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ORIGINAL ARTICLE

The potential of cystatin-C to evaluate the prognosis of acute heart failure: A comparative study

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Pages 72-76 | Received 02 May 2015, Accepted 24 May 2016, Published online: 05 Aug 2016
 

Abstract

Background: The prognosis of acute heart failure (HF) can be determined by cardio-renal function which is assessed by cystatin-C (Cys-C). We evaluated whether Cys-C could be a more useful prognostic indicator in acute HF, compared with uric acid (UA) and N-terminal pro-B-type natriuretic peptide (NT-proBNP).

Methods: Two hundred thirty-two HF patients in the emergency room were studied using measurements of Cys-C, UA, and NT-proBNP. During the follow-up, cardiac events, defined as the composites of recurrent HF or cardiac death, were determined.

Results: Seventy-seven cardiac events (28 cardiac deaths, 49 recurrent HFs) occurred over two years. The events group revealed higher levels of Cys-C, UA, and NT-proBNP. They showed increased blood urea nitrogen and creatinine, reduced septal tissue Doppler velocity (TVI-Sm), and low frequencies of beta-blockers (BB), diuretics and angiotensin-converting enzyme inhibitors/-receptor blockers. Cys-C (the best cutoff: 1.7 mg/l) had a steady, persistent hazard ratio (HR) over two years. On multivariate analysis, Cys-C, TVI-Sm, and BB were significant predictors for adverse events. Cys-C provided an incremental value for prognosis more than NT-proBNP and UA did over the follow-up period.

Conclusions: Compared with UA and NT-proBNP, Cys-C could be better prognostic biomarker for cardiac events two years after acute HF.

Acknowledgment

The authors should like to make grateful acknowledgments to Ms J.-H. Jeon and to Ms M.-Y. Kim for their help with the data analysis.

Funding

This research received no grants from any funding agency in the public, commercial or not-for-profit sectors.

Declaration of interest: The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.

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