Influence of biochemical alterations on arterial stiffness in patients with end-stage renal disease

Arteriosclerosis, Thrombosis, and Vascular Biology
J BlacherGérard M London

Abstract

The incremental elastic modulus of the common carotid and radial arteries is increased in patients with end-stage renal disease (ESRD), independently of blood pressure, wall stress, and the presence of atherosclerotic alterations. Whether biochemical factors may be involved in the arterial changes and related to renal dysfunction remain largely ignored. To assess this question, we measured aortic (carotid-femoral), upper-limb (carotid-radial), and lower-limb (femoral-tibial) pulse wave velocity (PWV) in 74 ESRD patients undergoing hemodialysis in comparison with 57 control subjects similar in age, sex ratio, and mean blood pressure. We evaluated arterial blood pressure by sphygmomanometry, aortic calcifications and cardiac mass by echography, and routine biochemical parameters, total plasma homocysteine, and plasma endothelin levels by standard techniques. In the population of patients with ESRD, on the basis of multiple stepwise regression analysis, aortic PWV was positively and independently correlated with systolic blood pressure (P<.0001), age (P<.0001), prevalence of aortic calcification (P=.0004), and the prevalence of diabetes mellitus (P=.0043). Upper-limb PWV was influenced exclusively by mean blood pressure (P<.0001)....Continue Reading

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