4.5 Article

Acute kidney injury after cardiac surgery according to Risk/Injury/Failure/Loss/End-stage, Acute Kidney Injury Network, and Kidney Disease: Improving Global Outcomes classifications

期刊

JOURNAL OF CRITICAL CARE
卷 28, 期 4, 页码 389-396

出版社

W B SAUNDERS CO-ELSEVIER INC
DOI: 10.1016/j.jcrc.2012.12.008

关键词

Acute kidney injury; Cardiac surgery; Renal replacement therapy; Intensive care unit; Cardiopulmonary bypass

资金

  1. Dunhill Medical Trust
  2. National Institute for Health Research (NIHR) Respiratory Disease Biomedical Research Unit at Royal Brompton and Harefield NHS Foundation Trust and Imperial College London

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Purpose: The epidemiology of acute kidney injury (AKI) after cardiac surgery depends on the definition used. Our aims were to evaluate the Risk/Injury/Failure/Loss/End-stage (RIFLE) criteria, the AKI Network (AKIN) classification, and the Kidney Disease: Improving Global Outcomes (KDIGO) classification for AKI post-cardiac surgery and to compare the outcome of patients on renal replacement therapy (RRT) with historical data. Methods: Retrospective analysis of 1881 adults who had cardiac surgery between May 2006 and April 2008 and determination of the maximum AKI stage according to the AKIN, RIFLE, and KDIGO classifications. Results: The incidence of AKI using the AKIN and RIFLE criteria was 25.9% and 24.9%, respectively, but individual patients were classified differently. The area under the receiver operating characteristic curve for hospital mortality was significantly higher using the AKIN compared with the RIFLE criteria (0.86 vs 0.78, P =.0009). Incidence and outcome of AKI according to the AKIN and KDIGO classification were identical. The percentage of patients who received RRT was 6.2% compared with 2.7% in 1989 to 1990. The associated hospital mortality fell from 82.9% in 1989 to 1990 to 15.6% in 2006 to 2008. Conclusions: The AKIN classification correlated better with mortality than did the RIFLE criteria. Mortality of patients needing RRT after cardiac surgery has improved significantly during the last 20 years. (C) 2013 Elsevier Inc. All rights reserved.

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