Interrelations Between Arterial Stiffness, Target Organ Damage, and Cardiovascular Disease Outcomes

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Abstract
Background: Excess transmission of pressure pulsatility caused by increased arterial stiffness may incur microcirculatory damage in end organs (target organ damage [TOD] ) and, in turn, elevate risk for cardiovascular disease ( CVD ) events. Methods and Results: We related arterial stiffness measures (carotid‐femoral pulse wave velocity, mean arterial pressure, central pulse pressure) to the prevalence and incidence of TOD (defined as albuminuria and/or echocardiographic left ventricular hypertrophy) in up to 6203 Framingham Study participants (mean age 50±15 years, 54% women). We then related presence of TOD to incident CVD in multivariable Cox regression models without and with adjustment for arterial stiffness measures. Cross‐sectionally, greater arterial stiffness was associated with a higher prevalence of TOD (adjusted odds ratios ranging from 1.23 to 1.54 per SD increment in arterial stiffness measure, P P P P <0.05), which was attenuated upon adjustment for baseline arterial stiffness measures by 5–21%. Conclusions: Elevated arterial stiffness is associated with presence of TOD and may partially mediate the relations of TOD with incident CVD . Our observations in a large community‐based sample suggest that mitigating arterial stiffness may lower the burden of TOD and, in turn, clinical CVD .

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