['Contrast-induced acute kidney injury (CI-AKI) is a common complication in patients with acute ST-elevation myocardial infarction (STEMI) undergoing primary percutaneous coronary intervention (PCI). The Mehran risk score was defined originally in elective PCI and may be predictive of CI-AKI. The aim of the present study was to investigate whether the Zwolle score predicts CI-AKI in patients with acute STEMI undergoing primary PCI.', 'We analyzed the data of 314 consecutive patients (mean age 56.3\u2009±\u200911.4 years) with acute STEMI undergoing primary PCI. The study population was divided into two groups according to CI-AKI development. The Mehran score, Zwolle score, baseline characteristics, and in-hospital outcomes were recorded.', 'Patients with CI-AKI had higher Mehran and Zwolle scores. In a receiver operating characteristic (ROC) curve analysis, high area under the curve (AUC) values were determined for Zwolle and Mehran scores (0.85 and 0.79, respectively) for CI-AKI development. A Zwolle score greater than \u20092 predicted CI-AKI with a sensitivity of 76.3\u2009% and a specificity of 75.4\u2009%. A Mehran score greater than 5 predicted CI-AKI with a sensitivity of 71.1\u2009% and a specificity of 73.6\u2009%.'] Does zwolle risk score predict contrast-induced acute kidney injury in STEMI patients undergoing PCI?