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Prevalence and pathophysiological mechanisms of elevated cardiac troponin 1 levels in a population-based sample of elderly subjects
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences. (UCR)
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Oncology, Radiology and Clinical Immunology, Radiology.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Oncology, Radiology and Clinical Immunology, Radiology. (Ahlström)
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2008 (English)In: European Heart Journal, ISSN 0195-668X, E-ISSN 1522-9645, Vol. 29, no 18, 2252-2258 p.Article in journal (Refereed) Published
Abstract [en]

AIMS: To evaluate the prevalence of cardiac troponin I (cTnI) elevation in an elderly community population and the association of cTnI levels with cardiovascular risk factors, vascular inflammation, atherosclerosis, cardiac performance, and areas indicative of infarcted myocardium identified by cardiac magnetic resonance imaging. METHODS AND RESULTS: cTnI elevation defined as cTnI levels >0.01 microg/L (Access AccuTnI, Beckman Coulter) was found in 21.8% of the study participants (n = 1005). cTnI > 0.01 microg/L was associated with cardiovascular high-risk features, the burden of atherosclerosis in the carotid arteries, left-ventricular mass, and impaired left-ventricular systolic function. No associations were found between cTnI and inflammatory activity, diastolic dysfunction, or myocardial scars. Male gender (OR 1.6; 95% CI 1.1-2.4), ischaemic ECG changes (OR 1.7; 95% CI 1.1-2.7), and NT-pro-brain natriuretic peptide levels (OR 1.4; 95% CI 1.1-1.7) independently predicted cTnI > 0.01 microg/L. cTnI > 0.01 microg/L correlated also to an increased cardiovascular risk according to the Framingham risk score. CONCLUSION: cTnI > 0.01 microg/L is relatively common in elderly subjects and is associated with cardiovascular high-risk features and impaired cardiac performance. Cardiac troponin determined by a highly sensitive assay might thus serve as an instrument for the identification of subjects at high cardiovascular risk in general populations.

Place, publisher, year, edition, pages
2008. Vol. 29, no 18, 2252-2258 p.
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Medical and Health Sciences
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URN: urn:nbn:se:uu:diva-104861DOI: 10.1093/eurheartj/ehn327ISI: 000259327000013PubMedID: 18606612OAI: oai:DiVA.org:uu-104861DiVA: diva2:220197
Available from: 2009-05-29 Created: 2009-05-29 Last updated: 2012-07-11Bibliographically approved

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Eggers, Kai M.Ahlström, HåkanBjerner, TomasEbeling Barbier, CharlotteLarsson, AndersLindahl, Bertil

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