• Clinical cardiology · Feb 2015

    Multicenter Study

    Cystatin C-based CKD-EPI equations and N-terminal pro-B-type natriuretic peptide for predicting outcomes in acutely decompensated heart failure.

    • Pedro J Flores-Blanco, Sergio Manzano-Fernández, Juan I Pérez-Calvo, Francisco J Pastor-Pérez, Francisco J Ruiz-Ruiz, Francisco J Carrasco-Sánchez, José L Morales-Rull, Domingo Pascual-Figal, Luis Galisteo-Almeda, and James L Januzzi.
    • Division of Cardiology, University Hospital Virgen de la Arrixaca, School of Medicine, University of Murcia, Murcia, Spain.
    • Clin Cardiol. 2015 Feb 1; 38 (2): 106-13.

    BackgroundIn patients with acute decompensated heart failure (ADHF), both natriuretic peptides and renal impairment predict adverse outcomes. Our aim was to evaluate the complementary prognosis role of N-terminal pro-B-type natriuretic peptide (NT-proBNP) and the newly developed Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equations based on cystatin C (CysC) for glomerular filtration rate (GFR) estimation in ADHF patients.HypothesisRenal impairment assessed by CysC-based CKD-EPI equations and natriuretic peptides have complementary prognostic value in ADHF patients.MethodsThe study included 613 consecutive patients presenting with ADHF. At admission, plasma levels of NT-proBNP and CysC were determined. The GFR was estimated using CysC-based CKD-EPI equations. The primary endpoint was death from any cause and heart failure readmission.ResultsDuring the median follow-up of 365 days (interquartile range, 227-441 days), 323 patients (0.65 %patient-year) died or were readmitted for heart failure. After multivariate adjustment, estimated GFR <60 mL/min/1.73 m(2) and NT-proBNP >3251 pg/mL were independent predictors of adverse outcomes (P < 0.01). The combination of GFR <60 mL/min/1.73 m(2) and NT-proBNP >3251 pg/mL was associated with the highest risk of adverse outcomes. Furthermore, reclassification analyses demonstrated that use of both NT-proBNP and CysC-based CKD-EPI equations resulted in improving the accuracy for adverse outcomes prediction.ConclusionsIn patients with ADHF, the combination of NT-proBNP with estimated GFR using CysC-based CKD-EPI equations better predicts outcomes than either parameter alone and adds valuable complementary prognosis information to other established risk factors.© 2015 Wiley Periodicals, Inc.

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