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Posturographic findings in two common peripheral vestibular disorders.
M E Norré1, G Forrez, A Beckers
1Department of Otoneurology and Equilibriometry, University Hospitals, University of Leuven, Belgium.
The Journal of Otolaryngology
|December 1, 1987
Summary
Posturography reveals vestibulospinal reflex disturbances in Ménière's disease and unilateral vestibular hypofunction, often missed by other tests. Central adaptation mechanisms appear crucial for recovery in these peripheral vestibular pathologies.
Area of Science:
- Neurology
- Otolaryngology
- Vestibular System Research
Background:
- Peripheral vestibular pathology significantly impacts the vestibulospinal reflex.
- Postural sway recording is a key method for evaluating vestibulospinal function.
- Ménière's disease and peripheral unilateral vestibular hypofunction are common syndromes studied.
Purpose of the Study:
- To assess vestibulospinal reflex disturbances in Ménière's disease and peripheral unilateral vestibular hypofunction using posturography.
- To compare the effectiveness of posturography against caloric and rotation tests in detecting these disturbances.
- To investigate the role of central adaptation mechanisms in normalizing the vestibulospinal reflex.
Main Methods:
- Utilized posturography to record and evaluate postural sway.
- Studied patients diagnosed with Ménière's disease and peripheral unilateral vestibular hypofunction.
- Compared posturographic findings with results from caloric and rotation tests.
Main Results:
- Posturography identified vestibulospinal disturbances in both studied peripheral vestibular syndromes.
- Caloric and rotation tests were less effective in predicting these vestibulospinal disturbances.
- Vestibulo-ocular compensation was better in Ménière's disease than in unilateral vestibular hypofunction, irrespective of disease phase.
- Ménière's patients with atypical vertigo showed frequent posturographic disturbances.
Conclusions:
- Posturography is a sensitive tool for detecting vestibulospinal disturbances in peripheral vestibular pathologies.
- Central adaptation mechanisms may be incomplete in some patients, affecting reflex normalization.
- Differential diagnostic insights can be gained by comparing posturography with other vestibular tests, particularly in Ménière's disease.