National surgical quality improvement program underestimates the risk associated with mild and moderate postoperative acute kidney injury.
National surgical quality improvement program underestimates the risk associated with mild and moderate postoperative acute kidney injury.
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DOI:
10.1097/ccm.0b013e31829860fc
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发表时间:
2013-11
影响因子:
8.8
通讯作者:
Hobson CE
中科院分区:
文献类型:
--
作者:
Bihorac A;Brennan M;Ozrazgat-Baslanti T;Bozorgmehri S;Efron PA;Moore FA;Segal MS;Hobson CE
In a single-center cohort of surgical patients we assessed the association between postoperative change in serum creatinine (sCr) and adverse outcomes and compared the American College of Surgeons National Surgical Quality Improvement Program (ACS NSQIP)’s definition for acute kidney injury (NSQIP-AKI) with consensus RIFLE (Risk, Injury, Failure, Loss, and End-stage Kidney) and KDIGO (Kidney Disease: Improving Global Outcomes) definitions. Retrospective single center cohort. Academic tertiary medical center. 27,841 adult patients with no previous history of chronic kidney disease undergoing major surgery. RIFLE defines AKI as change in sCr greater than or equal to 50% while KDIGO uses 0.3 mg/dl change from the reference sCr. Since NSQIP defines AKI as sCr change > 2mg/dl, it may underestimate the risk associated with less severe AKI. The optimal discrimination limits (ODL) for both percent and absolute sCr changes were calculated by maximizing sensitivity and specificity along the receiver operating characteristic (ROC) curves for postoperative complications and mortality. Although prevalence of RIFLE-AKI was 37%, only 7% of RIFLE-AKI patients would be diagnosed with AKI using the NSQIP definition. In multivariable logistic models patients with RIFLE or KDIGO-AKI had a 10 times higher odds of dying compared to patients without AKI. The ODLs for change in sCr associated with adverse postoperative outcomes were as low as 0.2 mg/dl while the NSQIP discrimination limit of 2.0 mg/dl had low sensitivity (0.05 – 0.28). Current ACS NSQIP definition underestimates the risk associated with mild and moderate AKI otherwise captured by the consensus RIFLE and KDIGO criteria.