N-terminal B-type natriuretic peptide and the association with left ventricular diastolic function in a population at high risk of incident heart failure: Results of the SCReening Evaluation of the Evolution of New-Heart Failure Study (SCREEN-HF)
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AimsImpaired diastolic function is associated with increased morbidity and mortality, but antecedents and predictors of progression to heart failure (HF) are not well understood. We examined associations between NT-proBNP, HF risk factors, and diastolic function in a population at high risk for incident HF.Methods and resultsA total of 3550 subjects at high risk for incident HF (=60 years plus =1 HF risk factor), but without pre-existing HF or LV dysfunction were recruited. Participants at highest risk (n = 664) (NT-proBNP in the highest quintile >254 pg/mL) underwent echocardiography. Moderate or severe diastolic dysfunction was observed in 25% [95% confidence interval (CI) 21-29%] of participants. Age (P = 0.001), male gender (P = 0.03), diabetes (P = 0.03), and NT-proBNP (P = 0.002) were associated with severity of diastolic dysfunction after adjustment for HF risk factors and LVEF. In regression analysis, log-transformed NT-proBNP was also associated with LV mass index (P = 0.05), left atrial size (P < 0.0001), and Doppler ratio of the mitral valve E/e' (P = 0.001). Multiple HF risk factors were present in the majority of participants (>70%), but no association was observed between diastolic dysfunction and the number of risk factors reported (P = 0.3). ConclusionDiastolic dysfunction was observed in one in four of these high risk subjects (= 60 years, HF risk factor, NT-proBNP >254 pg/mL). NT-proBNP, age and diabetes were strongly associated with severity of diastolic dysfunction, whereas other HF risk factors and LVEF were not. More targeted surveillance using a combination of risk factors and biomarkers may improve identification of those at great risk of incident HF. All rights reserved. © 2013 The Author.
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NT-proB natriuretic peptide, risk factors and asymptomatic left ventricular dysfunction: Results of the SCReening Evaluation of the Evolution of New Heart Failure Study (SCREEN-HF)McGrady, M.; Reid, Christopher; Shiel, L.; Wolfe, R.; Boffa, U.; Liew, D.; Campbell, D.; Prior, D.; Stewart, S.; Krum, H. (2013)Background We assessed left ventricular dysfunction in a population at high risk for heart failure (HF), and explored associations between ventricular function, HF risk factors and NT-proB natriuretic peptide (NT-proBNP). ...
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