The Japanese Journal of Clinical Dialysis Vol.29 No.11(2-1)

Theme Current trends and issues for medical management of acute kidney injury in Japan
Title Definition and staging of AKI
Publish Date 2013/10
Author Kazu Hamada Department of Endocrinology, Metabolism and Nephrology, Kochi University School of Medicine
Author Tatsuki Matsumoto Department of Endocrinology, Metabolism and Nephrology, Kochi University School of Medicine
Author Taro Horino Department of Endocrinology, Metabolism and Nephrology, Kochi University School of Medicine
Author Yoshio Terada Department of Endocrinology, Metabolism and Nephrology, Kochi University School of Medicine
[ Summary ] In March 2012, the outlines known as : KDIGO (Kidney Disease : Improving Global Outcomes) revised the definition of AKI (acute kidney injury) and created the AKI guidelines which summarized RIFLE (Risk, Injury, Failure, Loss, End-stage kidney disease) and AKIN (Acute Kidney Injury Network) classifications. The pivotal points of this guideline are described as the follows : AKI is defined as an increase of more than 0.3 mg/dL in serum creatinine (Cr) levels within 48 hours, the same as the AKIN classification. Furthermore this definition included an increase of more than 1.5 times in serum Cr within 7 days of RIFLE classification. The history of the definition of AKI and the modified KDIGO guidelines are outlined.
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