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High-density lipoprotein, but not low-density lipoprotein cholesterol levels influence short-term prognosis after acute coronary syndrome: Results from the MIRACL trial
Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Internal Medicine. Östergötlands Läns Landsting, Centre for Medicine, Department of Endocrinology and Gastroenterology UHL.
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2005 (English)In: European Heart Journal, ISSN 0195-668X, Vol. 26, no 9, 890-896 p.Article in journal (Refereed) Published
Abstract [en]

Aims: Patients with acute coronary syndrome (ACS) in the Myocardial lschaemia Reduction with Aggressive Cholesterol Lowering (MIRACL) study had diminished cardiovascular events after 16 weeks of treatment of atorvastatin 80 mg daily. We determined whether plasma lipoproteins at baseline and then at 6 weeks after randomization predicted clinical outcome. Methods and results: Cox proportional hazards models were constructed to determine relations between lipoproteins and clinical endpoint events. Baseline LDL cholesterol (LDL-C) did not predict outcome. In contrast, baseline HDL-C predicted outcome with a hazard ratio of 0.986 per mg/dL increment in HDL-C, P < 0.001, indicating 1.4% reduction in risk for each 1 mg/dL increase in HDL-C. Atorvastatin treatment profoundly lowered LDL-C, but had minimal effect on HDL-C. Neither Week 6 LDL-C nor absolute change of LDL-C from baseline by Week 6 had any significant impact on clinical endpoints occurring between Week 6 and Week 16 after randomization. Conclusion Plasma HDL-C, but not LDL-C, measured in the initial stage of ACS predicts the risk of recurrent cardiovascular events over the ensuing 16 weeks. LDL-C reduction does not account for the clinical risk reduction with atorvastatin treatment after ACS. This finding may suggest that the clinical benefit of atorvastatin after ACS is mediated by qualitative changes in the LDL particle and/or by non-lipid (pleiotropic) effects of the drug.

Place, publisher, year, edition, pages
2005. Vol. 26, no 9, 890-896 p.
Keyword [en]
acute coronary syndrome, intervention study, lipoprotein, statin
National Category
Medical and Health Sciences
URN: urn:nbn:se:liu:diva-28391DOI: 10.1093/eurheartj/ehi186Local ID: 13527OAI: diva2:249197
Available from: 2009-10-09 Created: 2009-10-09 Last updated: 2011-01-12

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Olsson, Anders
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Faculty of Health SciencesInternal MedicineDepartment of Endocrinology and Gastroenterology UHL
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