View clinical trials related to Coronary Disease.
Filter by:Collateral growth and coronary angiogenesis are chronic adaptations to myocardial ischemia. Collateralization helps to restore blood flow and as a result salvages myocardium in severely ischemic myocardial regions. Thus, good collateral development in patients with severe coronary artery disease (CAD) improves ventricular function and prognosis (1-3). However, coronary collateral development is different among patients even with similar degrees of coronary artery stenosis. Several factors, such as diabetes mellitus (4) and duration of myocardial ischemic symptoms (5) have been reported to effect coronary collateral development. At the cellular level, inflammatory cells, especially monocytes have an important role in collateralization. In a series of experimental studies with animals, it has been shown that monocytes are important elements for development of collateral vessels (6-7). In a recent study, it has been demonstrated that increased circulating monocyte count is related to good collateral development in patients with stable coronary artery disease (8). Monocytes in human blood are heterogeneous and can be classified into two subsets according to the presence or absence of the FcγRIII receptor CD16 (9): CD14++CD16- monocytes characterized by high level expression of the CD14 cell surface receptor but no expression of CD16 receptor, and CD14+CD16+ monocytes characterized by the co-expression of CD16 receptor with either high or low level expression of the CD14 receptor. These subsets differ in function and response to several cytokines. Our aim in this study was to find out any possible relationship between the levels of circulating monocyte subsets and coronary collateral development.
Enhanced external counterpulsation (EECP) is a noninvasive circulatory assist device that has been as a treatment option for refractory angina in left ventricular (LV) dysfunction. Recently, its potential role in heart failure management has been shown. However, although the concept of EECP was introduced almost four decades ago, and despite growing evidence supporting the clinical benefit and safety of this therapeutic modality, little is firmly established regarding the mechanisms responsible for the benefit of EECP include improvement in endothelial function, promotion of coronary collateralization, enhancement of ventricular function, and peripheral effects. Therefore, the major aim of this study is to provide an alternative treatment, EECP, for those unsuitable for standard procedures, especially for patients whose heart failure was caused by repeated myocardial infarction, called ischemic cardiomyopathy (ICMP), and to evaluate the clinical outcome and the endothelial function before and after 35 hours of EECP treatment.
The objective of this study is to evaluate effectiveness and safety of everolimus-eluting stents (XIENCE, Abbott) in the "real world" daily practice as compared with first-generation drug-eluting stents (sirolimus-eluting stents).
This study is a non-randomized, prospective, open-label registry to compare the efficacy and safety of Promus Element stents versus first-generation drug-eluting stent (DES) in patients with coronary artery disease.
The objective of this study is to evaluate effectiveness and safety of BioMatrix stent in the "real world" daily practice as compared with first-generation drug-eluting stents (sirolimus- or paclitaxel-eluting stents).
This study is an open label, multi-center, randomized trial, which is designed to evaluate the efficacy and safety of clopidogrel derivative (Pregrel®) therapy for 12 months in patients undergoing PCI compared to conventional clopidogrel (Plavix®).
The purpose of this study is to determine whether oral sodium nitrate administration prior to coronary artery bypass surgery can reduce perioperative levels of troponin T. In addition, plasma and urine surrogate markers of renal, hepatic and brain injury will be monitored.
The objective of this study is to evaluate effectiveness and safety of XIENCE PRIME stent in the "real world" daily practice as compared with other drug eluting stents (DESs)
The objective of this study is to evaluate effectiveness and safety of GENOUS EPC-coated stent in patients with STEMI with other drug-eluting stents (DESs).
This study is a multicenter, open label, prospective, single arm trial Single arm group; following angiography, eligible patients with unprotected LMCA stenosis >50% by visual estimation, which is equally treatable by the both treatment strategy (EES stenting or CABG), will be treated with EES