Journal
NEUROLOGY
Volume 79, Issue 15, Pages 1607-1614Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1212/WNL.0b013e31826e264f
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- Charite Rahel Hirsch grant
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Objective: The aim of the study was to assess the evolution of clinical symptoms and vestibulo-cochlear function in patients with definite vestibular migraine (dVM). Methods: We reassessed 61 patients (54 women, 7 men, aged 24-76 years) with dVM according to validated diagnostic criteria after a median follow-up time of 9 years (range, 5.5-11). Assessment comprised a clinical interview and neurotologic examination, including pure-tone audiometry and caloric testing. Results: The majority of patients (87%) had recurrent vertigo at follow-up. Frequency of vertigo was reduced in 56%, increased in 29%, and unchanged in 16%. Impact of vertigo was severe in 21%, moderate in 43%, and mild in 36%. Eighteen percent reported mild persistent unsteadiness. Interictal ocular motor abnormalities had increased from 16% initially to 41% of patients at follow-up. The most frequent finding was positional nystagmus (PN), in 28%, including definite central-type PN in 18%. However, only 1 of 9 patients with ocular motor abnormalities at initial presentation showed similar findings on follow-up. Concomitant cochlear symptoms with vertigo had increased from 15% initially to 49%. Eleven patients (18%) had developed mild bilateral sensorineural hearing loss, which also involved the low-frequency range. Conclusions: The majority of patients continue to have recurrent vertigo in the long-term evolution of VM, and the impact of vertigo may remain severe. Whereas interictal ocular motor abnormalities may show some variation over time, vestibulo-cochlear dysfunction progresses slowly in some patients with VM. Interictal central-type PN may help distinguish VM from peripheral vestibular disorders such as Meniere disease. Neurology (R) 2012; 9:1607-1614
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