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. 2011 Aug;16(4):253-9.
doi: 10.1177/1358863X11408640. Epub 2011 Jun 27.

Relationship between central and peripheral atherosclerosis and left ventricular dysfunction in a community population

Connie W Tsao  1 , Philimon Gona, Carol Salton, Joanne M Murabito, Noriko Oyama, Peter G Danias, Christopher J O'Donnell, Warren J Manning, Susan B Yeon
Affiliations

Relationship between central and peripheral atherosclerosis and left ventricular dysfunction in a community population

Connie W Tsao et al. Vasc Med. 2011 Aug.

Abstract

We aimed to determine the relationships between resting left ventricular (LV) wall motion abnormalities (WMAs), aortic plaque, and peripheral artery disease (PAD) in a community cohort. A total of 1726 Framingham Heart Study Offspring Cohort participants (806 males, 65 ± 9 years) underwent cardiovascular magnetic resonance with quantification of aortic plaque volume and assessment of regional left ventricular systolic function. Claudication, lower extremity revascularization, and ankle-brachial index (ABI) were recorded at the most contemporaneous examination visit. WMAs were associated with greater aortic plaque burden, decreased ABI, and claudication in age- and sex-adjusted analyses (all p < 0.001), which were not significant after adjustment for cardiovascular risk factors. In age- and sex-adjusted analyses, both the presence (p < 0.001) and volume of aortic plaque were associated with decreased ABI (p < 0.001). After multivariable adjustment, an ABI ≤ 0.9 or prior revascularization was associated with a threefold odds of aortic plaque (p = 0.0083). Plaque volume significantly increased with decreasing ABI in multivariable-adjusted analyses (p < 0.0001). In this free-living population, associations of WMAs with aortic plaque burden and clinical measures of PAD were attenuated after adjustment for coronary heart disease risk factors. Aortic plaque volume and ABI remained strongly negatively correlated after multivariable adjustment. Our findings suggest that the association between coronary heart disease and non-coronary atherosclerosis is explained by cardiovascular risk factors. Aortic atherosclerosis and PAD remain strongly associated after multivariable adjustment, suggesting shared mechanisms beyond those captured by traditional risk factors.

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Figures

Figure 1
Figure 1
Odds of a WMA associated with peripheral arterial disease (PAD). Boxes represent Odds Ratio for a WMA; lines represent 95% CI. Claudication, ABI ≤0.9 or revascularization, and ABI 0.9-1.0 were associated with increased odds of a WMA in age- and sex-adjusted analyses. These associations were attenuated after multivariable adjustment.
Figure 2
Figure 2
Relationship of aortic plaque prevalence with ABI groups. The prevalence of aortic plaque increased with decreasing ABI group (p<0.001).
See this image and copyright information in PMC

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