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Relation Between Aspirin Dose, All-Cause Mortality, and Bleeding in Patients With Recent Cerebrovascular or Coronary Ischemic Events (from the BRAVO Trial)

Identifieur interne : 008A85 ( Main/Exploration ); précédent : 008A84; suivant : 008A86

Relation Between Aspirin Dose, All-Cause Mortality, and Bleeding in Patients With Recent Cerebrovascular or Coronary Ischemic Events (from the BRAVO Trial)

Auteurs : Herbert D. Aronow [États-Unis] ; Robert M. Califf [États-Unis] ; Robert A. Harrington [États-Unis] ; Marc Vallee [États-Unis] ; Carmelo Graffagnino [États-Unis] ; Ashfaq Shuaib [Canada] ; Desmond J. Fitzgerald [Irlande (pays)] ; J. Donald Easton [États-Unis] ; Frans Van De Werf [Belgique] ; Hans-Christoph Diener [Allemagne] ; James Ferguson [États-Unis] ; Peter J. Koudstaal [Pays-Bas] ; Pierre Amarenco [France] ; Pierre Theroux [Canada] ; Stephen Davis [Australie] ; Eric J. Topol [États-Unis]

Source :

RBID : Pascal:09-0037296

Descripteurs français

English descriptors

Abstract

Despite aspirin's established role in the treatment of atherosclerotic vascular disease, considerable controversy exists regarding its most effective dosing strategy. In a retrospective observational study, we examined the relation between prescribed aspirin dose (<162 mg vs ≥162 mg/day aspirin) and clinical outcome in 4,589 placebo-treated patients enrolled in the Blockage of the Glycoprotein IIb/IIIa Receptor to Avoid Vascular Occlusion (BRAVO) trial over a median follow-up of 366 days. Standard Cox regression analysis was employed because propensity analysis was not feasible. Compared with lower aspirin doses, higher doses were associated with lower unadjusted all-cause mortality (2.9 vs 1.6%, respectively; log rank chi-square 8.6, p = 0.0034). Higher aspirin dose remained independently predictive of lower all-cause mortality in a multivariable Cox proportional hazards model (hazard ratio 0.64, 95% confidence interval 0.42 to 0.97, p = 0.037). However, there was no significant difference in the incidence of the composite endpoint death, nonfatal myocardial infarction, or nonfatal stroke (6.1% vs 6.2%, p = 0.74). Higher aspirin dose was a significant independent predictor of any (hazard ratio 1.32, 95% confidence interval 1.12 to 1.55, p = 0.001) but not serious bleeding. In conclusion, our findings suggest that aspirin doses of ≥ 162 mg/day may be more beneficial than those <162 mg/day at preventing death.


Affiliations:


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Le document en format XML

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<name sortKey="Shuaib, Ashfaq" sort="Shuaib, Ashfaq" uniqKey="Shuaib A" first="Ashfaq" last="Shuaib">Ashfaq Shuaib</name>
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<name sortKey="Easton, J Donald" sort="Easton, J Donald" uniqKey="Easton J" first="J. Donald" last="Easton">J. Donald Easton</name>
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<name sortKey="Van De Werf, Frans" sort="Van De Werf, Frans" uniqKey="Van De Werf F" first="Frans" last="Van De Werf">Frans Van De Werf</name>
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<name sortKey="Ferguson, James" sort="Ferguson, James" uniqKey="Ferguson J" first="James" last="Ferguson">James Ferguson</name>
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<name sortKey="Davis, Stephen" sort="Davis, Stephen" uniqKey="Davis S" first="Stephen" last="Davis">Stephen Davis</name>
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<name sortKey="Topol, Eric J" sort="Topol, Eric J" uniqKey="Topol E" first="Eric J." last="Topol">Eric J. Topol</name>
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<date when="2008">2008</date>
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<name sortKey="Graffagnino, Carmelo" sort="Graffagnino, Carmelo" uniqKey="Graffagnino C" first="Carmelo" last="Graffagnino">Carmelo Graffagnino</name>
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<name sortKey="Shuaib, Ashfaq" sort="Shuaib, Ashfaq" uniqKey="Shuaib A" first="Ashfaq" last="Shuaib">Ashfaq Shuaib</name>
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<country>Canada</country>
<wicri:noRegion>Edmonton</wicri:noRegion>
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<name sortKey="Fitzgerald, Desmond J" sort="Fitzgerald, Desmond J" uniqKey="Fitzgerald D" first="Desmond J." last="Fitzgerald">Desmond J. Fitzgerald</name>
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<name sortKey="Easton, J Donald" sort="Easton, J Donald" uniqKey="Easton J" first="J. Donald" last="Easton">J. Donald Easton</name>
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<region type="state">Rhode Island</region>
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<name sortKey="Van De Werf, Frans" sort="Van De Werf, Frans" uniqKey="Van De Werf F" first="Frans" last="Van De Werf">Frans Van De Werf</name>
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<country>Belgique</country>
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<name sortKey="Diener, Hans Christoph" sort="Diener, Hans Christoph" uniqKey="Diener H" first="Hans-Christoph" last="Diener">Hans-Christoph Diener</name>
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<name sortKey="Ferguson, James" sort="Ferguson, James" uniqKey="Ferguson J" first="James" last="Ferguson">James Ferguson</name>
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<name sortKey="Koudstaal, Peter J" sort="Koudstaal, Peter J" uniqKey="Koudstaal P" first="Peter J." last="Koudstaal">Peter J. Koudstaal</name>
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<s1>Department of Neurology, Erasmus Medical Center</s1>
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<country>Pays-Bas</country>
<placeName>
<settlement type="city">Rotterdam</settlement>
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<name sortKey="Amarenco, Pierre" sort="Amarenco, Pierre" uniqKey="Amarenco P" first="Pierre" last="Amarenco">Pierre Amarenco</name>
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</inist:fA14>
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<placeName>
<region type="region">Île-de-France</region>
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<settlement type="city">Paris</settlement>
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<name sortKey="Theroux, Pierre" sort="Theroux, Pierre" uniqKey="Theroux P" first="Pierre" last="Theroux">Pierre Theroux</name>
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<country>Canada</country>
<placeName>
<settlement type="city">Montréal</settlement>
<region type="state">Québec</region>
</placeName>
</affiliation>
</author>
<author>
<name sortKey="Davis, Stephen" sort="Davis, Stephen" uniqKey="Davis S" first="Stephen" last="Davis">Stephen Davis</name>
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<s1>Division of Neurology, Royal Melbourne Hospital, University of Melbourne</s1>
<s3>AUS</s3>
<sZ>15 aut.</sZ>
</inist:fA14>
<country>Australie</country>
<placeName>
<settlement type="city">Melbourne</settlement>
<region type="état">Victoria (État)</region>
</placeName>
<orgName type="university">Université de Melbourne</orgName>
</affiliation>
</author>
<author>
<name sortKey="Topol, Eric J" sort="Topol, Eric J" uniqKey="Topol E" first="Eric J." last="Topol">Eric J. Topol</name>
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<s1>Division of Cardiovascular Diseases, Scripps Clinic</s1>
<s2>La Jolla, California</s2>
<s3>USA</s3>
<sZ>16 aut.</sZ>
</inist:fA14>
<country>États-Unis</country>
<placeName>
<region type="state">Californie</region>
</placeName>
</affiliation>
</author>
</analytic>
<series>
<title level="j" type="main">The American journal of cardiology</title>
<title level="j" type="abbreviated">Am. j. cardiol.</title>
<idno type="ISSN">0002-9149</idno>
<imprint>
<date when="2008">2008</date>
</imprint>
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<title level="j" type="main">The American journal of cardiology</title>
<title level="j" type="abbreviated">Am. j. cardiol.</title>
<idno type="ISSN">0002-9149</idno>
</seriesStmt>
</fileDesc>
<profileDesc>
<textClass>
<keywords scheme="KwdEn" xml:lang="en">
<term>Acetylsalicylic acid</term>
<term>Cardiology</term>
<term>Cause</term>
<term>Circulatory system</term>
<term>Coronary artery</term>
<term>Coronary heart disease</term>
<term>Dose</term>
<term>Epidemiology</term>
<term>Hemorrhage</term>
<term>Human</term>
<term>Ischemia</term>
<term>Mortality</term>
<term>Posology</term>
<term>Prognosis</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr">
<term>Hémorragie</term>
<term>Cardiopathie coronaire</term>
<term>Ischémie</term>
<term>Acide acétylsalicylique</term>
<term>Dose</term>
<term>Posologie</term>
<term>Cause</term>
<term>Mortalité</term>
<term>Pronostic</term>
<term>Epidémiologie</term>
<term>Homme</term>
<term>Artère coronaire</term>
<term>Appareil circulatoire</term>
<term>Cardiologie</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr">
<term>Mortalité</term>
<term>Homme</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front>
<div type="abstract" xml:lang="en">Despite aspirin's established role in the treatment of atherosclerotic vascular disease, considerable controversy exists regarding its most effective dosing strategy. In a retrospective observational study, we examined the relation between prescribed aspirin dose (<162 mg vs ≥162 mg/day aspirin) and clinical outcome in 4,589 placebo-treated patients enrolled in the Blockage of the Glycoprotein IIb/IIIa Receptor to Avoid Vascular Occlusion (BRAVO) trial over a median follow-up of 366 days. Standard Cox regression analysis was employed because propensity analysis was not feasible. Compared with lower aspirin doses, higher doses were associated with lower unadjusted all-cause mortality (2.9 vs 1.6%, respectively; log rank chi-square 8.6, p = 0.0034). Higher aspirin dose remained independently predictive of lower all-cause mortality in a multivariable Cox proportional hazards model (hazard ratio 0.64, 95% confidence interval 0.42 to 0.97, p = 0.037). However, there was no significant difference in the incidence of the composite endpoint death, nonfatal myocardial infarction, or nonfatal stroke (6.1% vs 6.2%, p = 0.74). Higher aspirin dose was a significant independent predictor of any (hazard ratio 1.32, 95% confidence interval 1.12 to 1.55, p = 0.001) but not serious bleeding. In conclusion, our findings suggest that aspirin doses of ≥ 162 mg/day may be more beneficial than those <162 mg/day at preventing death.</div>
</front>
</TEI>
<affiliations>
<list>
<country>
<li>Allemagne</li>
<li>Australie</li>
<li>Belgique</li>
<li>Canada</li>
<li>France</li>
<li>Irlande (pays)</li>
<li>Pays-Bas</li>
<li>États-Unis</li>
</country>
<region>
<li>Californie</li>
<li>Caroline du Nord</li>
<li>Hollande-Méridionale</li>
<li>Michigan</li>
<li>Québec</li>
<li>Rhode Island</li>
<li>Texas</li>
<li>Victoria (État)</li>
<li>Île-de-France</li>
</region>
<settlement>
<li>Melbourne</li>
<li>Montréal</li>
<li>Paris</li>
<li>Rotterdam</li>
</settlement>
<orgName>
<li>Université de Melbourne</li>
</orgName>
</list>
<tree>
<country name="États-Unis">
<region name="Michigan">
<name sortKey="Aronow, Herbert D" sort="Aronow, Herbert D" uniqKey="Aronow H" first="Herbert D." last="Aronow">Herbert D. Aronow</name>
</region>
<name sortKey="Califf, Robert M" sort="Califf, Robert M" uniqKey="Califf R" first="Robert M." last="Califf">Robert M. Califf</name>
<name sortKey="Easton, J Donald" sort="Easton, J Donald" uniqKey="Easton J" first="J. Donald" last="Easton">J. Donald Easton</name>
<name sortKey="Ferguson, James" sort="Ferguson, James" uniqKey="Ferguson J" first="James" last="Ferguson">James Ferguson</name>
<name sortKey="Graffagnino, Carmelo" sort="Graffagnino, Carmelo" uniqKey="Graffagnino C" first="Carmelo" last="Graffagnino">Carmelo Graffagnino</name>
<name sortKey="Harrington, Robert A" sort="Harrington, Robert A" uniqKey="Harrington R" first="Robert A." last="Harrington">Robert A. Harrington</name>
<name sortKey="Topol, Eric J" sort="Topol, Eric J" uniqKey="Topol E" first="Eric J." last="Topol">Eric J. Topol</name>
<name sortKey="Vallee, Marc" sort="Vallee, Marc" uniqKey="Vallee M" first="Marc" last="Vallee">Marc Vallee</name>
</country>
<country name="Canada">
<noRegion>
<name sortKey="Shuaib, Ashfaq" sort="Shuaib, Ashfaq" uniqKey="Shuaib A" first="Ashfaq" last="Shuaib">Ashfaq Shuaib</name>
</noRegion>
<name sortKey="Theroux, Pierre" sort="Theroux, Pierre" uniqKey="Theroux P" first="Pierre" last="Theroux">Pierre Theroux</name>
</country>
<country name="Irlande (pays)">
<noRegion>
<name sortKey="Fitzgerald, Desmond J" sort="Fitzgerald, Desmond J" uniqKey="Fitzgerald D" first="Desmond J." last="Fitzgerald">Desmond J. Fitzgerald</name>
</noRegion>
</country>
<country name="Belgique">
<noRegion>
<name sortKey="Van De Werf, Frans" sort="Van De Werf, Frans" uniqKey="Van De Werf F" first="Frans" last="Van De Werf">Frans Van De Werf</name>
</noRegion>
</country>
<country name="Allemagne">
<noRegion>
<name sortKey="Diener, Hans Christoph" sort="Diener, Hans Christoph" uniqKey="Diener H" first="Hans-Christoph" last="Diener">Hans-Christoph Diener</name>
</noRegion>
</country>
<country name="Pays-Bas">
<region name="Hollande-Méridionale">
<name sortKey="Koudstaal, Peter J" sort="Koudstaal, Peter J" uniqKey="Koudstaal P" first="Peter J." last="Koudstaal">Peter J. Koudstaal</name>
</region>
</country>
<country name="France">
<region name="Île-de-France">
<name sortKey="Amarenco, Pierre" sort="Amarenco, Pierre" uniqKey="Amarenco P" first="Pierre" last="Amarenco">Pierre Amarenco</name>
</region>
</country>
<country name="Australie">
<region name="Victoria (État)">
<name sortKey="Davis, Stephen" sort="Davis, Stephen" uniqKey="Davis S" first="Stephen" last="Davis">Stephen Davis</name>
</region>
</country>
</tree>
</affiliations>
</record>

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