic value.
Main Methods:
- Review of ECochG recording methodologies (transtympanic vs. extratympanic).
- Analysis of stimulus choices (clicks vs. tonebursts).
- Consolidation of current research findings on ECochG applications.
Main Results:
- ECochG is primarily used for identifying and treating Ménière's disease/endolymphatic hydrops (MD/ELH).
- Other applications include intraoperative monitoring, enhancing auditory brainstem response (ABR) wave I, and estimating hearing sensitivity.
- Methodological considerations impact ECochG's effectiveness.
Conclusions:
- ECochG is a significant tool in audiology and neurotology.
- Further research is needed to optimize ECochG techniques and applications.
- Specific suggestions are provided to improve ECochG's diagnostic accuracy for MD/ELH.
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