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Chronic kidney disease, even at moderate stages, is characterized by a high incidence of cardiovascular events. Subclinical damage to large arteries, such as increased arterial stiffness and outward remodeling, is a classical hallmark of patients with chronic kidney disease. Whether large artery stiffness and remodeling influence the occurrence of cardiovascular events and the mortality of patients with chronic kidney disease (stages 2-5) is still debated. This prospective study included 439 patients with chronic kidney disease (mean age, 59.8 ± 14.5 years) with a mean measured glomerular filtration rate of 37 mL/min per 1.73 m(2). Baseline aortic stiffness was estimated through carotid-femoral pulse wave velocity measurements; carotid stiffness, diameter, and intima-media thickness were measured with a high-resolution echotracking system. For the overall group of patients, the 5-year estimated survival and cumulative incidence of cardiovascular events were 87% and 16%, respectively. In regression analyses adjusted on classical cardiovascular and renal risk factors, aortic stiffness remained significantly associated with all-cause mortality (for 1 SD, Cox model-derived relative risk [95% CI], 1.48 [1.09-2.02]) and with fatal and nonfatal cardiovascular events (for 1 SD, Fine and Gray competing risks model-derived relative risk [95% CI], 1.35 [1.05-1.75]). Net reclassification improvement index was significant (29.0% [2.3-42.0%]). Carotid internal diameter was also independently associated with all-cause mortality. This study shows that increased aortic stiffness and carotid internal diameter are independent predictors of mortality in patients with stages 2 to 5 chronic kidney disease and that aortic stiffness improves the prediction of the risk.

Large Artery Stiffening and Remodeling Are Independently Associated With All-Cause Mortality and Cardiovascular Events in Chronic Kidney Disease