Intermittent Urine Oxygen Tension Monitoring for Predicting Acute Kidney Injury After Cardiovascular Surgery: A Preliminary Prospective Observational Study

Figures

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  Figure 1. Flowchart eGFR: estimated glomerular filtration rate; AKI: acute kidney injury; sCr: serum creatinine * eGFR was calculated by the equation devised by the Japanese Society of Nephrology [23]. ** Definition of stage 1 AKI: sCr, increase of ≥0.3 mg/dL within 48 hours or 1.5 to 1.9 times baseline; or urine output, <0.5 ml/kg/h in 6 to 12 hours

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  Figure 2. The receiver operating characteristic curve for T1, T2, T3, and T4. Time points: T1, immediately after induction of general anesthesia in the operating room; T2, immediately after intensive care unit (ICU) admission; T3, 6 hours after ICU admission; T4, 12 hours after ICU admission. AUC: area under the curve