Document Detail


Differences in stroke subtypes among natives and caucasians in Boston and Buenos Aires.
MedLine Citation:
PMID:  11022068     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND AND PURPOSE: Several issues regarding ethnic-cultural factors, sex-related variation, and risk factors for stroke have been described in the literature. However, there have been no prospective studies comparing ethnic differences and stroke subtypes between populations from South America and North America. It has been suggested that natives from Buenos Aires, Argentina, may have higher frequency of hemorrhagic strokes and penetrating artery disease than North American subjects. The aim of this study was to validate this hypothesis. METHODS: We studied the database of all consecutive acute stroke patients admitted to the Ramos Mejia Hospital (RMH) in Buenos Aires and to the Beth Israel Deaconess Medical Center (BIMC) in Boston, Massachusetts, from July 1997 to March 1999. Stroke subtypes were classified according to the Trial of Org 10172 in Acute Stroke Treatment (TOAST) criteria. All information on patients (demographic, clinical, and radiographic) was recorded prospective to the assessment of the stroke subtype. RESULTS: Three hundred sixty-one and 479 stroke patients were included at RMH and BIMC stroke data banks, respectively. Coronary artery disease was significantly more frequent in BIMC (P:<0.001), whereas tobacco and alcohol intake were significantly more frequent in RMH (P:<0.001). Intracerebral hemorrhage (P:<0.001) and penetrating artery disease (P:<0.001) were significantly more frequent in the RMH registry, whereas large-artery disease (P:<0.02) and cardioembolism (P:<0.001) were more common in the BIMC data bank. CONCLUSIONS: Penetrating artery disease and intracerebral hemorrhage were the most frequent stroke subtypes in natives from Buenos Aires. Lacunar strokes and intracerebral hemorrhage were more frequent among Caucasians from Buenos Aires than Caucasians from Boston. Poor risk factor control and dietary habits could explain these differences.
Authors:
G Saposnik; L R Caplan; L A Gonzalez; A Baird; J Dashe; A Luraschi; R Llinas; S Lepera; I Linfante; C Chaves; K Kanis; R E Sica; R C Rey
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Stroke; a journal of cerebral circulation     Volume:  31     ISSN:  1524-4628     ISO Abbreviation:  Stroke     Publication Date:  2000 Oct 
Date Detail:
Created Date:  2000-10-13     Completed Date:  2000-10-26     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  0235266     Medline TA:  Stroke     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  2385-9     Citation Subset:  IM    
Affiliation:
Department of Neurology, Ramos Mejia Hospital, Buenos Aires, Argentina.gsaposnik@intramed.net.ar
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MeSH Terms
Descriptor/Qualifier:
Adult
African Continental Ancestry Group
Aged
Argentina / epidemiology
Asian Continental Ancestry Group*
Brain Infarction / epidemiology
Cardiovascular Diseases / epidemiology
Cerebral Hemorrhage / ethnology*
Comorbidity
European Continental Ancestry Group*
Hispanic Americans
Humans
Hypertension / epidemiology
Indians, South American*
Massachusetts / epidemiology
Middle Aged
Risk Factors
Stroke / classification*,  ethnology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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