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Risk factors, radiological features, and infarct topography of craniocervical arterial dissection.
MedLine Citation:
PMID:  23013305     Owner:  NLM     Status:  Publisher    
BACKGROUND: Craniocervical arterial dissection is a common cause of ischemic stroke in the young to middle-aged population. There have been a number of previous studies where radiological features have been described but few with detailed mapping of infarct topography and none where these features have been related to the reported risk factors. AIMS: The aims of this study were to describe the radiological characteristics of dissection patients ≤55 years and relate these to reported risk factors. METHODS: Craniocervical arterial dissection cases ≤55 years, and age- and gender-matched controls were identified from a medical records database between 1998 and 2009. Control cases had stroke from another cause than dissection. Records and radiology were reviewed. RESULTS: Thirty-six radiologically confirmed dissection cases [20 (56%) vertebral artery, 16 (44%) internal carotid], and 43 controls were identified. Dissections were extracranial with intracranial extension in 10 (28%) cases. Infarction was demonstrated in 22 (61%) dissection cases. The most common wall deficit identified was an intimal flap. Twenty-three (64%) dissection cases had a recent history of neck trauma (P > 0·000) and 13 (36%) had vascular variants (P = 0·013). CONCLUSION: Craniocervical arterial dissection cases, particularly vertebral artery, were more likely to have a history of neck trauma. Dissections were most commonly extracranial, in the upper cervical region, with intracranial extension in 28%. Dissection cases with trauma more commonly had a dissection flap and evidence of infarction in the lateral medulla, anterior or posterior inferior cerebellar artery territory. Close inspection of the V3 segment of the vertebral or skull base for internal carotid artery may be warranted with a history of neck trauma.
Lucy Caroline Thomas; Darren A Rivett; Mark Parsons; Christopher Levi
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-9-27
Journal Detail:
Title:  International journal of stroke : official journal of the International Stroke Society     Volume:  -     ISSN:  1747-4949     ISO Abbreviation:  Int J Stroke     Publication Date:  2012 Sep 
Date Detail:
Created Date:  2012-9-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101274068     Medline TA:  Int J Stroke     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2012 The Authors. International Journal of Stroke © 2012 World Stroke Organization.
Faculty of Health, School of Health Sciences, The University of Newcastle, Newcastle, New South Wales, Australia.
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