• Salvatore Di Somma, Laura Magrini, Benedetta De Berardinis, Rossella Marino, Enrico Ferri, Paolo Moscatelli, Paola Ballarino, Giuseppe Carpinteri, Paola Noto, Biancamaria Gliozzo, Lorenzo Paladino, and Enrico Di Stasio.
• Crit Care. 2013 Jan 1;17(1):R29.

IntroductionAcute kidney injury (AKI) is a common complication among hospitalized patients. The aim of this study was to evaluate the utility of blood neutrophil gelatinase-associated lipocalin (NGAL) assessment as an aid in the early risk evaluation for AKI development in admitted patients.MethodsThis is a multicenter Italian prospective emergency department (ED) cohort study in which we enrolled 665 patients admitted to hospital from the ED.ResultsBlood NGAL and serum creatinine (sCr) were determined at ED presentation (T0), and at: 6 (T6), 12 (T12), 24 (T24) and 72 (T72) hours after hospitalization. A preliminary assessment of AKI by the treating ED physician occurred in 218 out of 665 patients (33%), while RIFLE AKI by expert nephrologists was confirmed in 49 out of 665 patients (7%). The ED physician's initial judgement lacked sensitivity and specificity, overpredicting the diagnosis of AKI in 27% of the cohort, while missing 20% of those with AKI as a final diagnosis.ConclusionsOur study demonstrated that assessment of a patient's initial blood NGAL when admitted to hospital from the ED improved the initial clinical diagnosis of AKI and predicted in-hospital mortality. Blood NGAL assessment coupled with the ED physician's clinical judgment may prove useful in deciding the appropriate strategies for patients at risk for the development of AKI.See related commentary by Legrand et al., http://ccforum.com/content/17/2/132.

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