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Carotid arterial intraplaque hemorrhage and calcification influences cerebral hemodynamics.
MedLine Citation:
PMID:  23238946     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
We evaluated associations between cerebral blood flow (CBF) and histopathological features in atherosclerotic lesions of the internal carotid artery. Cerebrovascular reactivity (CVR) and CBF were measured in 72 patients with unilateral carotid artery stenosis who underwent Xe-CT before carotid endarterectomy. Collateral blood flow was estimated as stump pressure. Proportions of fibrous tissue, intraplaque hemorrhage (IPH), and calcification were pathologically compared with the entire plaque body. The Spearman's rank test and stepwise multiple linear regression analysis revealed that the IPH rate significantly and negatively correlated with CBF, whereas the calcification rate positively correlated with CVR. One-way analysis of variance showed that IPH and the absence of calcification might confer a risk for CBF and CVR reduction. Thus, not only the stenosis rate but also the degree of IPH and calcification in carotid arterial plaque are notable risk factors for ischemic stroke.
Authors:
Naomi Hashimoto; Seiji Hama; Kanji Yamane; Kaoru Kurisu
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-12-14
Journal Detail:
Title:  Neurosurgical review     Volume:  -     ISSN:  1437-2320     ISO Abbreviation:  Neurosurg Rev     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2012-12-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7908181     Medline TA:  Neurosurg Rev     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Neurosurgery, Chugoku Rousai Hospital, Tagaya 1-5-1, Hiro, Kure-shi, Hiroshima, 737-0193, Japan, hasshi32@chugokuh.rofuku.go.jp.
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