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High-Frequency Horizontal Semicircular Canal Function in Certain Menière's Disease.
Claudia Jerin1, Rebecca Maxwell, Robert Gürkov
1German Center for Vertigo and Balance Disorders and Department of Otorhinolaryngology - Head and Neck Surgery, Grosshadern Medical Center, University of Munich, Munich, Germany.
Ear and Hearing
|May 16, 2018
Summary
Video head impulse testing (vHIT) in Meniere's disease rarely shows low gain but frequently reveals refixation saccades, often bilaterally. These vHIT findings did not correlate with other audiovestibular tests or disease duration.
Area of Science:
- Otolaryngology
- Neuroscience
- Vestibular System
Background:
- Meniere's disease is a disorder of the inner ear.
- Video head impulse testing (vHIT) assesses the vestibulo-ocular reflex (VOR).
- Previous research on vHIT in Meniere's disease is limited.
Purpose of the Study:
- To characterize vHIT findings in patients with definitive Meniere's disease.
- To explore the relationship between vHIT results and other audiovestibular function tests.
Main Methods:
- Fifty-four patients with Meniere's disease underwent vHIT.
- Outcome measures included VOR gain and refixation saccades (frequency, latency, velocity).
- Correlations with caloric irrigation, VEMP, audiometry, age, and disease duration were analyzed.
Main Results:
- Most patients (7/54) had normal vHIT gain but exhibited refixation saccades, frequently bilateral.
- Seven patients showed pathologically decreased vHIT gain and refixation saccades.
- No significant correlation was found between vHIT parameters and other audiovestibular tests, age, or disease duration.
Conclusions:
- Low vHIT gain is uncommon in Meniere's disease; refixation saccades are frequent.
- Bilateral saccades are common in Meniere's disease patients undergoing vHIT.
- Unlike vestibular neuritis, Meniere's disease does not show compensatory saccade latency decrease over time.