| Vestibular dysfunction in migraine: effects of associated vertigo and motion sickness. | |
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MedLine Citation:
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PMID: 20041331 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The mechanisms of vestibular migraine and motion sickness remain unknown. The aims of this study were to determine interictal vestibular dysfunction in migraineurs according to associated dizziness/vertigo and motion sickness, and to find out whether impaired uvulonodular inhibition over the vestibular system underlies the vestibular symptoms and signs by measuring tilt suppression of the vestibulo-ocular reflex (VOR). One hundred and thirty-one patients with migraine [65 with vestibular migraine (MV), 41 with migrainous dizziness (MD), and 25 with migraine only (MO)] and 50 normal controls underwent evaluation of vestibular function. Motion sickness was assessed using the motion sickness susceptibility questionnaire (MSSQ) and subjective scale. Compared with normal controls and MO group, patients with MV/MD showed increased VOR time constant (TC) and greater suppression of the post-rotatory nystagmus with forward head tilt. The mean MSSQ score and subjective scale were highest in MV group, followed by MD, MO, and controls (p = 0.002, p < 0.001). Multiple linear regression model analyses revealed that motion sickness is an independent factor of TC prolongation (p = 0.024). Twenty-eight (21.4%) patients with migraine also showed perverted head shaking nystagmus and 12 (9.2%) had positional nystagmus. In view of the increased tilt suppression of the VOR, we speculate that dysfunction of the nodulus/uvula may not account for the prolonged TCs in MD/MV. Instead, innate hypersensitivity of the vestibular system may be an underlying mechanism of motion sickness and increased TC in MD/MV. The increased tilt suppression may be an adaptive cerebellar mechanism to suppress the hyperactive vestibular system in migraineurs. |
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Authors:
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Seong-Hae Jeong; Sun-Young Oh; Hyo-Jung Kim; Ja-Won Koo; Ji Soo Kim |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2009-12-30 |
Journal Detail:
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Title: Journal of neurology Volume: 257 ISSN: 1432-1459 ISO Abbreviation: J. Neurol. Publication Date: 2010 Jun |
Date Detail:
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Created Date: 2010-05-31 Completed Date: 2010-09-29 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0423161 Medline TA: J Neurol Country: Germany |
Other Details:
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Languages: eng Pagination: 905-12 Citation Subset: IM |
Affiliation:
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Department of Neurology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, 300 Gumi-dong, Bundang-gu, Seongnam-si, Gyeonggi-do 463-707, South Korea. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Caloric Tests Case-Control Studies Eye Movement Measurements Female Head Movements Humans Linear Models Male Migraine Disorders / complications*, physiopathology Motion Sickness / complications*, physiopathology Nystagmus, Physiologic Questionnaires Rotation Severity of Illness Index Time Factors Vertigo / complications*, physiopathology Vestibular Diseases / complications, physiopathology Vestibular Function Tests |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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