t Kidney injury (CKD), Coronary procedures

Full list of author information is available at the end of the articleBackground Contrast-induced acute kidney injury (CI-AKI) is one of the most common complications in patients who receive intravenous contrast media [1-4]. The incidence of CI-AKI is low 1–2 % in patients with normal renal function even with underlying diabetes mellitus [1] but increases up to 25 % in patients with certified risk factors, for instance the combination of chronic kidney disease (CKD) and diabetes, congestive heart failure, advanced age, and concurrent use of nephrotoxic drugs [4] with raising the morbidity and mortality [5]. CI-AKI requiring dialysis occurs in 3-4 % of patients with underlying CKD undergoing coronary procedures [6,7] and CI-AKI in CKD patients contributes to extended hospitalizations and increases long-term morbidity and mortality [8]. CI-AKI is defined as an acute deterioration in renal func-tion after intravenous administration of contrast media by an absolute increase in serum creatinine (SCr) ≥ 0.5 mg/d