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  • Title: Influence of diabetes mellitus on clinical outcomes following primary percutaneous coronary intervention in patients with ST-segment elevation myocardial infarction.
    Author: Jensen LO, Maeng M, Thayssen P, Tilsted HH, Terkelsen CJ, Kaltoft A, Lassen JF, Hansen KN, Ravkilde J, Christiansen EH, Madsen M, Sørensen HT, Thuesen L.
    Journal: Am J Cardiol; 2012 Mar 01; 109(5):629-35. PubMed ID: 22152969.
    Abstract:
    Patients with diabetes mellitus (DM) have a worse outcome after percutaneous coronary intervention (PCI) than nondiabetic patients. The purpose of this study was to compare rates of stent thrombosis, myocardial infarction (MI), target lesion revascularization (TLR), and death in diabetic and nondiabetic patients treated with primary PCI for ST-segment elevation MI (STEMI) in Western Denmark. From January 2002 through June 2005, 3,655 consecutive patients with STEMI treated with primary PCI and stent implantation (316 patients with DM, 8.6%; 3,339 patients without DM, 91.4%) were recorded in the Western Denmark Heart Registry. All patients were followed for 3 years. Cox regression analysis was used to compute hazard ratios (HRs), controlling for potential confounding. Three-year rates of definite stent thrombosis were 1.6% in the DM group and 1.5% in the non-DM group (adjusted HR 1.15, 95% confidence interval [CI] 0.50 to 2.67). The rate of MI was 12.3% in the DM group versus 5.6% in the non-DM group (adjusted HR 2.56, 95% CI 1.81 to 3.61). Rates of TLR were 12.1% in the DM group and 8.7% in the non-DM group (adjusted HR 1.55, 95% CI 1.14 to 2.11). All-cause mortality was 23.7% in patients with DM versus 12.7% in patients without DM (adjusted HR 2.03, 95% CI 1.59 to 2.59). In conclusion, stent thrombosis rate was similar in patients with and without DM and STEMI treated with primary PCI, whereas the presence of DM increased the risk of MI, TLR, and death.
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