• Eur. J. Clin. Invest. · Apr 2015

    Major bleeding risk prediction using Chronic Kidney Disease Epidemiology Collaboration and Modification of Diet in Renal Disease equations in acute coronary syndrome.

    • Pedro J Flores-Blanco, Ángel López-Cuenca, James L Januzzi, Francisco Marín, Marianela Sánchez-Martínez, Miriam Quintana-Giner, Ana I Romero-Aniorte, Mariano Valdés, and Sergio Manzano-Fernández.
    • Department of Cardiology, Hospital Universitario Virgen de la Arrixaca, Murcia, Spain.
    • Eur. J. Clin. Invest. 2015 Apr 1; 45 (4): 385-93.

    BackgroundChronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equations estimate glomerular filtration rate more accurately than the Modification of Diet in Renal Disease (MDRD) Study equation. Our aim was to evaluate whether CKD-EPI equations based on serum creatinine and/or cystatin C (CysC) predict risk for major bleeding (MB) more accurately than the MDRD Study equation in patients with non-ST-segment elevation acute coronary syndromes (ACS).Materials And MethodsThree hundred and fifty consecutive subjects with non-ST-segment elevation ACS (68 ± 12 years, 70% male) were studied. Glomerular filtration rate was estimated using the CKD-EPI and MDRD Study equations. The primary endpoint was the occurrence of MB during the follow-up, which was defined according to the Bleeding Academic Research Consortium Definition criteria as bleeding types 3-5.ResultsDuring the median follow-up of 589 days (interquartile range, 390-986), 27 patients had MB (0.04% events per person year). Patients with MB had worse kidney function parameters, regardless of the estimating equation used (P < 0.001). After multivariate Cox regression adjustment, both CysC-based CKD-EPI equations were independent predictors of MB (CKD-EPI(creatinine-cystatin) C per mL/min/1.73 m(2), HR = 0.973 (95%CI 0.955-0.991; P = 0.003) and CKD-EPI(cystatin) C per mL/min/1.73 m(2), HR = 0.976 (95%CI 0.976-0.992; P = 0.003), while the CKD-EPI(creatinine) and MDRD equations did not achieve statistical significance. Both CKD-EPI(creatine-cystatin) C and CKD-EPI(cystatin) C were associated with a significant improvement in MB risk reclassification.ConclusionsIn this cohort of non-ST-segment elevation ACS patients with relatively preserved renal function, both CysC-based CKD-EPI equations improved ability to predict risk for MB and were superior to other equations for this application.© 2015 Stichting European Society for Clinical Investigation Journal Foundation.

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