NEJM study finds drug-eluting stents more effective than bare-metal stents in heart attack patientsMay 27, 2009Landmark Horizons-AMI study led by NewYork-Presbyterian Hospital and Columbia University Medical Center in collaboration with the Cardiovascular Research Foundation NEW YORK -- NewYork-Presbyterian Hospital and Columbia University Medical Center, together with the Cardiovascular Research Foundation (CRF), announced that its landmark study comparing the safety and efficacy of drug-eluting stents and bare-metal stents was published in the May 7 New England Journal of Medicine. The study, HORIZONS-AMI (Harmonizing Outcomes with RevascularIZatiON and Stents in Acute Myocardial Infarction), showed that in heart attack patients undergoing angioplasty, the use of paclitaxel-eluting stents reduces rates of target lesion revascularization (TLR) and binary angiographic restenosis when compared to the use of bare-metal stents after one year. Additionally, the primary safety measure of major adverse cardiovascular events (MACE), including death, reinfarction, stent thrombosis and stroke established the non-inferiority of drug-eluting stents with respect to safety through one year. The study was led by Dr. Gregg W. Stone, director of cardiovascular research and education in the Center for Interventional Vascular Therapy at NewYork-Presbyterian Hospital/Columbia University Medical Center; and professor of medicine at Columbia University College of Physicians and Surgeons. The research was sponsored and managed by the Cardiovascular Research Foundation with research grant support from Boston Scientific Corporation and The Medicines Company. In the trial, the use of paclitaxel-eluting stents resulted in a significant reduction of ischemia-driven target-lesion revascularization (TLR) at 12 months (4.5% vs. 7.5%). TLR, which was the primary efficacy endpoint of the trial, refers to the rate at which a particular lesion re-narrows following stent implantation severely enough to require either a repeat angioplasty or bypass surgery operation. The use of paclitaxel-eluting stents also resulted in a significant reduction in binary restenosis after 13 months, which is the rate at which the artery re-narrows at least 50 percent following implantation of the stent, and was the secondary efficacy endpoint of the trial. The paclitaxel-eluting stent had a rate of 10.0 percent and the bare-metal stent had a rate of 22.9 percent. "Outcomes from prior registry and randomized trials of drug-eluting stents compared with bare-metal stents in heart attack patients have been conflicting. These results now provide definitive evidence that paclitaxel-eluting stents are superior in efficacy to bare-metal stents and have a comparable safety profile at one year," says Dr. Stone. "The findings from the HORIZONS-AMI trial will have a major impact on how decisions are made regarding drug-eluting and bare-metal stents in the highest-risk patients, those in the early hours of a heart attack. This study removes much of the uncertainty and concern about the efficacy and safety of drug-eluting stents in this clinical setting. Moreover, all of the patients in this trial will be followed long-term to ensure that these favorable results are maintained." The HORIZONS-AMI trial, a prospective, open-label, multicenter, controlled study, enrolled 3,602 heart attack patients at 123 centers in 11 countries, 3,006 of whom were randomized to paclitaxel-eluting stents versus otherwise identical bare-metal stents. New York- Presbyterian Hospital/Columbia University Medical Center |
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| Related Stents Current Events and Stents News Articles Your Own Stem Cells Can Treat Heart Disease The largest national stem cell study for heart disease showed the first evidence that transplanting a potent form of adult stem cells into the heart muscle of subjects with severe angina results in less pain and an improved ability to walk. The transplant subjects also experienced fewer deaths than those who didn't receive stem cells. Vitamin B niacin offers no extra benefit to statin therapy in seniors already diagnosed with CAD The routine prescription of extended-release niacin, a B vitamin (1,500 milligrams daily), in combination with traditional cholesterol-lowering therapy offers no extra benefit in correcting arterial narrowing and diminishing plaque buildup in seniors who already have coronary artery disease, a new vascular imaging study from Johns Hopkins experts shows. Higher carotid arterial stenting rates associated with poorer clinical outcomes Among eligible Medicare beneficiaries, increased use of carotid arterial stenting (CAS) procedures to treat carotid stenosis-the narrowing of the carotid artery-is associated with higher rates of mortality and adverse clinical outcomes, including heart attack and stroke, according to researchers from the University of Pennsylvania School of Medicine. Drug-eluting stents better than bare-metal stents for heart attack patients Late-breaking data from the landmark HORIZONS-AMI clinical trial, presented at the 21st annual Transcatheter Cardiovascular Therapeutics (TCT) scientific symposium, demonstrated that after two years, in heart attack patients, the use of a drug-eluting stent (paclitaxel) was safer and more effective than a bare-metal stent; and that the administration of the anticoagulant medication bivalirudin enhanced safety and efficacy compared to the use of heparin + GPIIb/IIIa inhibitors. SPIRIT IV trial shows everolimus stent sets new standard for event-free survival Late-breaking data from SPIRIT IV, a large-scale multi-center study of nearly 4,000 patients in the U.S., shows that an everolimus-eluting stent demonstrated enhanced safety and efficacy in the treatment of de novo native coronary artery lesions when compared to a paclitaxel-eluting stent, and showed that "low late loss" may be achieved with drug-eluting stents without sacrificing safety. Drug-eluting stents safe, effective for treatment of chronic total occlusions A multicenter study in Asia found drug-eluting stents effective with a low rate of acute complications in patients with chronic total occlusions (CTOs) undergoing PCI. Results of the study will be presented at the 21st annual Transcatheter Cardiovascular Therapeutics (TCT) scientific symposium, sponsored by the Cardiovascular Research Foundation (CRF). Researchers find drug-eluting stents safe, effective for PCI in diabetics Results of a multicenter study in Asia, demonstrating that drug-eluting stents are effective with a low rate of complications in diabetic patients, will be presented at the 21st annual Transcatheter Cardiovascular Therapeutics (TCT) scientific symposium, sponsored by the Cardiovascular Research Foundation (CRF). New type of sirolimus-eluting stent demonstrates superior results A new type of sirolimus-eluting stent (SES) successfully showed significantly greater neointimal suppression than the paclitaxel-eluting stent (PES) with greater vessel wall integrity surrounding the stent, confirming the finding of superiority of the SES over the PES stent for the trial's primary endpoint of in-stent late loss. Laser processes promise better artificial joints, arterial stents Researchers are developing technologies that use lasers to create arterial stents and longer-lasting medical implants that could be manufactured 10 times faster and also less expensively than is now possible. Stent for life initiative Primary angioplasty (with stent implantation) is the most effective therapy for acute myocardial infarction (AMI), but it is not available to many patients, even though most European countries have sufficient resources (ie, catheterisation laboratories) for its wider use. More Stents Current Events and Stents News Articles |
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