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Published on: June 21, 2024
Investigation of Balance Function Using Dynamic Posturography under Electrical-Acoustic Stimulation in Cochlear
B Schwab1, M Durisin, G Kontorinis
1Department of Otolaryngology, Medical University of Hannover, 30625 Hannover, Germany.
International Journal of Otolaryngology
|July 31, 2010
Summary
Cochlear implants (CI) can affect the vestibular system, influencing balance. While an activated CI may stabilize balance in some static conditions, it can also cause significant destabilization and poorer scores, potentially explaining dizziness in patients.
Area of Science:
- Neuroscience
- Audiology
- Vestibular System Research
Background:
- Cochlear implants (CI) are vital for hearing restoration.
- The impact of CI electrical stimulation on the vestibular system remains incompletely understood.
- Assessing vestibular function is crucial for managing CI patient well-being.
Purpose of the Study:
- To investigate the effect of electrical-acoustic stimulation from cochlear implants on vestibular function.
- To determine if cochlear implant use influences the balance system.
- To analyze changes in vestibular function using dynamic posturography.
Main Methods:
- Recruited 50 cochlear implant recipients for the study.
- Utilized the EquiTest system for dynamic posturography.
- Compared vestibular function with the cochlear implant switched off versus switched on.
Main Results:
- An activated cochlear implant significantly affects vestibular system function.
- Improvements in equilibrium scores were noted under specific static conditions (conditions 4 and 5).
- A significant destabilization in balance was also observed, particularly under static posturography conditions.
Conclusions:
- Cochlear implant activation impacts vestibular function, showing both stabilizing and destabilizing effects.
- Poorer vestibular scores are achieved under static conditions when the CI is active.
- Dizziness symptoms may arise from central suppression of induced balance disturbances when the CI increases demands on the system.
