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Relationship between basilar-type migraine and migrainous vertigo.
Chi-Te Wang1, Mei-Su Lai, Yi-Ho Young
1Department of Otolaryngology, Far Eastern Memorial Hospital, Taipei, Taiwan.
Headache
|January 31, 2009
Summary
Basilar-type migraine (BtM) and definite migrainous vertigo (dMV) share clinical similarities, differing from probable migrainous vertigo (pMV). BtM represents the most severe form of migraine-related vertigo.
Area of Science:
- Neurology
- Otolaryngology
- Vestibular Disorders
Background:
- Migraine-related vertigo is classified using various criteria, including basilar-type migraine (BtM), definite migrainous vertigo (dMV), and probable migrainous vertigo (pMV).
- Previous studies have not directly compared these diagnostic groups to understand their interrelationships.
Purpose of the Study:
- To compare clinical manifestations and audiovestibular function test results among patients diagnosed with BtM, dMV, and pMV.
- To elucidate the relationship and spectrum of severity within migraine-related vertigo disorders.
Main Methods:
- Seventy-seven patients were enrolled: 15 with BtM, 30 with dMV, and 32 with pMV.
- Participants underwent structured interviews for clinical presentations and a comprehensive battery of audiovestibular function tests.
Main Results:
- Demographic features were comparable across all three groups.
- BtM and dMV groups exhibited similar clinical features (e.g., motion sickness, migrainous symptoms, headache-vertigo sequence), distinct from the pMV group.
- BtM patients showed higher frequencies of vertigo attacks, neurological symptoms, and saccadic dysmetria compared to dMV patients.
Conclusions:
- Migraine-related vertigo disorders (BtM, dMV, pMV) represent a spectrum of severity.
- Basilar-type migraine (BtM) presents the most severe clinical manifestations and brainstem involvement.
- Definite migrainous vertigo (dMV) is less severe than BtM, while probable migrainous vertigo (pMV) is the mildest form.
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