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Circulation Journal
Vol. 75 (2011) No. 12 p. 2798-2804

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http://doi.org/10.1253/circj.CJ-11-0586

Cardiovascular Intervention

Background: Patients with chronic kidney disease have had conflicting results between drug-eluting stents (DES) and bare-metal stents (BMS). The aim of the present study was to determine whether DES is preferable for the treatment of acute myocardial infarction (AMI) with renal insufficiency, and to elucidate the impact of diabetes mellitus (DM) on outcomes of each stent. Methods and Results: As a part of the Korea Acute Myocardial Infarction Registry (KAMIR), 2,175 AMI patients with renal insufficiency (glomerular filtration rate <60ml/min) comprising 208 patients with BMS and 1,967 DES implantation were selected. Primary outcome was major adverse cardiac event (MACE), defined as a composite of mortality, nonfatal myocardial infarction, and target lesion revascularization. In the overall population, the MACE rate at 1 year was significantly higher in the BMS group than that of DES (44% vs. 26%, P<0.05), which was mainly due to death rather than repeat intervention (44% vs. 26%, P<0.05). In the diabetic group with DES implantation, the MACE rate was higher compared with the DES group without DM, mainly due to repeat intervention (5% vs. 8%, P<0.05). Conclusions: In AMI patients with renal insufficiency, DES implantation exhibits a favorable 1-year clinical outcome than BMS implantation, and subgroup analysis for diabetic subjects showed worse outcomes in the DM group with implanted DES. (Circ J 2011; 75: 2798-2804)

Copyright © 2011 THE JAPANESE CIRCULATION SOCIETY

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