Introduction. The incidence of acute kidney injury (AKI) considerably increases the mortality rate in polytrauma victims.\nUndoubtedly, early identification of patients at risk is crucial for timely implementation of preventive strategies in order to improve\ntheir prognosis. Therefore, we aimed to investigate if serum neutrophil gelatinase-associated lipocalin (sNGAL) may serve as a\ndiagnostic biomarker of early AKI in polytrauma victims, especially considering patients needing renal replacement theory (RRT).\nMaterial and Methods. Forty consecutive polytrauma victims.....................
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