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Table 5 Definition criteria of postoperative acute kidney injury.a

From: European registry of type A aortic dissection (ERTAAD) - rationale, design and definition criteria

Stages Serum creatinine
1 1.5–1.9 times baseline
OR
≥0.3 mg/dL (≥26.5 micromol/L) increase
2 2–2.9 times baseline
3 ≥3.0 times baseline
OR
Increase to ≥4 mg/dL (≥353.6 micromol/L)
OR
Initiation of renal replacement therapy
  1. aChanges in serum creatinine level occurring during the index hospitalization