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  • Title: Drug-eluting versus bare-metal stents in large coronary arteries of patients with ST-segment elevation myocardial infarction: findings from the ICAS registry.
    Author: Abe D, Sato A, Hoshi T, Maruta S, Misaki M, Kakefuda Y, Watabe H, Hiraya D, Sakai S, Kawabe M, Takeyasu N, Aonuma K.
    Journal: J Cardiol; 2014 Nov; 64(5):377-83. PubMed ID: 24685689.
    Abstract:
    BACKGROUND AND PURPOSE: There are a few retrospective subgroup analyses or registries of large-vessel (≥ 3.5mm) stenting. We investigated clinical outcomes of patients with ST-segment elevation myocardial infarction (STEMI) undergoing percutaneous coronary intervention (PCI) with drug-eluting stents (DES) and bare-metal stents (BMS) in large coronary vessels. METHODS AND SUBJECTS: Of 1100 STEMI patients registered in the Ibaraki Cardiovascular Assessment Study (ICAS) multicenter registry from April 2007 to June 2012 who underwent PCI, we enrolled 454 patients (65.8 ± 12.7 years old, 81% male) with ≥ 3.5-mm stents. We excluded 53 patients with cardiogenic shock or left main trunk lesions. The remaining 401 patients were divided into Group-D, PCI with DES (n = 184), and Group-B, PCI with BMS (n = 217). Propensity score analysis matched 1:1 according to treatment with DES (n = 101) or with BMS (n = 101). We evaluated major adverse cardiac and cerebrovascular events (MACCE) and incidence of stent thrombosis (ST). MACCE was defined as all-cause death, myocardial infarction (MI), target-vessel revascularization (TVR), or cerebrovascular accident (CVA). ESSENTIAL RESULTS: During a mean follow-up period of 526 days, all-cause death, MI, CVA, MACCE, and ST were not significantly different in Group-D versus Group-B (all-cause death: 4.35% vs. 4.61%, p = 0.90; MI: 0% vs. 0%; CVA: 2.72% vs. 3.23%, p = 0.76; MACCE: 15.2% vs. 20.3%, p = 0.19; and ST: 0.0% vs. 1.38%, p = 0.11). After adjusting for age, insulin use, multivessel disease, intra-aortic balloon pump use, culprit lesions, and estimated glomerular filtration rate <60 ml/min/1.73 m(2), MACCE was not significantly different between the groups (odds ratio: 0.69; 95% CI: 0.40-1.23; p = 0.21). However, TVR was significantly lower in Group-D than Group-B in Kaplan-Meier analysis (p = 0.048) after propensity score matching. PRINCIPAL CONCLUSION: There was no advantage to using a DES in large vessels for preventing a hard endpoint, whereas DES use resulted in a significant reduction in TVR in the patients with STEMI in this registry.
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