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Guideline Prevention. European Stroke Initiative. 2004
Leys D, Kwiecinski H, Bogousslavsky J, Bath P, Brainin M, Diener HC, Kaste M, Sivenius J, Hennerici MG, Hacke W, Anonymous00185, Anonymous00186. · No affiliation provided · Cerebrovasc Dis. · Pubmed #14707404 No free full text.
This publication has no abstract.
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Article Results of the Stroke Prevention by Aggressive Reduction in Cholesterol Levels (SPARCL) trial by stroke subtypes. 2009
Amarenco P, Benavente O, Goldstein LB, Callahan A, Sillesen H, Hennerici MG, Gilbert S, Rudolph AE, Simunovic L, Zivin JA, Welch KM, Anonymous00057. · INSERM U-698 and Denis Diderot University, Paris, France. · Stroke. · Pubmed #19228842 No free full text.
Abstract: BACKGROUND AND PURPOSE: The SPARCL trial showed that atorvastatin 80 mg/d reduces the risk of stroke and other cardiovascular events in patients with recent stroke or transient ischemic attack (TIA). We tested the hypothesis that the benefit of treatment varies according to index event stroke subtype. METHODS: Subjects with stroke or TIA without known coronary heart disease were randomized to atorvastatin 80 mg/d or placebo. The SPARCL primary end point was fatal or nonfatal stroke. Secondary end points included major cardiovascular events (MCVE; stroke plus major coronary events). Cox regression models testing for an interaction with treatment assignment were used to explore potential differences in efficacy based on stroke subtype. RESULTS: For subjects randomized to atorvastatin versus placebo, a primary end point occurred in 13.1% versus 18.6% of those classified as having large vessel disease (LVD, 15.8% of 4,731 participants), in 13.1% versus 15.5% of those with small vessel disease (SVD, 29.8%), in 11.2% versus 12.7% of those with ischemic stroke of unknown cause (21.5%), in 7.6% versus 8.8% of those with TIA (30.9%), and in 22.2% versus 8.3% of those with hemorrhagic stroke (HS, 2%) at baseline. There was no difference in the efficacy of treatment for either the primary end point (LVD hazard ratio [HR] 0.70, 95% confidence interval [CI] 0.49 to 1.02, TIA HR 0.81, CI 0.57 to 1.17, SVD HR 0.85, CI 0.64 to 1.12, unknown cause HR 0.87, CI 0.61 to 1.24, HS HR 3.24, CI 1.01 to 10.4; P for heterogeneity=0.421), or MCVEs (P for heterogeneity=0.360) based on subtype of the index event. As compared to subjects with LVD strokes, those with SVD had similar MCVE rates (19.2% versus 18.5% over the course of the trial), and similar overall reductions in stroke and MCVEs. CONCLUSIONS: Atorvastatin 80 mg/d is similarly efficacious in preventing strokes and other cardiovascular events, irrespective of baseline ischemic stroke subtype.
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Article Atorvastatin reduces the risk of cardiovascular events in patients with carotid atherosclerosis: a secondary analysis of the Stroke Prevention by Aggressive Reduction in Cholesterol Levels (SPARCL) trial. 2008
Sillesen H, Amarenco P, Hennerici MG, Callahan A, Goldstein LB, Zivin J, Messig M, Welch KM, Anonymous00035. · Department of Vascular Surgery, Rigshospitalet, University of Copenhagen, Copenhagen O, Denmark. · Stroke. · Pubmed #18845807 No free full text.
Abstract: BACKGROUND AND PURPOSE: The Stroke Prevention by Aggressive Reduction in Cholesterol Levels (SPARCL) trial found that treatment with atorvastatin 80 mg per day reduced the risk of stroke and cardiovascular events in patients with a recent transient ischemic attack (TIA) or stroke. We hypothesized this benefit would be greatest in the subgroup of patients with carotid stenosis. METHODS: The SPARCL trial randomized patients with TIA or stroke within 1 to 6 months without known coronary heart disease (CHD) and low-density lipoprotein cholesterol 100 to 190 mg/dL to treatment with atorvastatin 80 mg per day or placebo. Investigators identified subjects as having carotid stenosis not requiring revascularization at the time of randomization. Of the total SPARCL population, 1007 were documented as having carotid stenosis at baseline, 3271 did not, and the status of 453 was unknown. RESULTS: We found no heterogeneity in the treatment effect for the SPARCL primary (fatal and nonfatal stroke) and secondary end points between the group with and without carotid stenosis. The group with carotid artery stenosis had greater benefit when all cerebro- and cardiovascular events were combined. In the group with carotid artery stenosis, treatment with atorvastatin was associated with a 33% reduction in the risk of any stroke (hazard ratio [HR] 0.67, 95% confidence interval [CI] 0.47, 0.94; P=0.02), and a 43% reduction in risk of major coronary events (HR 0.57, 95% CI 0.32, 1.00; P=0.05). Later carotid revascularization was reduced by 56% (HR 0.44, 95% CI 0.24, 0.79; P=0.006) in the group randomized to atorvastatin. CONCLUSIONS: Consistent with the overall results of the SPARCL intention to treat population, intense lipid lowering with atorvastatin reduced the risk of cerebro- and cardiovascular events in patients with and without carotid stenosis. The carotid stenosis group may have greater benefit.
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