N-terminal pro-B-type natriuretic peptide, left ventricular mass, and incident heart failure: Multi-Ethnic Study of Atherosclerosis.
Authors
Eui-Young Choi ; Hossein Bahrami ; Colin O. Wu ; Philip Greenland ; Mary Cushman ; Lori B. Daniels ; Andre L.C. Almeida ; Kihei Yoneyama ; Anders Opdahl ; Aditya Jain ; Michael H. Criqui ; David Siscovick ; Christine Darwin ; Alan Maisel ; David A. Bluemke ; Joao A.C. Lima
African Americans/ethnology ; Aged ; Asian Americans/ethnology ; Biomarkers/blood ; European Continental Ancestry Group/ethnology ; Female ; Follow-Up Studies ; Heart Failure/diagnosis* ; Heart Failure/epidemiology* ; Heart Failure/ethnology ; Hispanic Americans/ethnology ; Humans ; Hypertrophy, Left Ventricular/pathology* ; Incidence ; Longitudinal Studies ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Natriuretic Peptide, Brain/blood* ; Peptide Fragments/blood* ; Predictive Value of Tests ; Prospective Studies ; Risk Factors
Keywords
African Americans/ethnology ; Aged ; Asian Americans/ethnology ; Biomarkers/blood ; European Continental Ancestry Group/ethnology ; Female ; Follow-Up Studies ; Heart Failure/diagnosis* ; Heart Failure/epidemiology* ; Heart Failure/ethnology ; Hispanic Americans/ethnology ; Humans ; Hypertrophy, Left Ventricular/pathology* ; Incidence ; Longitudinal Studies ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Natriuretic Peptide, Brain/blood* ; Peptide Fragments/blood* ; Predictive Value of Tests ; Prospective Studies ; Risk Factors
Abstract
BACKGROUND: Elevated N-terminal pro-B-type natriuretic peptide (NT-proBNP) is associated with clinically overt heart failure (HF). However, whether it provides additive prognostic information for incident HF beyond traditional risk factors and left ventricular (LV) mass index among multi-ethnic asymptomatic individuals has not yet been determined. We studied the associations of plasma NT-proBNP and magnetic resonance imaging defined LV mass index with incident HF in an asymptomatic multi-ethnic population.
METHODS AND RESULTS: A total of 5597 multi-ethnic participants without clinically apparent cardiovascular disease underwent baseline measurement of NT-proBNP and were followed for 5.5±1.1 years. Among them, 4163 also underwent baseline cardiac magnetic resonance imaging. During follow-up, 111 participants experienced incident HF. Higher NT-proBNP was significantly associated with incident HF, independent of baseline age, sex, ethnicity, systolic blood pressure, diabetes mellitus, smoking, estimated glomerular filtration rate, medications (anti-hypertensive and statin), LV mass index, and interim myocardial infarction (hazard ratio: 1.95 per 1U log NT-proBNP increment, 95% CI 1.54-2.46, P<0.001). This relationship held among different ethnic groups, non-Hispanic whites, African-Americans, and Hispanics. Most importantly, NT-proBNP provided additive prognostic value beyond both traditional risk factors and LV mass index for predicting incident HF (integrated discrimination index=0.046, P<0.001; net reclassification index; 6-year risk probability categorized by <3%, 3-10%, >10% =0.175, P=0.019; category-less net reclassification index=0.561, P<0.001).
CONCLUSIONS: Plasma NT-proBNP provides incremental prognostic information beyond traditional risk factors and the magnetic resonance imaging-determined LV mass index for incident symptomatic HF in an asymptomatic multi-ethnic population.