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Table 1 Staging of acute kidney injury based on KDIGO Clinical Practice Guidelines for Acute Kidney Injury [ 14 ]

From: Risk factors and outcome analysis after surgical management of ventricular septal rupture complicating acute myocardial infarction: a retrospective analysis

Stage

Serum creatinine

Urine output

1

1.5–1.9 times baseline

<0.5 ml/kg/h for 6–12 hours

OR

≥0.3 mg/dl (≥26.5 mmol/l) increase

2

2.0–2.9 times baseline

<0.5 ml/kg/h for ≥12 hours

3

3.0 times baseline

<0.3 ml/kg/h for ≥24 hours

OR

OR

Increase in serum creatinine to ≥4.0 mg/dl (≥353.6 mmol/l)

Anuria for ≥12 hours

OR

Initiation of renal replacement therapy

OR,

In patients <18 years, decrease in eGFR to <35 ml/min per 1.73m2

  1. Adapted from [14]: Improving Global Outcomes (KDIGO) Acute Kidney Injury Work Group. KDIGO Clinical Practice Guideline for Acute Kidney Injury. Section 2: AKI definition. Table 2. Staging of AKI. Kidney International Supplements 2012;2:19. http://www.kdigo.org/clinical_practice_guidelines/pdf/KDIGO%20AKI%20Guideline.pdf.