High-sensitivity C-reactive protein as an independent predictor of progressive myocardial functional deterioration: the multiethnic study of atherosclerosis
Eui-Young Choi, Raymond T Yan, Veronica R S Fernandes, Anders Opdahl, Antoinette S Gomes, Andre L C Almeida, Colin O Wu, Kiang Liu, Jeffrey J Carr, Robyn L McClelland, David A Bluemke, Joao A C Lima, Eui-Young Choi, Raymond T Yan, Veronica R S Fernandes, Anders Opdahl, Antoinette S Gomes, Andre L C Almeida, Colin O Wu, Kiang Liu, Jeffrey J Carr, Robyn L McClelland, David A Bluemke, Joao A C Lima
Abstract
Background: Systemic inflammation has been linked to the development of heart failure in population studies including Multi-Ethnic Study of Atherosclerosis (MESA), but little evidence exists regarding potential mechanism of this relationship. In this study, we used longitudinal magnetic resonance imaging follow-up analysis to examine whether C-reactive protein (CRP) levels relate to progressive myocardial functional deterioration as a potential mechanism of incident heart failure.
Methods: Regional myocardial functional data from MESA participants who had baseline CRP measurement and also underwent tagged cardiac magnetic resonance imaging both at baseline and at 5-year follow-up were analyzed. Left ventricular midwall and midslice peak circumferential strain (Ecc), of which a more negative value denotes stronger regional myocardial function, was measured. Circumferential strain change was calculated as the difference between baseline and follow-up Ecc.
Results: During the follow-up period, participants (n = 785) with elevated CRP experienced a decrease in strain, independent of age, gender, and ethnicity (B = 0.081, ∆Ecc change per 1 mg/L CRP change, 95% CI 0.036-0.126, P < .001, model 1) and, additionally, beyond systolic blood pressure, heart rate, diabetes, smoking status, body mass index, current medication, and glomerular filtration rate (B = 0.099, 0.052-0.145, P < .001, model 2). The relationship remained statistically significant after further adjustment for left ventricular mass, coronary calcium score, and interim clinical coronary events (B = 0.098, 0.049-0.147, P < .001, model 3).
Conclusion: Higher CRP levels are related to progressive myocardial functional deterioration independent of subclinical atherosclerosis and clinical coronary events in asymptomatic individuals without previous history of heart disease.
Trial registration: ClinicalTrials.gov NCT00005487.
Copyright © 2012 Mosby, Inc. All rights reserved.
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Source: PubMed