Circulation. Cardiovascular interventions
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Circ Cardiovasc Interv · Aug 2013
Adoption of transradial percutaneous coronary intervention and outcomes according to center radial volume in the Veterans Affairs Healthcare system: insights from the Veterans Affairs clinical assessment, reporting, and tracking (CART) program.
Studies examining the association between radial approach and post-percutaneous coronary intervention (PCI) bleeding and mortality have reached conflicting conclusions. There are no current data about the use and outcomes of transradial PCI (r-PCI) in the Veterans Affairs system. ⋯ Within the Veterans Affairs, the use of r-PCI increased over time. r-PCI may be associated with a significant decreased risk of post-PCI blood transfusion among higher volume r-PCI sites. These data demonstrate that potential benefits of r-PCI in terms of reduced post-PCI blood transfusions may be more pronounced at sites that routinely use radial access.
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Circ Cardiovasc Interv · Aug 2013
Comparative StudyOutcomes with various drug-eluting or bare metal stents in patients with ST-segment-elevation myocardial infarction: a mixed treatment comparison analysis of trial level data from 34 068 patient-years of follow-up from randomized trials.
The efficacy and safety of drug-eluting stents (DES) in patients with ST-segment-elevation myocardial infarction (STEMI) is controversial. Consequently, DES implantation has a class IIa indication in the American College of Cardiology/American Heart Association and the European Society of Cardiology STEMI guidelines. ⋯ In patients with STEMI, DES versus BMS was associated with substantial decrease in the risk of target vessel revascularization without compromising safety. EES had the added advantage of substantial reduction in the risk of stent thrombosis when compared with first-generation DES and BMS with no increase in very late stent thrombosis.
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Circ Cardiovasc Interv · Aug 2013
Comparative StudyComparison of bivalirudin and radial access across a spectrum of preprocedural risk of bleeding in percutaneous coronary intervention: analysis from the national cardiovascular data registry.
Bleeding is a common, noncardiac, preventable complication of percutaneous coronary intervention. We compared the relative safety of radial access and bivalirudin in percutaneous coronary intervention. ⋯ In this observational analysis, the combination of bivalirudin and radial access was associated with reduced bleeding event rate. This benefit was present across the entire spectrum of preprocedural risk of bleeding, with or without exposure to IIb/IIIa inhibitors. These data support an adequately powered randomized trial comparing bleeding avoidance strategies.
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Circ Cardiovasc Interv · Aug 2013
Bypassing the emergency department and time to reperfusion in patients with prehospital ST-segment-elevation: findings from the reperfusion in acute myocardial infarction in Carolina Emergency Departments project.
Among patients identified prehospital with ST-segment-elevation myocardial infarction, emergency medical service transport from the field directly to the catheterization laboratory, thereby bypassing the emergency department (ED), may shorten time to reperfusion. ⋯ Among patients identified prehospital with ST-segment-elevation myocardial infarction and transported directly to a percutaneous coronary intervention hospital, only 1 in 2 achieve device activation within 90 minutes. A median of 30 minutes is spent in the ED, contributing significantly to the failure to achieve timely reperfusion. The strategy to bypass the ED is used infrequently and represents a potential opportunity to improve reperfusion times.
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Circ Cardiovasc Interv · Aug 2013
Effects of endothelial dysfunction on residual platelet aggregability after dual antiplatelet therapy with aspirin and clopidogrel in patients with stable coronary artery disease.
Dual antiplatelet therapy with aspirin and clopidogrel is widely used in patients with coronary stents. High residual platelet reactivity (high RPR) after dual antiplatelet therapy is associated with increased cardiovascular events. Endothelial function could affect platelet reactivity in vivo. We hypothesized that endothelial dysfunction could be associated with high RPR after dual antiplatelet therapy in patients with stable coronary artery disease. ⋯ http://www.umin.ac.jp/ctr. Unique identifier: UMIN000008239.