Journal
JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY
Volume 55, Issue 11, Pages 1102-1109Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jacc.2009.11.050
Keywords
atherosclerosis; oxidative stress; inflammation; prognosis; risk factors
Categories
Funding
- Heart and Stroke Foundation of British Columbia
- Yukon, Vancouver, British Columbia, Canada
- Canadian Institutes of Health Research, Ottawa, Ontario, Canada
Ask authors/readers for more resources
Objectives We evaluated the relative and combined value of oxidative stress biomarkers for predicting cardiovascular mortality in patients undergoing selective coronary angiography. Background Oxidative stress participates in all stages of cardiovascular disease, from lipoprotein modification to plaque rupture, and biomarkers of oxidative stress predict development of coronary artery disease (CAD). Oxidative stress biomarkers merit investigation for the value they may offer for long-term cardiovascular risk prediction. Methods Myeloperoxidase (MPO), nitrotyrosine, oxidized low-density lipoprotein, and antioxidant capacity were measured in a prospective cohort of 885 selective coronary angiography patients followed up for >13 years for cardiovascular mortality. Results MPO independently predicted CAD, and top tertile MPO levels predicted a 2.4-fold risk of cardiovascular mortality (95% confidence interval [CI]: 1.47 to 2.98), compared with patients with lowest tertile MPO levels. MPO also improved risk model discrimination and patient risk category classification. Elevations in multiple oxidative stress biomarkers predicted increased mortality risk; however, the strongest risk prediction was achieved by assessing MPO and C-reactive protein (CRP) together. Patients with either MPO or CRP elevated had 5.3-fold higher cardiovascular mortality risk (95% CI: 1.86 to 14.9), and patients with high levels of both MPO and CRP had a 4.3-fold risk compared with patients with only elevated marker (95% CI: 2.26 to 8.31). These results remained significant with adjustment for cardiovascular risk factors and baseline disease burden. Conclusions MPO accurately predicted cardiovascular mortality risk in coronary angiography patients. Considering MPO and CRP together may improve long-term risk assessment and CAD patient outcomes. (J Am Coll Cardiol 2010; 55: 1102-9) (C) 2010 by the American College of Cardiology Foundation
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available