A comparison of different diagnostic criteria of acute kidney injury in cardiac surgery patients
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Abstract
Objective: To compare of three diagnostic criteria of acute kidney injury (AKI), included KDIGO, RIFLE and AKIN, for patients with cardiac surgery. Subject and method: A descriptive study on 247 patients underwent cardiac surgery with cardiopulmonary bypass in the 108 Military Central Hospital from January 2015 to September 2017. Serum creatinine (sCr) was measured at the following times: Arrival in ICU (T0), 12 hours (T1), 24 hours (T2), and 48 hours (T3) after to evaluate the incidence and severity of AKI according to three criteria (KDIGO, RIFLE and AKIN). Result: The incidence of AKI was 48.5% based on KDIGO, higher than that of RIFLE (39.6%) and AKIN (46.9%). The severity of AKI according to KDIGO I, II, III was 67.3%, 24.4% and 8.1% respectively; RIFLE R, I, F was 67.3%, 24.5%, and 8.1%; and AKIN I, II, III was 76.7%, 16.3% and 6.9% respectively. AKI patients had higher mortality (7.5% vs. 1.57%) and longer ICU and post-operative stays than non-AKI ones. Conclusion: KDIGO had better sensitivity for detect AKI than RIFLE and AKIN. AKI led to higher mortality, longer ICU and hospital stays after surgery.
Keywords: Acute kidney injury, cardiac surgery, diagnostic criteria.
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References
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