Acute kidney injury in the perioperative period and in intensive care units (excluding renal replacement therapies)

Annals of Intensive Care

Table 2 Diagnosis and severity criteria of AKI in paediatric patients

Grade	Estimated plasma creatinine clearance	Urine output
Risk	Decrease >25 %	<0.5 ml/kg/h during >8 h
Injury	Decrease >50 %	<0.5 ml/kg/h during >16 h
Failure	Decrease >75 % or <35 ml/min/1.73 m²	<0.3 ml/kg/h during 24 h or anuria >12 h
Loss	Grade «failure» persisting for >4 weeks
End stage (chronic renal insufficiency)	Grade «failure» persisting for >3 months