Acute kidney injury after coronary artery bypass grafting: assessment using RIFLE and AKIN criteria.
OBJECTIVE
To compare the RIFLE (Risk, Injury, Failure, Loss and End-stage Renal Failure) and AKIN (Acute Kidney Injury Network) criteria for diagnosis of acute kidney injury after coronary artery bypass grafting.


METHODS
Retrospective cohort. 169 patients who underwent coronary artery bypass grafting from January 2007 through December 2008 were analyzed. Information was entered into a database and analyzed using STATA 9.0.


RESULTS
Patients' mean age was 63.43 1 9.01 years old. Predominantly male patients (66.86%) were studied. Acute Kidney Injury was present in 33.14% by AKIN and in 29.59% by RIFLE. Hemodialysis was required by 3.57% and 4.0% of the patients when AKIN and RIFLE were applied respectively. There was 4.0% and 3.57% mortality of patients with Acute Kidney Injury according to the RIFLE and AKIN criteria, respectively. In 88.76% of the cases, there was good agreement between the two methods in the detection (kappa=0.7380) and stratification (kappa=0.7515) of Acute Kidney Injury.


CONCLUSIONS
This study showed that the RIFLE and AKIN criteria have a good agreement in the detection and stratification of acute kidney injury after coronary artery bypass grafting.
Cardiac Surgery Unit at University Hospital of Maranhão, São Luís, MA, Brazil. rvnina@terra.com.br
Vinicius José da Silva
VJ
Nina
Maryanne Miranda
MM
Matias
Dyego José de Araújo
DJ
Brito
José Albuquerque de
JA
Figueiredo Neto
Léa Barroso
LB
Coutinho
Rayssa Fiterman
RF
Rodrigues
Vinícius Giuliano Gonçalves
VG
Mendes
Shirlyne Fabianni Dias
SF
Gaspar
D058186:Acute Kidney Injury / Q000175:diagnosis* / Q000209:etiology; D000368:Aged; D001026:Coronary Artery Bypass / Q000009:adverse effects*; D003404:Creatinine / Q000097:blood; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000175:diagnosis; D011237:Predictive Value of Tests; D011379:Prognosis; D006435:Renal Dialysis; D018570:Risk Assessment; D012307:Risk Factors; D016896:Treatment Outcome
D003404:Creatinine