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Arterial elasticity identified by pulse wave analysis and its relation to endothelial function in patients with coronary artery disease

Journal of Human Hypertension volume 21, pages 149–153 (2007)Cite this article

Abstract

Patients with coronary artery disease (CAD) have impaired endothelial function. Arterial elasticity is modulated by endothelial function. The association between arterial elasticity and endothelial function has not been reported in patients with CAD. The present study was designed to investigate whether endothelial dysfunction contributes to impaired arterial elasticity. Thirty patients with CAD and 30 control subjects were recruited. Large and small artery elasticity indices were non-invasively assessed using pulse wave analysis. Brachial artery endothelium-dependent and -independent function were assessed by vascular response to flow-mediated vasodilation (FMD) and sublingual nitroglyceride (NTG), respectively. C1 large artery elasticity index was not different in the CAD group compared with the control group. However, C2 small artery elasticity index was significantly reduced in the CAD group compared with the control group. Flow-mediated vasodilation (FMD) was also impaired in the CAD group compared with the control group. Flow-mediated vasodilation (FMD) in the brachial artery correlated with C2 small arterial elasticity index. But NTG-mediated brachial artery vasodilation was similar between the two groups. The present findings suggest that the patients with CAD have reduced C2 small arterial elasticity index and impaired FMD. Endothelial dysfunction is involved in diminished arterial elasticity, suggesting that C2 small arterial elasticity index is a novel surrogate measure for the clinical evaluation of endothelial function.

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Authors and Affiliations

  1. Department of Cardiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China

    J Tao, D-H Liu, L-C Wang, J-M Wang, Y Wang, Z Yang, Z-F Lou & A-L Tang

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  1. J Tao
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  2. D-H Liu
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Correspondence to J Tao.

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Tao, J., Liu, DH., Wang, LC. et al. Arterial elasticity identified by pulse wave analysis and its relation to endothelial function in patients with coronary artery disease. J Hum Hypertens 21, 149–153 (2007). https://doi.org/10.1038/sj.jhh.1002112

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  • DOI: https://doi.org/10.1038/sj.jhh.1002112

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