Stroke Research Today is a free monthly online journal that collates and summarizes the latest research about Stroke, including details on treatment, recovery, rehabilitation, signs, symptoms.

Embolic internal auditory artery infarction from vertebral artery dissection.

Choi KD, Chun JU, Han MG, Park SH, Kim JS

Department of Neurology, College of Medicine, Seoul National University Bundang Hospital, 300 Gumi-dong, Bundang-gu, Seongnam-si, Gyeonggi-do, 463-707, Korea.

A 51-year-old man developed sudden vertigo, right hearing loss and dysphagia. Examination revealed right Horner syndrome, spontaneous torsional-horizontal nystagmus, right central type facial palsy, dysarthria, reduced soft palate elevation without gag reflex, left hypesthesia, right dysmetria and imbalance. Audiometry and bithermal caloric tests documented right sensorineural hearing loss and canal paresis. Brain MRI and cerebral angiography documented right lateral medullary infarction from vertebral artery dissection, without involvement of other parts of the brainstem supplied by the anterior inferior cerebellar artery (AICA). This case suggests artery-to-artery embolism as a possible mechanism of isolated vertigo or hearing loss from labyrinthine infarction.

Published 6 June 2006 in J Neurol Sci, 246(1): 169-72.
Full-text of this article is available online (may require subscription).

© 2004-2008 Stroke Research Today. All Rights Reserved.