نتایج جستجو برای: coronary vessel
تعداد نتایج: 268718 فیلتر نتایج به سال:
Coronary magnetic resonance angiography (CMRA) allows a noninvasive assessment of the coronary anatomy without exposing the patients to radiation. It is also superior to coronary computed tomography angiography (CCTA) for the evaluation of luminal narrowing in heavily calcified coronary segments. We report a case with triple-vessel disease, but it could not be accurately assessed by CCTA becaus...
Among 12,720 patients subjected to coronary angiography because of clinical suspicion of coronary heart disease, 2,234 (78% men and 22% women) were free from major modifiable coronary risk factors. They did not report alcohol consumption, use of antiplatelet or lipid lowering agents, oral contraceptives or sex hormones; there was no history of bilateral oophorectomy, smoking, diabetes mellitus,...
BACKGROUND Coronary remodeling plays a significant role in lumen loss in transplant allograft vasculopathy (TxCAD), but the determinants of remodeling are unknown. We assessed the relationship between remodeling and plaque topography, coronary compliance, and blood flow in TxCAD. METHODS AND RESULTS One artery in each of 27 transplant patients was investigated with simultaneous intravascular ...
D rug-eluting stents (DES) minimized the occurrence of in-stent restenosis but with a penalty of increased risk of late stent thrombosis. 1 In patients with late stent thrombosis, adverse vessel wall reactions such as uncovered and malap-posed stent struts, coronary aneurysms, and accelerated neo-atherosclerosis 2 have been identified. The stent polymer is suspected to induce an inflammatory re...
INTRODUCTION Coronary artery fistula consists of abnormal congenital connections between a coronary artery and cardiac chambers, a coronary vessel or an intrathoracic vessel that can be complicated by intracardiac shunts, endocarditis, myocardial infarction, or coronary aneurysms. Recent reports have emphasized the efficacy of percutaneous transcatheter techniques as an alternative to surgical ...
The relation between lipoprotein(a) [Lp(a)] as an independent risk factor for coronary atherosclerosis and the severity and extension of angiographically detectable coronary atherosclerotic lesions has not been systematically evaluated. In 118 male patients (54.3 +/- 7.4 years) with suspected coronary artery disease and without a history of myocardial infarction undergoing coronary angiography,...
Percutaneous transluminal coronary angioplasty (PTCA) is a novel procedure to Barbadian healthcare. Only one centre in Barbados provides PTCA and stenting. This is a retrospective study aimed at describing the initial results of coronary angioplasty and stenting in the first 48 patients at the Carib-American Heart Centre and exploring the feasibility and safety of coronary angioplasty and stent...
BACKGROUND Recent studies have demonstrated that complement C1q tumor necrosis factor related proteins (CTRPs) have diverse biological influences on the cardiovascular system. CTRP 3 is a member of the CTRP superfamily, which may play a pivotal role in the pathogenesis of coronary artery disease (CAD). Here, we investigated whether serum levels of CTRP 3 are associated with the prevalence and t...
In many computational fluid dynamics (CFD) studies of stented vessel haemodynamics, the geometry of the stented vessel is described using non-deformed (NDF) geometrical models. These NDF models neglect complex physical features, such as stent and vessel deformation, which may have a major impact on the haemodynamic environment in stented coronary arteries. In this study, CFD analyses were carri...
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