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The objective this study is evaluate the performance and safety of Chronus® cobalt-chromium coronary stent in patients with "de novo" native coronary artery lesions treated with 19-mm-long stents in long-term 9 months.
The use of coronary stents has optimized the results of coronary balloon angioplasty for two reasons:
1. reduced acute complications, such as acute and subacute occlusion, as well as the need of urgent myocardial revascularization;
2. reduced coronary restenosis. STRESS and BENESTENT 1 pivotal clinical trials7,9 laid the foundations for approval and confirmation of the efficacy of coronary stents. These studies showed a reduction in the binary angiographic restenosis rates from 42.1% to 31.6% (p<0.05) and from 32% to 22% (p=0.02), respectively. The efficacy of coronary stents is due to the fact that these devices reduce the acute elastic recoil and late negative remodeling of coronary arteries because of their capacity to maintain the vessel adequately open without reducing vessel diameter.
Cronus® stent is fabricated in cobalt-chromium. This alloy is currently used cardiovascular stents and permanent implants in orthopedic (hips, knees), dental and maxillofacial surgeries. Guidant and Medtronic have conducted clinical evaluations of stents fabricated with a similar cobalt-chromium alloy and demonstrated safety and efficacy of the investigational devices. Both stents are currently available in the European market.
Allocation: Non-Randomized, Control: Active Control, Endpoint Classification: Safety Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
Coronary Artery Disease
Cronus® - Cobalt Chromium Coronary Stent (Angioplasty)
Instituto de Cardiologia do Espírito Santo
Not yet recruiting
Scitech Produtos Medicos Ltda
Published on BioPortfolio: 2014-08-27T03:15:04-0400
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Use of a balloon catheter for dilatation of an occluded artery. It is used in treatment of arterial occlusive diseases, including renal artery stenosis and arterial occlusions in the leg. For the specific technique of balloon dilatation in coronary arteries, ANGIOPLASTY, TRANSLUMINAL, PERCUTANEOUS CORONARY is available.
A family of percutaneous techniques that are used to manage CORONARY OCCLUSION, including standard balloon angioplasty (PERCUTANEOUS TRANSLUMINAL CORONARY ANGIOPLASTY), the placement of intracoronary STENTS, and atheroablative technologies (e.g., ATHERECTOMY; ENDARTERECTOMY; THROMBECTOMY; PERCUTANEOUS TRANSLUMINAL LASER ANGIOPLASTY). PTCA was the dominant form of PCI, before the widespread use of stenting.
Surgical therapy of ischemic coronary artery disease achieved by grafting a section of saphenous vein, internal mammary artery, or other substitute between the aorta and the obstructed coronary artery distal to the obstructive lesion.
Dilatation of an occluded coronary artery (or arteries) by means of a balloon catheter to restore myocardial blood supply.
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