Related Experiment Video
Updated: Jun 12, 2026
06:54
Performing Repeated Intraoperative Impedance Telemetry Measurements during Cochlear Implantation
Published on: August 4, 2023
Influence of cochlear implantation on peripheral vestibular receptor function
Eike Krause1, Julia P R Louza, Juliane Wechtenbruch
1Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Ludwig-Maximilians-University, Munich, Germany. Eike.Krause@med.uni-muenchen.de
Summary
Cochlear implantation can impair inner ear vestibular function, affecting both the implanted and non-implanted sides. However, this vestibular damage did not correlate with vertigo symptoms in patients.
Area of Science:
- Otolaryngology
- Neuroscience
- Audiology
Background:
- Cochlear implantation aims to restore hearing but can impact adjacent vestibular structures.
- Understanding the effects on peripheral vestibular function is crucial for patient outcomes.
Purpose of the Study:
- To evaluate the influence of cochlear implantation on peripheral vestibular receptor function.
- To investigate the correlation between vestibular function changes and vertigo symptoms.
Main Methods:
- Prospective clinical study involving 32 patients undergoing cochlear implantation.
- Pre- and postoperative assessment of horizontal semicircular canal response and sacculus function using vestibular-evoked myogenic potentials.
- Postoperative evaluation of subjective vertigo symptoms.
Main Results:
- Cochlear implantation significantly increases the risk of horizontal semicircular canal and sacculus impairment in the implanted ear.
- Postoperative vestibular function decline was observed in several patients, but contralateral function remained unaffected.
- Impaired vestibular function did not correlate with the incidence or severity of vertigo symptoms.
Conclusions:
- Cochlear implantation is a significant risk factor for peripheral vestibular receptor damage.
- Preserving vestibular function, alongside residual hearing, should be a surgical goal.
- Minimally invasive surgical techniques may help mitigate vestibular damage.
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