International journal of cardiology
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The association between contrast-induced acute kidney injury (CI-AKI) and chronic kidney disease (CKD) in patients with acute coronary syndrome (ACS) treated with percutaneous coronary intervention (PCI) has not been fully reported. We evaluated the association of CI-AKI on cardiovascular events in ACS patients with CKD. ⋯ CI-AKI was revealed to be a significant incremental predictor of cardiovascular events at each stage of CKD in ACS patients.