Comparison of three early biomarkers for acute kidney injury after cardiac surgery under cardiopulmonary bypass.

J Intensive Care · 2016 · PMC4915135 · PMID 27330813

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might not be significantno p-value reported

Although the intrarenal RAAS is activated by CPB, the efficacy of urinary angiotensinogen as a biomarker might not be significant, because the activated intrarenal RAAS is merely one of many factors causing AKI after cardiac surgery.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.