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    "Malignant" left ventricular hypertrophy identifies subjects at high risk for progression to asymptomatic left ventricular dysfunction, heart failure, and death: MESA (Multi-Ethnic Study of Atherosclerosis)

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    Author
    Peters, M.N.
    Seliger, S.L.
    Christenson, R.H.
    Date
    2018
    Journal
    Journal of the American Heart Association
    Publisher
    American Heart Association Inc.
    Type
    Article
    
    Metadata
    Show full item record
    See at
    https://dx.doi.org/10.1161/JAHA.117.006619
    Abstract
    Background: As heart failure (HF)‐associated morbidity and mortality continue to escalate, enhanced focus on prevention is increasingly important. “Malignant” left ventricular (LV) hypertrophy (LVH): LVH combined with an elevated cardiac biomarker reflecting either injury (high‐sensitivity cardiac troponin T), or strain (amino‐terminal pro‐B‐type natriuretic peptide) has predicted accelerated progression to HF. We sought to determine whether malignant LVH identified community‐dwelling adults initially free of cardiovascular disease at high risk of asymptomatic decline in LV ejection fraction or a clinical cardiovascular event. Methods and Results: A total of 4985 of 6814 individuals without prevalent cardiovascular disease underwent baseline cardiac magnetic resonance for LVH in combination with measurement of plasma high‐sensitivity cardiac troponin T and amino‐terminal pro‐B‐type natriuretic peptide as part of MESA (Multi‐Ethnic Study of Atherosclerosis) and were subsequently divided into 4 groups: (1) No LVH, no elevated biomarkers (n=2206; 44.3%); (2) No LVH, ≥1 elevated biomarkers (n=2275; 45.7%); (3) LVH, no elevated biomarkers (n=153; 3.0%); and (4) LVH, ≥1 elevated biomarkers (malignant LVH; n=351; 7.0%). Cardiac magnetic resonance was repeated 10 years later (n=2831) for assessment of LV ejection fraction <50%. Median follow‐up was 12.2 years. Malignant LVH was associated with 7.0‐, 3.5‐, and 2.6‐fold adjusted increases in incidence of HF, cardiovascular death, and asymptomatic LV dysfunction, respectively, versus group 1. New‐onset HF was predominately HF with reduced ejection fraction (9.5‐fold increase). Conclusions: Malignant LVH is predictive of progression to asymptomatic LV dysfunction, HF (particularly HF with reduced ejection fraction), and cardiovascular death. Consequently, malignant LVH represents a high‐risk phenotype among individuals without known cardiovascular disease, which should be targeted for increased surveillance and more‐aggressive therapies. Copyright 2018 The Authors.
    Sponsors
    This research was supported by contracts HHSN 268201500003I, N01-HC-95159, N01-HC-95160, N01-HC-95161, N01-HC-95162, N01-HC-95163, N01-HC-95164, N01-HC-95165, N01-HC-95166, N01-HC-95167, N01-HC-95168, and N01-HC-95169 from the National Heart, Lung, and Blood Institute and by grants UL1-TR-000040 and UL1-TR-001079 from NCRR. Roche Diagnostics supported the measurement of hs-cTnT and additional NT-proBNP through an investigator-initiated grant (PI: deFilippi).
    Keyword
    Heart failure
    Left ventricular dysfunction
    Left ventricular hypertrophy
    Mortality
    N-terminal pro-B-type
    Troponin T
    Identifier to cite or link to this item
    https://www.scopus.com/inward/record.uri?eid=2-s2.0-85042159090&doi=10.1161%2fJAHA.117.006619&partnerID=40&md5=a0ce05b788dc7d2d4fd0e2cb21e76b8d; http://hdl.handle.net/10713/9433
    ae974a485f413a2113503eed53cd6c53
    10.1161/JAHA.117.006619
    Scopus Count
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