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  • Title: Combined impact of chronic kidney disease and contrast-induced nephropathy on long-term outcomes in patients with ST-segment elevation acute myocardial infarction who undergo primary percutaneous coronary intervention.
    Author: Nakahashi H, Kosuge M, Sakamaki K, Kiyokuni M, Ebina T, Hibi K, Tsukahara K, Iwahashi N, Kuji S, Oba MS, Umemura S, Kimura K.
    Journal: Heart Vessels; 2017 Jan; 32(1):22-29. PubMed ID: 27106917.
    Abstract:
    Contrast-induced nephropathy (CIN) and chronic kidney disease (CKD) are associated with poor outcomes after primary percutaneous coronary intervention (PCI) for acute myocardial infarction (AMI); however, its combined prognostic significance remains unclear. We enrolled 577 patients with AMI undergoing primary PCI within 12 h after symptom onset and measured serum creatinine on admission and the next 3 days. CKD was defined as admission estimated glomerular filtration rate <60 ml/min/1.73 m2, and CIN was defined as creatinine increase ≥0.5 mg/dl or ≥25 % from baseline within the first 72 h. Patients were stratified according to the presence or absence of CKD and CIN. In patients with no CKD and no CIN (n = 244), no CKD but CIN (n = 152), CKD but no CIN (n = 127), and both CKD and CIN (n = 54), the 3-year major adverse cardiovascular events (MACE: a combination of all-cause mortality, nonfatal reinfarction, or heart failure requiring rehospitalization) were 8, 9, 13, and 35 %, respectively (p < 0.001). Multivariate analysis showed that as compared with no CKD and no CIN, hazard ratios (95 % CI) for MACE associated with no CKD but CIN, CKD but no CIN, and both CKD and CIN were 0.91 (0.44-1.84; p = 0.79), 1.11 (0.5-2.23; p = 0.77), and 2.98 (1.48-6.04; p = 0.002), respectively. In patients with AMI undergoing primary PCI, the combination of CKD and CIN is significantly associated with adverse long-term outcomes.
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