View clinical trials related to Coronary Disease.
Filter by:This prospective randomized study elucidates the effects of exogenous nitric oxide delivered to the extracorporeal circulation circuit for cardioprotection against ischemia-reperfusion injury during coronary artery bypass graft surgery with cardiopulmonary bypass.
Recommendations for cardiovascular rehabilitation (CVR) encourage exercise training, primarily involving the aerobic system, to allow patients to regain independence in daily activities. However, the lactic anaerobic process is also involved during these activities (stair climbing, carrying loads, etc.). Hence there is a major interest in accurately assessing patients' anaerobic capacities in order to tailor suitable exercise programs. However, there are no functional tests specifically dedicated to the evaluation of lactic anaerobic metabolism and adapted to people with coronary disease. The investigators offer a dedicated test, the short and fast test (SFST), which can be applied in current clinical practice and has already been evaluated in a population of healthy subjects. The purpose of this project is to evaluate the safety, feasibility and validity of SFST in a population of patients with coronary artery disease.
Polymorphisms of the cytochrome P450 (CYP) 2C19 enzyme has been consistently shown to modulate clopidogrel response. Accordingly, the Food and Drug Administration (FDA) has issued a warning on the potential for reduced efficacy of clopidogrel among carriers of loss-of-function alleles (LOF) for CYP2C19 and suggest considering alternative antiplatelet therapies for these individuals. The pharmacodynamic (PD) effects of prasugrel and ticagrelor are not affected by CYP2C19 genetic polymorphisms. However, to date there are no head-to-head PD comparisons between these agents among patients with different CYP2C19 genetic polymorphisms, which is currently under investigation in CAD patients undergoing PCI at UF Health-Jacksonville (UFJ 2014-12, NCT 02065479). In order to rule out play of chance findings, pharmacogenetic investigations require external validation cohorts to support the study findings. Therefore, the present randomized study is designed to serve as an external validation cohort conducted in patients with established CAD not undergoing PCI testing the non-inferiority in platelet reactivity of prasugrel versus ticagrelor among CYP2C19 LOF allele carriers.
In a cohort of symptomatic patients referred to coronary computed tomography angiography (CCTA), the investigators aim: 1. To investigate and compare the diagnostic precision of Rubidium Positron Emission Tomography (Rb PET) and 3 Tesla Cardiac Magnetic Resonance imaging (3T CMRI) in patients where CCTA does not exclude significant coronary artery disease (CAD) using invasive coronary angiography with fractional flow reserve (ICA-FFR) as reference standard. 2. To evaluate the diagnostic precision of quantitative flow ratio (QFR) and ICA-FFR in patients where CCTA does not exclude significant CAD using Rb PET and 3T CMRI as reference standard. 3. To show superiority for the CADScor®System compared to the Diamond-Forrester score in detection of CAD with CCTA and ICA quantitative coronary angiography (ICA-QCA) as reference standard. 4. To study the diagnostic accuracy of computed tomography fractional flow reserve (CT-FFR) in patients where CCTA does not exclude significant CAD with ICA-FFR as reference standard. 5. To identify and characterize genetic risk variants´ and circulating biomarkers´ importance in developing CAD. 6. To evaluate the bone mineral density in the hip and spine and correlate this to the degree of vascular calcification.
The SYNTAX-score has been proposed as a tool for risk stratification and guiding revascularization therapy in patients with complex coronary artery disease. There are limited data on the prognostic value of the SYNTAX-score among elderly patients. Aim of this study was to investigate whether age modifies the impact of the SYNTAX-score on all-cause mortality at 2 years after percutaneous coronary intervention (PCI).
The purpose of this trial is to investigate the relationship between DNA methylation and hydroxymethylation and the expression of DNMTs, TET family gene and the degree of coronary heart disease.
This is a prospective, observational, single-center, single-arm, clinical trial designed to assess the efficacy of FFRangio in measuring FFR obtained from angiography compared to Invasive FFR for diagnosing hemodynamically significant coronary stenosis in Multi-Vessel Disease.
This study will evaluate the effect of low level laser blood radiation applied to all participants for prevention of coronary artery disease in patients with high risk (hypertension,high blood viscosity, hypercholesterolemia as well as related immune issues)
This study will assess the use of position emission tomography/magnetic resonance imaging (PET/MRI) using ultra-small-superparamagnetic particles of iron oxide (USPIO) as a contrast agent in patients with coronary artery disease.
Anabolic androgenic steroids (AASs) have been associated with coronary artery disease (CAD). The illicit use of these substances also leads to a remarkable decrease in high-density lipoprotein (HDL) plasma concentration, which could be a key factor in the atherosclerotic process. The investigators tested the functionality of HDL by cholesterol efflux and antioxidant capacity and its association with CAD in young men.