Routine iso-osmolar contrast media use and acute kidney injury following percutaneous coronary intervention for ST elevation myocardial infarction.

Background: Temporal changes in contrast-induced acute kidney injury (CI-AKI) incidence following primary percutaneous coronary intervention (PPCI) are poorly defined. Additionally, the benefits of iso-osmolar contrast media (IOCM) compared to low osmolar CM (LOCM) are uncertain.

Methods: Using data from a regional PPCI service, temporal changes in baseline risk and annual incidence of CI-AKI were studied.