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Morphological classification of mobile plaques and their association with early recurrence of stroke.
MedLine Citation:
PMID:  20948205     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
BACKGROUND: The present study investigated the frequency and morphological characteristics of carotid mobile plaques and examined the relationship between carotid mobile plaques and recurrent strokes.
METHODS: The study included 94 consecutive acute stroke patients with large-artery atherosclerosis associated with extracranial carotid stenosis. We investigated the presence of mobile plaques by carotid ultrasonography and classified patients into two groups (mobile group and non-mobile group). We compared backgrounds, MRI and ultrasonographic findings, neurological severity on admission and at discharge, and the rate of early recurrent stroke between both groups.
RESULTS: Mobile plaques were detected in 12 patients (12.8%). There were four types of mobile plaques: (1) the jellyfish-type plaque, in which the fibrous cap fluctuated like a jellyfish; (2) the streaming-band-type plaque, in which the string attached to the plaque was swaying; (3) the mobile-thrombus-type plaque, in which a mobile mass was attached to the plaque surface, and (4) the fluctuating-ulcer-type plaque, which contained a mobile substance in the plaque ulcer. Although National Institutes of Health Stroke Scale (NIHSS) scores on admission were less severe in the mobile group than in the non-mobile group (median 1 vs. 4, respectively; p = 0.004), the rate of early recurrent stroke was significantly higher in the mobile group than in the non-mobile group (33.3 vs. 7.3%, respectively; p = 0.022). There were no significant differences in NIHSS scores at discharge between groups.
CONCLUSIONS: Morphologically, several types of mobile plaques were detected in consecutive patients with acute stroke associated with carotid stenosis. Mobile plaques are strongly associated with an early recurrence of stroke.
Authors:
Toshiyasu Ogata; Masahiro Yasaka; Yoshiyuki Wakugawa; Takanari Kitazono; Yasushi Okada
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-10-15
Journal Detail:
Title:  Cerebrovascular diseases (Basel, Switzerland)     Volume:  30     ISSN:  1421-9786     ISO Abbreviation:  Cerebrovasc. Dis.     Publication Date:  2010  
Date Detail:
Created Date:  2010-11-24     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9100851     Medline TA:  Cerebrovasc Dis     Country:  Switzerland    
Other Details:
Languages:  eng     Pagination:  606-11     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 S. Karger AG, Basel.
Affiliation:
Department of Cerebrovascular Diseases, Cerebrovascular Center and Clinical Research Institute, National Hospital Organization, Kyushu Medical Center, Kyushu University, Fukuoka, Japan. toshi.ogata1@gmail.com
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