View clinical trials related to Coronary Artery Disease.
Filter by:The purpose of this study is to develop new approaches for screening astronauts for cardiovascular risk during deep space missions.
The aim of this study is to determine the effects of omega 3 supplementation and its concurrent supplementation with vitamin E on the serum levels of antioxidant enzymes and the expressions of the PGC-1a, h TERT, FOXO1, FOXO3a , SIRT1,SIRT3, SIRT6 genes in PBMC cells in the patients with coronary artery disease
After having had a first cardiovascular event, there is a considerable risk of developing a subsequent event. Only recently, a risk prediction model was developed for this group of patients. Imaging techniques such as the coronary artery calcium score and contrast-enhanced computed tomography (CT) of the coronary and carotid arteries could be able to add improve this model. Imaging may further improve the prediction of future manifestations of arterial disease and personalize disease monitoring and treatment.
A computerized registry of cardiovascular disease patients in a large health maintenance organization in Israel. The registry is aimed to be used by health professionals to identify cardiovascular disease patients and to follow the courses of their illnesses and risk factors.
Background: Although selected cardiac surgery can be performed off-pump, the vast majority of cardiac surgical procedures today are performed with the support of cardiopulmonary bypass (CPB). Blood cardioplegia is used to protect the heart during aortic cross-clamping. However, negative effects of myocardial hypoxia during surgery are often aggravated by ischemia/reperfusion injury. In addition, cardiopulmonary bypass leads to an inflammatory response including endothelial cell activation. Comparable to the reperfusion injury following acute myocardial infarction resolved by percutaneous coronary intervention, the microcirculatory impairment observed after cardiac surgery may be caused by endothelin 1 (ET-1). ET-1 is a potent vasoconstrictor peptide upregulated in myocardial ischemia-reperfusion injury. Short-term administration of the selective ETA receptor blocker BQ-123 was found safe in a pilot study including patients with acute myocardial infarction. Hypothesis: Acute local ETA receptor blockade by intracoronary administered BQ-123 reduces myocardial injury. Methods: BQ-123 will be administered in patients undergoing on-pump aorto-coronary bypass grafting to the left anterior descending coronary artery with the use a left inner mammary artery graft and at least one vein graft. Subjects will be randomized to receive the endothelin-A receptor blocker BQ-123 or placebo administered intracoronarily in combination with cardioplegia in a double-blind manner. The primary endpoint will be enzymatic infarct size. Clinical perspective: The implementation of BQ-123 as an add-on pharmacologic therapy in cardiac surgery performed with the use of cardiopulmonary bypass could lead to improved tissue reperfusion and reduced ischemia/reperfusion injury, potentially impacting clinical long-term outcome.
Background Prompt reperfusion with percutaneous coronary intervention (PCI) in the setting of ST-elevation myocardial infarction (STEMI) improves clinical outcomes through salvage of myocardial tissue. Although the use of thrombus aspiration with PCI can result in improved rates of normal epicardial flow and myocardial perfusion, several unmet needs remain. Purpose The purpose of this trial will be to evaluate the hypothesis that local delivery of thrombolytics vs. saline infusion prior to thrombus aspiration and PCI is safe and effective in patients with STEMI.
This research is being done to understand how changes in DNA may put people at risk for developing coronary artery disease. Stem cells will be made using cells from blood and/or skin biopsy samples. We are trying to understand which specific changes in DNA negatively impact a person's health.
The utilization of everolimus-eluting coronary stents in a coronary artery diseases is effective in reducing both repeat revascularization and major adverse cardiac events within two year follow-up. To evaluate the procedural, short and long term clinical outcomes of multiple everolimus-eluting coronary stent implantation in long (>30mm) coronary lesions.
Enhanced external counter pulsation (EECP) is a procedure performed on patients with ischemic heart disease. The treatment improves physical capacity and relieves angina pectoris. It is suitable for patients with persistent angina pectoris despite and for patients not amendable for coronary revascularization. Some studies demonstrate a relationship between diastolic and systolic blood pressure ratio (d/s ratio) and the effect of EECP. The aim of the investigators study is to understand the effect of EECP on left ventricular systolic and diastolic function assessed by trans-thoracic echocardiography (TTE). Hypothesis: EECP improves left ventricular systolic and diastolic function. There is a relationship between d/s ratio and aortic arterial stiffness EECP improves left ventricular diastolic function Standard TTE would be performed prior the EECP procedure, which lasts 60 min., and repeated every 15 minutes. Moreover the investigators would measure pulse wave velocity, a measure of aortic arterial stiffness, in order to investigate the relationship between the d/s ratio and arterial stiffness. The patients would be recruited among former study patients who have undergone EECP before. 20 patients with the best acoustic conditions would be selected and invited to enroll into the study.
Care coordination, disease management, geriatric care management, and preventive programs for chronically ill older adults vary in design and their impact on long-term health outcomes is not well established. This study investigates whether a community-based nursing intervention improves longevity and impact on cardiovascular risk factors in this population. The results reflect the impact of one of the study sites (Health Quality Partners) selected by the Centers for Medicare and Medicaid Services (CMS) to participate in the Medicare Coordinated Care Demonstration, a national demonstration designed to identify promising models of care coordination for chronically ill older adults. The study began in April 2002.