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Evaluation of discriminative capacity of two formulas of CKD-EPI to predict complications after the first episode of heart failure with preserved ejection fraction

Authors Shchekochikhin D, Nikiforova T, Shilova A, Nesterov A, Baturina O, Gognieva D, Kozlovskaya N, Syrkin A, Kopylov P

Received 8 December 2018

Accepted for publication 12 April 2019

Published 7 May 2019 Volume 2019:12 Pages 113—118


Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 2

Editor who approved publication: Professor Pravin Singhal

Dmitry Shchekochikhin,1 Tatiana Nikiforova,1 Alexandra Shilova,2 Alexey Nesterov,2 Olga Baturina,1 Daria Gognieva,1 Natalia Kozlovskaya,3 Abram Syrkin,1 Philipp Kopylov1

1Department of Preventive and Emergency Cardiology of the Faculty of Medicine, I.M. Sechenov First Moscow State Medical University, Moscow 119991, Russia; 2Department of Interventional Cardiology and Cardiac Rehabilitation, Pirogov Russian National Research Medical University (RNRMU), Moscow 117997, Russia; 3Department of Internal Medicine and Occupational Medicine, Eramishancev Moscow Clinical Hospital, Moscow 129327, Russia

Background: Determining the prognosis of heart failure with preserved ejection fraction (HFpEF) is problematic, as the ejection fraction cannot be used. Formulae that estimate glomerular filtration rate (eGFR) may be potential prognosticators for this condition, since renal dysfunction is a well-known predictor of poor outcomes of all forms of heart failure.
Methods: A prospective observational study of 117 HFpEF patients (average age 71.6±9.1 years; 65.8% women) who had eGFR determined after their first episode of cardiac decompensation by two different chronic kidney disease epidemiology collaboration (CKD-EPI) equations. The ability to predict hospitalizations and mortality over 24 months by the two equations were compared.
Results: The CKD-EPI formula based on serum creatinine only performed poorly. However, the CKD-EPI equation that used both serum creatinine and serum cystatin C was associated with unfavorable outcome: eGFR 2, predicted 24-month mortality (HR=4.21 [1.32;13.43], p=0.02) and the combined endpoint of mortality and hospitalization (HR 2.45 [1.42;4.22], p=0.001). .
Conclusions: eGFR by the CKD-EPI equation based on serum creatinine and cystatin C levels, but not by the CKD-EPI creatinine only equation, predicts the outcome of HFpEF patients.

Keywords: cystatin C, CKD-EPI equation, heart failure with preserved left ventricle ejection fraction, estimated glomerular filtration rate

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