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Blood Calcification Propensity, Cardiovascular Events, and Survival in Patients Receiving Hemodialysis in the EVOLVE Trial. | LitMetric

AI Article Synopsis

Article Abstract

Background And Objectives: Patients receiving hemodialysis are at risk of cardiovascular events. A novel blood test (T test) determines the individual calcification propensity of blood.

Design, Setting, Participants, & Measurements: T was determined in 2785 baseline serum samples of patients receiving hemodialysis enrolled in the Evaluation of Cinacalcet Therapy to Lower Cardiovascular Events (EVOLVE) trial and the T results were related to patient outcomes.

Results: Serum albumin, bicarbonate, HDL cholesterol, and creatinine were the main factors positively/directly and phosphate was the main factor negatively/inversely associated with T. The primary composite end point (all-cause mortality, myocardial infarction [MI], hospitalization for unstable angina, heart failure, or peripheral vascular event [PVE]) was reached in 1350 patients after a median follow-up time of 619 days. After adjustments for confounding, a lower T was independently associated with a higher risk of the primary composite end point as a continuous measure (hazard ratio [HR] per 1 SD lower T, 1.15; 95% confidence interval [95% CI], 1.08 to 1.22; P<0.001). Furthermore, lower T was associated with a higher risk in all-cause mortality (HR per 1 SD lower T, 1.10; 95% CI, 1.02 to 1.17; P=0.001), MI (HR per 1 SD lower T, 1.38; 95% CI, 1.19 to 1.60; P<0.001), and PVE (HR per 1 SD lower T, 1.22; 95% CI, 1.05 to 1.42; P=0.01). T improved risk prediction (integrated discrimination improvement and net reclassification improvement, P<0.001 and P=0.001) of the primary composite end point.

Conclusions: Blood calcification propensity was independently associated with the primary composite end point, all-cause mortality, MI, and PVE in the EVOLVE study and improved risk prediction. Prospective trials should clarify whether T-guided therapies improve outcomes.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5293330PMC
http://dx.doi.org/10.2215/CJN.04720416DOI Listing

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