Comparison of rifle, akin and kdigo classes in patients with cardiac surgery

İntroduction: Acute Kidney Injury after cardiac surgery is common and has serious effects on postoperative early and late outcomes. In this study, it was aimed to determine of the using RIFLE, AKIN, and KDIGO diagnostic classifications for acute renal injury incidence and the relationship between the incidence of acute renal injury and mortality, and the comparison of these three classifications. Methods: Patients who underwent cardiovascular surgery under CPB between 01.01.2011 and 31.12.2015 at Manisa Celal Bayar University Medical Faculty Cardiovascular Surgery Clinic were examined retrospectively and 353 patients from 402 patients were included in the study. Preoperative demographic information, operation type, hemoglobin, hematocrit levels, and creatinine values of each patient were recorded. RIFLE, KDIGO and AKIN score were determined daily using serum creatinine value and urine output in the postoperative period. ROC analysis and Logistic regression analysis were used in the evaluation of the data. Results: According to the KDIGO, AKIN classification and RIFLE classification of the research group respectıvely were found to be 28.6%, 29.4% in any AKI stage. According to RIFLE, AKIN and KDIGO classifications in our study, there was a significant relationship between the development of renal injury and advanced age, combined CABG and valve surgeon, long pump duration, low preoperative hemoglobin level, high baseline creatinine value, high perioperative blood transfusion and long term intensive care unit. The area under the receiver operating characteristic curve for hospital mortality was similarly found to be 0.956, 0.957, 0.956 for the RIFLE, AKIN and KDIGO classifications respectively. Conclusion: In our study, there was no significant difference in mortality estimation between RIFLE, AKIN and KDIGO classifications. Key words: Acute renal injury, Cardiac surgery, Hospital mortality