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Central vestibular system modulation in vestibular migraine.
Mark Obermann1, Sebastian Wurthmann2, Benedict Schulte Steinberg2
1Department of Neurology, University of Duisburg-Essen, Germany mark.obermann@uni-due.de.
Vestibular migraine is linked to reduced grey matter volume in brain regions involved in pain and vestibular processing. These changes may explain the connection between migraine and the vestibular system.
Area of Science:
- Neuroimaging
- Neurology
- Vestibular System
Background:
- Vestibular migraine affects 1% of the general population.
- 30-50% of migraine patients experience vertigo or dizziness.
- The link between migraine and the vestibular system requires further investigation.
Purpose of the Study:
- Identify brain regions with altered grey matter volume in vestibular migraine.
- Evaluate the neuroanatomical connection between migraine and the vestibular system.
Main Methods:
- Voxel-based morphometry using magnetic resonance imaging (MRI).
- Comparison of 17 patients with definite vestibular migraine and 17 healthy controls.
Main Results:
- Grey matter (GM) volume reduction observed in temporal, cingulate, prefrontal, insular, parietal, and occipital cortex.
- Negative correlation between disease duration and GM volume in pain and vestibular processing areas.
- Negative correlation between headache severity and prefrontal cortex volume.
Conclusions:
- Observed brain alterations in vestibular migraine are similar to those in migraine.
- Findings extend to areas involved in multisensory vestibular control and central vestibular compensation.
- These alterations may represent the pathoanatomic link between migraine and the vestibular system.
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