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  • Title: Incidence, morbidity, and mortality of contrast-induced acute kidney injury in a surgical intensive care unit: a prospective cohort study.
    Author: Valette X, Parienti JJ, Plaud B, Lehoux P, Samba D, Hanouz JL.
    Journal: J Crit Care; 2012 Jun; 27(3):322.e1-5. PubMed ID: 22033061.
    Abstract:
    PURPOSE: Data on contrast-induced acute kidney injury (CI-AKI) in intensive care unit (ICU) are scarce and controversial. The objectives of the study were to evaluate the incidence and characteristics of CI-AKI in a surgical ICU. MATERIALS AND METHODS: We conducted a 13-month prospective observational study. Three definitions were compared to characterize CI-AKI: Barrett and Parfrey criteria; Risk of renal dysfunction, Injury to the kidney, Failure of kidney function, Loss of kidney function and End stage renal disease (RIFLE) classification; and Acute Kidney Injury Network (AKIN) criteria. Patients hospitalized in surgical ICU who had received an injection of contrast medium, who were not on renal replacement therapy, who had stable serum creatinine before injection, and no other etiology for new acute kidney injury were included. RESULTS: One hundred one patients were included. The frequency of CI-AKI was 17%, 19%, and 19% according to Barrett and Parfrey criteria; RIFLE classification; and AKIN criteria, respectively. Diabetes mellitus, creatinine clearance less than 60 mL/min, and concomitant aminoglycoside administration were associated with CI-AKI. Statistically significant associations were found between CI-AKI and renal replacement therapy with all 3 definitions and between CI-AKI and mortality when AKIN criteria were used. CONCLUSIONS: These results show that CI-AKI is not inconsequential in critically ill patients. In the present study, AKIN criteria appear to be most relevant to define CI-AKI. Further studies are required to explore CI-AKI prevention in ICU.
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