نتایج جستجو برای: angioplasty stents coronary restenosis echocardiography
تعداد نتایج: 249366 فیلتر نتایج به سال:
Background. Several studies suggest that repeated percutaneous transluminal coronary angioplasty procedures at the same site are associated with a progressively increasing risk of further restenosis and that short time intervals between successive procedures are predictive of future restenoses. Methods and Results. We assessed by quantitative coronary angiography the angiographic probability of...
In the early 1970s, coronary artery bypass graft (CABG) was found to improve late survival in comparison to medical therapy in patients with significant left main stenosis.1–3 Once CABG became the standard of care for left main disease, a distinction between “protected”—by at least 1 patent bypass graft to the left coronary artery—and “unprotected left main (UPLM)”— no patent bypass graft to th...
OBJECTIVE With the increased use of intracoronary stents, in-stent restenosis has become a clinically significant drawback in invasive cardiology. We retrospectively assessed the short- and long-term outcomes after excimer laser coronary angioplasty of in-stent restenosis. METHODS Twenty-five patients with 33 incidents of in-stent restenosis treated with excimer laser coronary angioplasty (EL...
Restenosis after coronary interventions was referred to as the “soft underbelly” of angioplasty by Richard Myler, MD, 30 years ago. However, restenosis was not demonstrated to be significantly related to a safety risk but was rather an “inconvenient truth,” which was reflected primarily by disruption of the patient’s schedule and increased costs. For the operator it provided an opportunity to p...
Stents were initially used to manage or prevent acute vessel closure after percutaneous transluminal coronary angioplasty (PTCA). The first direct randomized comparison with respect to restenosis showed the superiority of stenting to PTCA for de novo lesions situated in native vessels 3 mm or larger (1,2). In these trials, stenting was associated with a 25% to 30% reduction of restenosis as com...
In 1977, a major breakthrough in cardiovascular medicine was introduced by Dr. Andreas Gruentzig. In September of that year, Gruentzig performed the very first percutaneous transluminal coronary angioplasty (PTCA) procedure in a human. Twenty-three years later, the coronary artery was still patent. [1] Despite the initial enthusiasm, some complications were clearly associated with the procedure...
OBJECTIVES This study evaluated safety and efficacy of excimer laser angioplasty for treatment of restenosed or occluded coronary stents. BACKGROUND Balloon angioplasty of in-stent restenosis is limited by a high recurrence rate. Debulking by laser angioplasty is a novel concept to treat in-stent restenosis. METHODS A total of 440 patients with restenoses or occlusions in 527 stents were en...
Treating multivessel disease in the era of coated stents: introduction N umerous reports in cardiology congresses and journals deal with multivessel treatment with percutaneous transluminal coronary angioplasty (PTCA) and stenting. Clinical practice, however, is very different with more than 90% of all percutaneous revascularisation procedures in Europe and the USA limited to single vessel trea...
B alloon angioplasty, arguably cardiology's most important advance of the decade past, now suffers from what we will call the 5-45-50 problem: 5% acute closure,' 45% restenosis,2,3 and 50% unsuitable coronary anatomy. We are now beginning to see the first publications describing multicenter experiences with three types of devicesatherectomy, lasers, and stents-originally designed to reduce the ...
INTRODUCTION AND OBJECTIVES Antiproliferative drug-coated stents are a possible solution for post-angioplasty coronary restenosis. Here we analyze their efficacy, effectiveness and safety, and estimate the economic impact of their use in Spain. MATERIAL AND METHOD Systematic review (meta-analysis) of the scientific evidence available up to January 2004, and analysis of hospital costs within a...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید