[Acute kidney injury and renal replacement therapy in victims from out-of-hospital cardiac arrest with administration of contrast agent].

Background: Early coronary angiography and computed tomography are recommended in survivors of out-of-hospital cardiac arrest (OHCA). However, both techniques require iodinated contrast agent although the effects on incident acute kidney injury are unknown. The aim of this study was to explore the incidence of acute kidney injuries (AKI) and need for renal replacement therapy (RRT) in patients after nontraumatic OHCA with special regard to the administration of contrast agent during the early in-hospital diagnostic workup.

Materials And Methods: Data from all survivors of OHCA admitted to our hospital between 1 January 2008 and 30 June 2015 were retrospectively collected. Incidence of AKI and RRT between the contrast and no contrast groups were compared.

Results: Of 280 OHCA survivors, 133 (47.5 %) received contrast agent (227.0 ± 136.5 ml). Within 72 h after hospital admission, 47 of 129 survivors (36.4 %) developed AKI of any stage, but AKI was more common in patients without early contrast administration than in patients with early contrast administration (54.5 vs. 28.2 %; p = 0.011). Patients who survived until hospital discharge had higher serum creatinine levels at admission than at hospital discharge (1.17 ± 0.37 vs. 0.92 ± 0.35; p < 0.001).

Conclusion: AKI is common in survivors of OHCA, and RRT following OHCA is needed more frequently than in other cardiac disease. Despite elevated serum creatinine levels at admission, we could not show an association between early contrast administration in survivors of OHCA and AKI incidence.