Screening the population for left ventricular hypertrophy and left ventricular systolic dysfunction using natriuretic peptides: Results from the Dallas Heart Study
Background Identification of individuals in the community with left ventricular systolic dysfunction (LVSD) or left ventricular hypertrophy (LVH) may allow earlier initiation of disease-modifying treatment. We performed a comprehensive evaluation of the screening performance of B-type natriuretic pe...
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Published in | The American heart journal Vol. 157; no. 4; pp. 746 - 753.e2 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
New York, NY
Mosby, Inc
01.04.2009
Mosby Elsevier Limited |
Subjects | |
Online Access | Get full text |
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Summary: | Background Identification of individuals in the community with left ventricular systolic dysfunction (LVSD) or left ventricular hypertrophy (LVH) may allow earlier initiation of disease-modifying treatment. We performed a comprehensive evaluation of the screening performance of B-type natriuretic peptide (BNP) and N-terminal pro-BNP (NT-proBNP) for LVSD or LVH. Methods In 2,429 subjects without a history of heart failure, myocardial infarction, valvular abnormalities, or a serum creatinine >2.0 mg/dL enrolled in the Dallas Heart Study, measurement of BNP and NT-proBNP and cardiovascular magnetic resonance imaging were performed. Results B-type natriuretic peptide and NT-proBNP were robustly associated with magnetic resonance imaging–defined LVH and LVSD (ejection fraction <55%) among men and women ( P < .0001 for each). In the overall population, neither test discriminated well for LVH or LVSD (area under the receiver operating characteristic curve [AUROC] <0.7). Among women, no differences in AUROC were observed between BNP and NT-proBNP. Among men, AUROCs were similar between BNP and NT-proBNP in the overall population, but among subgroups age 50 or older, or with hypertension, the AUROCs for NT-proBNP (0.73-0.79) were higher than for BNP (0.63-0.69, P < .05 for each comparison). Compared with subjects with isolated BNP elevation (>97.5th percentile), those with isolated NT-proBNP elevation had worse renal function and more LVH and coronary calcium ( P < .05 for each). Conclusions Overall, neither BNP nor NT-proBNP accurately discriminated subjects with LVH or LVSD in this predominately young and healthy population-based cohort. However, among high-risk men, NT-proBNP performed slightly better than BNP and comparably with other routinely used screening tests such as prostate-specific antigen measurement for prostate cancer. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0002-8703 1097-6744 |
DOI: | 10.1016/j.ahj.2008.12.017 |