Association of Elevated NT-proBNP With Myocardial Fibrosis in the Multi-Ethnic Study of Atherosclerosis (MESA)

Chia Ying Liu, Susan R. Heckbert, Shenghan Lai, Bharath Ambale-Venkatesh, Mohammad R. Ostovaneh, Robyn L. McClelland, João A.C. Lima, David A. Bluemke

Research output: Contribution to journalArticlepeer-review

Abstract

Background Serum N-terminal pro–B-type natriuretic peptide (NT-proBNP) is considered a marker that is expressed in response to myocardial strain and possibly fibrosis. However, the relationship to myocardial fibrosis in a community-based population is unknown. Objectives The authors evaluated the relationship between cardiac magnetic resonance (CMR) measures of fibrosis and NT-proBNP levels in the MESA (Multi-Ethnic Study of Atherosclerosis) study. Methods A total of 1,334 participants (52% white, 23% black, 11% Chinese, 14% Hispanic, and 52% men with a mean age of 67.6 years) at 6 sites had both serum NT-proBNP measurements and CMR with T1 mapping of indices of fibrosis at 1.5 T. Univariate and multivariable regression analyses adjusting for demographics, cardiovascular risk factors, and left ventricular (LV) mass were performed to examine the association of log NT-proBNP with CMR T1 mapping indices. Results In the fully adjusted model, each 1-SD increment (0.44 pg/ml) of log NT-proBNP was associated with a 0.62% increment in extracellular volume fraction (p < 0.001), 0.011 increment in partition coefficient (p < 0.001), and 4.7-ms increment in native T1 (p = 0.001). Results remained unchanged after excluding individuals with clinical cardiovascular disease or late gadolinium enhancement (n = 167), and after replacing LV mass by LV end-diastolic volume in the regression models. Conclusions Elevated NT-proBNP is related to subclinical fibrosis in a community-based setting. (Multi-Ethnic Study of Atherosclerosis [MESA]; NCT00005487)

Original languageEnglish (US)
Pages (from-to)3102-3109
Number of pages8
JournalJournal of the American College of Cardiology
Volume70
Issue number25
DOIs
StatePublished - Dec 26 2017

Keywords

  • ECV
  • MR imaging
  • NT-proBNP
  • T1 mapping

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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