Fluid Balance, Change in Serum Creatinine and Urine Output as Markers of Acute Kidney Injury Post Cardiac Surgery: An Observational Study

Acute kidney injury (AKI) is defined as oliguria or rise in serum creatinine but oliguria alone as a diagnostic criterion may over-diagnose AKI.Given the association between fluid overload and AKI, we aimed to determine if positive fluid balance can complement the known parameters in assessing outcomes of AKI.Prospective observational study.Teaching hospital in Vancouver, Canada.111 consecutive patients undergoing elective cardiac surgery from...