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Sökning: WFRF:(Pedersen N. L.) > (2005-2009) > Linköpings universitet

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1.
  • Tikkanen, M.J., et al. (författare)
  • Comparison of Efficacy and Safety of Atorvastatin (80 mg) to Simvastatin (20 to 40 mg) in Patients Aged less than65 Versus =65 Years With Coronary Heart Disease (from the Incremental DEcrease through Aggressive Lipid Lowering [IDEAL] Study)
  • 2009
  • Ingår i: American Journal of Cardiology. - : Elsevier BV. - 0002-9149. ; 103:5, s. 577-582
  • Tidskriftsartikel (refereegranskat)abstract
    • The efficacy and safety of atorvastatin (80 mg/day) versus simvastatin (20 to 40 mg/day) in older (age =65 years) versus younger (less than65 years) patients were assessed in a prespecified secondary analysis of the 8,888 patients with myocardial infarction in the IDEAL trial, a randomized open-label study. Several cardiovascular end points were evaluated, including the occurrence of a first major coronary event (MCE; nonfatal myocardial infarction, coronary heart disease death, or resuscitated cardiac arrest), the primary end point of the trial, and occurrence of any cardiovascular event (MCE, stroke, revascularization, unstable angina, congestive heart failure, and peripheral artery disease). Although there were no significant interactions between age and treatment, the magnitude of effect in favor of atorvastatin was higher in younger versus older patients (occurrence of first MCE, hazard ratio [HR] 0.80, 95% confidence interval [CI] 0.66 to 0.98; and HR 0.95, 95% CI 0.80 to 1.15, respectively; occurrence of any cardiovascular (CV) event, HR 0.80, 95% CI 0.71 to 0.89; and HR 0.88, 95% CI 0.79 to 0.99, respectively). These results were likely influenced by adherence, which was lower in older patients and those receiving atorvastatin compared with those receiving simvastatin. Rates of any reported serious adverse event were higher in older patients, but did not differ between the 2 statin groups. In conclusion, except for any CV events in the older group, significant reductions in primary and secondary end points were observed only in patients less than65 years of age. The safety of atorvastatin (80 mg) and simvastatin (20 to 40 mg) was similar in patients aged less than65 and greater than65 years with stable coronary disease.
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2.
  • van, der Steeg W.A., et al. (författare)
  • High-Density Lipoprotein Cholesterol, High-Density Lipoprotein Particle Size, and Apolipoprotein A-I : Significance for Cardiovascular Risk. The IDEAL and EPIC-Norfolk Studies
  • 2008
  • Ingår i: Journal of the American College of Cardiology. - : Elsevier BV. - 0735-1097 .- 1558-3597. ; 51:6, s. 634-642
  • Tidskriftsartikel (refereegranskat)abstract
    • Objectives: This study was designed to assess the relationship of high-density-lipoprotein cholesterol (HDL-C), HDL particle size, and apolipoprotein A-I (apoA-I) with the occurrence of coronary artery disease (CAD), with a focus on the effect of very high values of these parameters. Background: High plasma levels of HDL-C and apoA-I are inversely related to the risk of CAD. However, recent data suggest that this relationship does not hold true for very high HDL-C levels, particularly when a preponderance of large HDL particles is observed. Methods: We conducted a post-hoc analysis of 2 prospective studies: the IDEAL (Incremental Decrease in End Points through Aggressive Lipid Lowering, n = 8,888) trial comparing the efficacy of high-dose to usual-dose statin treatment for the secondary prevention of cardiovascular events, and the EPIC (European Prospective Investigation into Cancer and Nutrition)-Norfolk case-control study, including apparently healthy individuals who did (cases, n = 858) or did not (control patients, n = 1,491) develop CAD during follow-up. In IDEAL, only HDL-C and apoA-I were available, in EPIC-Norfolk, nuclear magnetic resonance spectroscopy-determined HDL particle sizes were also available. Results: In the IDEAL study, higher HDL-C proved a significant major cardiac event risk factor following adjustment for age, gender, smoking, apoA-I, and apoB. A similar association was observed for HDL particle size in EPIC-Norfolk. Increased risk estimates were particularly present in the high ends of the distributions. In contrast, apoA-I remained negatively associated across the major part of its distribution in both studies. Conclusions: When apoA-I and apoB are kept constant, HDL-C and HDL particle size may confer risk at very high values. This does not hold true for very high levels of apoA-I at fixed levels of HDL-C and apoB. These findings may have important consequences for assessment and treatment of CAD risk. © 2008 American College of Cardiology Foundation.
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