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International Journal of Nephrology
Volume 2011 (2011), Article ID 785974, 5 pages
Clinical Study

Worsening Renal Function in Patients Hospitalized with Acute Heart Failure: Risk Factors and Prognostic Significances

Unit of Emergency and Internal Medicine, Careggi Hospital, 50100 Florence, Italy

Received 2 August 2010; Accepted 31 August 2010

Academic Editor: Mitchell H. Rosner

Copyright © 2011 Valerio Verdiani et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Objectives. To determine the prevalence, the clinical predictors, and the prognostic significances of Worsening Renal Function (WRF) in hospitalized patients with Acute Heart Failure (AHF). Methods. 394 consecutively hospitalized patients with AHF were evaluated. WRF was defined as an increase in serum creatinine of 0 . 3  mg/dL from baseline to discharge. Results. Nearly 11% of patients developed WRF. The independent predictors of WRF analyzed with a multivariable logistic regression were history of chronic kidney disease ( 𝑃 = . 0 4 7 ), age > 75 years ( 𝑃 = . 0 4 9 ), and admission heart rates 1 0 0  bpm ( 𝑃 = . 0 0 4 ). Mortality or rehospitalization rates at 1 month, 6 months, and 1year were not significantly different between patients with WRF and those without WRF. Conclusion. Different clinical predictors at hospital admission can be used to identify patients at increased risk for developing WRF. Patients with WRF compared with those without WRF experienced no significant differences in hospital length of stay, mortality, or rehospitalization rates.