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Multicenter Study
. 2017 May;10(5):e003536.
doi: 10.1161/CIRCHEARTFAILURE.116.003536.

Cardiometabolic Traits and Systolic Mechanics in the Community

Jennifer E Ho  1 , Elizabeth L McCabe  2 , Thomas J Wang  2 , Martin G Larson  2 , Daniel Levy  2 , Connie Tsao  2 , Jayashri Aragam  2 , Gary F Mitchell  2 , Emelia J Benjamin  2 , Ramachandran S Vasan  2 , Susan Cheng  2
Affiliations
Multicenter Study

Cardiometabolic Traits and Systolic Mechanics in the Community

Jennifer E Ho et al. Circ Heart Fail. 2017 May.

Abstract

Background: Obesity and cardiometabolic dysfunction are associated with increased risk of heart failure and other cardiovascular diseases. We sought to examine the association of cardiometabolic traits with left ventricular (LV) cardiac mechanics. We hypothesized that specific obesity-related phenotypes are associated with distinct aspects of LV strain.

Methods and results: We evaluated the associations of obesity-related phenotypes, including central adiposity, diabetes mellitus, insulin resistance, and circulating adipokine concentrations with echocardiographic measures of LV mechanical function among participants of the Framingham Heart Study Offspring and Third Generation cohorts. Among 6231 participants, the mean age was 51±16 years, and 54% were women. Greater body mass index was associated with worse LV longitudinal strain, radial strain (apical view), and longitudinal synchrony (multivariable-adjusted P<0.0001). After accounting for body mass index, we found that central adiposity, as measured by waist circumference, was associated with worse global longitudinal strain and synchrony (P≤0.006). Measures of insulin resistance, dyslipidemia, and diabetes mellitus also were associated with distinct aspects of LV mechanical function. Circulating leptin concentrations were associated with global longitudinal and radial strain (apical view, P<0.0001), whereas no such association was found with leptin receptor, adiponectin, or C-reactive protein.

Conclusions: Our findings highlight the association of central obesity and related cardiometabolic phenotypes above and beyond body mass index with subclinical measures of LV mechanical function. Interestingly, obesity-related traits were associated with distinct aspects of LV mechanics, underscoring potential differential effects along specific LV planes of deformation. These findings may shed light onto obesity-related cardiac remodeling and heart failure.

Keywords: adipokine; echocardiography; epidemiology; left ventricular function; obesity.

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Figures

Figure 1
Figure 1
Least squared means of global longitudinal strain by number of metabolic syndrome criteria, adjusted for age and sex. Error bars represent standard errors.
See this image and copyright information in PMC

Comment in

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