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Table 1 KDIGO classification of AKI

From: COMMENCE trial (Comparing hypOtherMic teMperaturEs duriNg hemiarCh surgEry): a randomized controlled trial of mild vs moderate hypothermia on patient outcomes in aortic hemiarch surgery with anterograde cerebral perfusion

StageSerum creatinineUrine output
11.5–1.9 times baseline
or
≥ 0.3 mg/dl (26.5 μmol/l) increase
< 0.5 ml/kg/h for 6–12 h
22.0–2.9 times baseline< 0.5 ml/kg/h for ≥12 h
33.0 times baseline
or
Increase in serum creatinine to ≥ 4 mg/dl (353.6 μmol/l)
or
initiation of renal replacement therapy
<  0.3 ml/kg/hr. for ≥24 h
or
Anuria for ≥ 12 h