LCN2 and acute kidney injury: Although our conclusions may be revised in light of the findings from further studies including, for example, sampling of larger populations or analysis of the effects of surgical procedures on the renal artery, after stent graft repair surgery, with the proviso that correction with urine Cr may be necessary because NGAL can detect AKI more quickly than earliest detection using sCr, we advocate testing for urinary NGAL, corrected by uCr, as an early diagnostic indicator of AKI.