نتایج جستجو برای: coronary stent
تعداد نتایج: 218325 فیلتر نتایج به سال:
background: redo coronary artery bypass grafting surgery (cabg) is associated with a higher risk of mortality than the first operation. however, the impact of percutaneous coronary intervention (pci) on the outcome in such patients is currently unclear. we evaluated the in-hospital and six-month clinical outcomes of post-cabg patients who underwent pci in our center. methods: between april 2008...
CONTEXT Although drug-eluting stents reduce restenosis rates relative to bare-metal stents, concerns have been raised that drug-eluting stents may also be associated with an increased risk of stent thrombosis. Our study focused on the effect of stent type on population-based interventional outcomes. OBJECTIVE To compare outcomes of Medicare beneficiaries who underwent nonemergent coronary ste...
Coronary artery aneurysm (CAA) formation is a rare complication after percutaneous coronary intervention (PCI) with stent implantation. Why CAA occurs in these unusual instances is not well understood. Though cases with drug-eluting stent (DES) induced CAA have been reported before, none was reported to be associated with a titanium nitric oxide-coated bioactive stent. Herein, we describe the f...
Recanalization of coronary artery chronic total occlusions is a rapidly developing domain of percutaneous coronary interventions requiring considerable operator expertise. Tackling any aorto-ostial lesion with previously implanted stent that protrudes into aorta presents anatomical and technical challenge significantly reducing procedure success rates and is an obstacle when considering antegra...
OBJECTIVE To investigate the response of very small coronary arteries to stent deployment and balloon angioplasty. SETTING Normal porcine coronary arteries. METHODS 24 pigs underwent intervention to two main coronary arteries, in segments 2.0 mm in diameter, with balloons whose diameter was 2.5 mm at standard pressure. Twelve arteries received a BiodivYsio small vessel (SV) stent; 12 an NIR...
BACKGROUND Intravascular ultrasound (IVUS) can assess stent geometry more accurately than angiography. Several studies have demonstrated that the degree of stent expansion as measured by IVUS directly correlated to clinical outcome. However, it is unclear if routine ultrasound guidance of stent implantation improves clinical outcome as compared with angiographic guidance alone. METHODS AND RE...
A 44-yr-old woman with a drug-eluting coronary stent placement two weeks before surgery suffered a myocardial infarction in the postanesthesia care unit immediately after hysterectomy. She had missed only one dose of aspirin and clopidogrel preoperatively. Early recognition of subacute stent thrombosis and urgent percutaneous coronary intervention probably prevented her death. In this case repo...
Coronary artery aneurysm is a relatively uncommon disorder characterized by coronary artery dilatation with diameter that exceeds 50% of the normal adjacent segments with atherosclerosis being the most common etiology. Aneurysms can be adjacent to a stenosis in a post- or prestenotic location. Both anatomical conditions are technically challenging regarding their percutaneous treatment because ...
OBJECTIVES We aimed to evaluate the risk of definite stent thrombosis with bare-metal stents (BMS) and drug-eluting stents (DES) in patients treated for acute coronary syndromes. BACKGROUND Acute coronary syndromes (ACS) have been reported as increasing the risk for stent thrombosis. METHODS Between January 2000 and December 2005, 5,816 consecutive patients underwent percutaneous coronary i...
Percutaneous transluminal coronary angioplasty with metal stent placement has become a well-developed treatment modality for coronary stenotic lesions. Although infection involving implanted stents is rare, it can, however, occur with high morbidity and mortality. We describe herein a case of an inserted coronary stent that was infected and complicated with recurrent stent thrombosis, pseudoane...
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