| Antiplatelet therapy for preventing stroke in patients with nonrheumatic atrial fibrillation and a history of stroke or transient ischemic attacks. | |
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MedLine Citation:
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PMID: 10796314 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: People with nonrheumatic atrial fibrillation who have had a transient ischemic attack or minor ischemic stroke are at risk of recurrent stroke. OBJECTIVES: The objective of this review was to assess the effect of antiplatelet therapy for secondary prevention in people with nonrheumatic atrial fibrillation and a previous transient ischaemic attack or ischaemic stroke. SEARCH STRATEGY: The reviewer searched the Cochrane Stroke Group trials register and contacted trialists. SELECTION CRITERIA: Randomised trials comparing an antiplatelet agent with placebo or open control in people with nonrheumatic atrial fibrillation and a previous transient ischaemic attack or minor ischaemic stroke. DATA COLLECTION AND ANALYSIS: One reviewer extracted the data. MAIN RESULTS: One trial was included, in which 300 milligrams of aspirin per day was compared with placebo. This review includes 404 aspirin-treated patients and 378 placebo patients in total. The mean follow-up was 2.3 years. No difference was shown between aspirin and placebo in the annual rate of all vascular events, including vascular death, recurrent stroke (ischaemic or haemorrhagic), myocardial infarction, and systemic embolism. The odds ratio was 0.84, 95% confidence interval 0.63 to 1. 14, or 15% of those receiving aspirin versus 19% for those given placebo. Aspirin may prevent 40 vascular events (of all types) per 1000 patients treated for one year. There was a non-significant reduction in the risk of recurrent stroke from 12% to 10% per year (odds ratio 0.89, 95% confidence interval 0.64 to 1.24). The incidence of major bleeding events, requiring hospitalisation, blood transfusion or surgical treatment, was low (0.9% per year for aspirin versus 0.7% for placebo). REVIEWER'S CONCLUSIONS: Aspirin may reduce the risk of vascular events in people with nonrheumatic atrial fibrillation, but the effect shown in the single trial was not statistically significant. |
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Authors:
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P J Koudstaal |
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Publication Detail:
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Type: Journal Article; Review |
Journal Detail:
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Title: Cochrane database of systematic reviews (Online) Volume: - ISSN: 1469-493X ISO Abbreviation: Cochrane Database Syst Rev Publication Date: 2000 |
Date Detail:
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Created Date: 2000-07-06 Completed Date: 2000-07-06 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 100909747 Medline TA: Cochrane Database Syst Rev Country: ENGLAND |
Other Details:
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Languages: eng Pagination: CD000186 Citation Subset: IM |
Affiliation:
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Department of Neurology, University Hospital Rotterdam, 40 Dr Molewaterplein, Rotterdam, Netherlands, 3015 GD. koudstaal@neur.azr.nl |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Atrial Fibrillation
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complications*,
drug therapy Humans Ischemic Attack, Transient / etiology*, prevention & control* Platelet Aggregation Inhibitors / therapeutic use* Stroke / etiology*, prevention & control* |
| Chemical | |
Reg. No./Substance:
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0/Platelet Aggregation Inhibitors |
| Comments/Corrections | |
Update In:
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Cochrane Database Syst Rev. 1996;(1):CD000186
[PMID:
17636615
]
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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