Journal
ESC HEART FAILURE
Volume 5, Issue 3, Pages 322-331Publisher
WILEY PERIODICALS, INC
DOI: 10.1002/ehf2.12264
Keywords
Acute decompensated heart failure; Acute renal failure; Cardio renal syndrome; Acute kidney injury; RIFLE criteria
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AimsWhether or not the definition of a worsening renal function (WRF) is adequate for the evaluation of acute renal failure in patients with acute heart failure is unclear. Methods and resultsOne thousand and eighty-three patients with acute heart failure were analysed. A WRF, indicated by a change in serum creatinine 0.3mg/mL during the first 5days, occurred in 360 patients while no-WRF, indicated by a change <0.3mg/dL, in 723 patients. Acute kidney injury (AKI) upon admission was defined based on the ratio of the serum creatinine value recorded on admission to the baseline creatinine value and placed into groups based on the degree of AKI: no-AKI (n=751), Class R (risk; n=193), Class I (injury; n=41), or Class F (failure; n=98). The patients were assigned to another set of four groups: no-WRF/no-AKI (n=512), no-WRF/AKI (n=211), WRF/no-AKI (n=239), and WRF/AKI (n=121). A multivariate logistic regression model found that no-WRF/AKI and WRF/AKI were independently associated with 365 day mortality (hazard ratio: 1.916; 95% confidence interval: 1.234-2.974 and hazard ratio: 3.622; 95% confidence interval: 2.332-5.624). Kaplan-Meier survival curves showed that the rate of any-cause death during 1year was significantly poorer in the no-WRF/AKI and WRF/AKI groups than in the WRF/no-AKI and no-WRF/no-AKI groups and in Class I and Class F than in Class R and the no-AKI group. ConclusionsThe presence of AKI on admission, especially Class I and Class F status, is associated with a poor prognosis despite the lack of a WRF within the first 5days. The prognostic ability of AKI on admission may be superior to WRF within the first 5days.
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