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. 2006 Dec 5;48(11):2285-92.
doi: 10.1016/j.jacc.2006.03.072. Epub 2006 Nov 9.

Traditional cardiovascular risk factors in relation to left ventricular mass, volume, and systolic function by cardiac magnetic resonance imaging: the Multiethnic Study of Atherosclerosis

Susan R Heckbert  1 , Wendy Post, Gregory D N Pearson, Donna K Arnett, Antoinette S Gomes, Michael Jerosch-Herold, W Gregory Hundley, Joao A Lima, David A Bluemke
Affiliations

Traditional cardiovascular risk factors in relation to left ventricular mass, volume, and systolic function by cardiac magnetic resonance imaging: the Multiethnic Study of Atherosclerosis

Susan R Heckbert et al. J Am Coll Cardiol. .

Abstract

Objectives: The goal of this study was to examine the cross-sectional associations of cardiovascular risk factors with left ventricular (LV) geometry and systolic function measured by cardiac magnetic resonance imaging (MRI) in the Multiethnic Study of Atherosclerosis (MESA).

Background: Cardiovascular risk factors including hypertension, smoking, and obesity are known to be associated with increased LV mass, but less is known about the association of risk factors with LV systolic function, particularly in populations without clinical cardiovascular disease.

Methods: Participants were from 4 racial/ethnic groups and were free of clinical cardiovascular disease. Blood pressure, health habits, body mass index, lipid levels, and glucose abnormalities were assessed and MRI exams performed at baseline (n = 4,869). Multivariable linear regression was used to model the association of risk factors with LV mass, end-diastolic volume, stroke volume, ejection fraction, and cardiac output.

Results: The mean age was 62 years, and 52% of the participants were women. After adjustment for sociodemographic variables and height, higher systolic blood pressure and body mass index were associated with larger LV mass and volumes. Current smoking and diabetes were associated with greater LV mass (+7.7 g, 95% confidence interval [CI] +5.5 to +9.9 and +3.5 g, 95% CI +1.2 to +5.8, respectively), and with lower stroke volume (-1.9 ml, 95% CI -3.3 to -0.5 and -4.5 ml, 95% CI -6.0 to -3.0, respectively) and lower ejection fraction (-1.6%, 95% CI -2.1 to -1.0 and -0.8%, 95% CI -1.5 to -0.2, respectively).

Conclusions: In this cohort free of clinical cardiovascular disease, modifiable risk factors were associated with subclinical alterations in LV size and systolic function as detected by cardiac MRI.

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Conflict of interest statement

Conflict of Interest Disclosures and Financial Disclosures: None.

Figures

Figures 1A and 1B
Figures 1A and 1B
Adjusted mean ejection fraction (standard error) for various levels of systolic (Figure 1A) and diastolic blood pressure (Figure 1B).
See this image and copyright information in PMC

References

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