Vestibulo-Cochlear Function After Cochlear Implantation in Patients With Meniere's Disease

Area of Science:

• Otolaryngology
• Neuroscience
• Audiology

Background:

• Meniere's disease (MD) is a disorder affecting the inner ear, often leading to hearing loss and vertigo.
• Cochlear implantation is a treatment option for severe to profound hearing loss.
• Assessing auditory and vestibular function post-implantation in MD patients is crucial.

Purpose of the Study:

• To evaluate auditory and vestibular outcomes after cochlear implantation in patients with Meniere's disease.
• To compare these outcomes with a control group of patients with far-advanced otosclerosis.

Main Methods:

• Prospective study involving 23 Meniere's disease patients and 29 control patients.
• Auditory assessment included pure tone audiometry and word recognition scores.
• Vestibular assessment utilized video head impulse tests and vestibular myogenic potentials.

Main Results:

• Meniere's patients showed improved word recognition scores (80%) post-implantation, comparable to controls (72%).
• No significant changes in semicircular canal gain were observed.
• Ocular and cervical myogenic potentials showed some asymmetry (9.65% and 18.39%, respectively).

Conclusions:

• Cochlear implantation effectively improves auditory function in Meniere's disease patients.
• The surgery does not appear to cause major dysfunction in otolithic or semicircular canal function.