Problems of diagnostics acute kidney injury in patients with ST-segment elevation acute myocardial infarction

The purpose of this study was to examine the incidence of the acute kidney injury (AKI), defined by the KDIGO Clinical Practice Guideline in patients with ST-segment elevation acute myocardial infarction, undergoing pharmacological reperfusion. According to KDIGO criteria, 64 (26 %) patients had AKI detected by basal serum creatinine, 59 (24 %) by serum creatinine shift from 1 to 3 hospital days and 84 (34 %) by urine output. AKI defined by urine output criteria was associated with inhospital mortality. In patients with AKI detected by basal serum creatinine, is unclear which is the cause of renal dysfunction: AKI or chronic kidney disease. The authors propose the term "first diagnosed kidney injury" to describe patients with impaired renal function observed for the first time.