Active clinical trials for "Coronary Artery Disease"

The aim of this clinical study is to investigate the safety and feasibility of Autologous Muscle-derived Cells (AMDC; a preparation of a patient's own cells) as a treatment for patients with advanced heart failure caused by ischemia.

The purpose of this study is to compare standard therapy (risk factor control, life style modification) versus standard therapy plus low-dose rosuvastatin therapy (5mg/day) on progression of coronary atherosclerosis in statin naive individuals who have mild CAD (nonobstructive coronary atherosclerotic plaques) and normal LDL (low-density lipoprotein) cholesterol levels(<130mg/dl).

The purpose of this study is to evaluate the effect of intensive blood pressure control compared to standard blood pressure control on progression of coronary atherosclerosis by intravascular ultrasound in hypertensive patients with coronary artery disease.

A substantial proportion of patients undergoing elective coronary artery bypass grafting have a history of paroxysmal atrial fibrillation. Paroxysmal atrial fibrillation has adverse short-and long term postoperative effects. Pulmonary vein isolation (PVI) seems to be effective treatment for paroxysmal atrial fibrillation. PVI can be done concomitantly with coronary artery bypass grafting, aortic valve replacement for aortic stenosis and combination of them. Procedure is well defined and safe. There is a lack of convincing evidence of the effect on postoperative atrial fibrillation burden, quality of life and symptoms especially in correlation with atrial fibrillation paroxysms.

Fractional flow reserve (FFR) is a test that can be performed at the time of heart catheterization. It measures the change in pressure across a narrowing in the heart artery during high flow situation, and provides reliable information about the functional severity of the narrowing. FFR measurements accurately predict whether a stent is needed, and is considered an excellent test before placement of stents to treat narrowed heart arteries. However, FFR is not used in every case because of the extra time needed and the associated device costs. Cardiac Services BC (an agency of Provincial Health Services Authority) is sponsoring this study to find out if FFR should be used in most cases (routine), rather than the current selective approach.

This study is a continuation of two previous studies --- the Severe Ischemic Mitral Regurgitation (SMR) Trial (NCT00807040) and the Moderate Ischemic Mitral regurgitation (MMR) Trial (NCT00806988) --- to learn more about patients' health 5-10 years after their mitral valve surgeries. The investigators will collect long-term health information on SMR and MMR trial participants using electronic medical records, patient and/or family input, public records, and healthcare- and vital status-related databases.

Primary purpose: To evaluate the evolution in time of the antiaggregant platelet effect of sertraline (SSRI) compared to placebo in depressive patients with ACS (Acute Coronary Syndrome) and treated as recommended by a double antiplatelet therapy, aspirin and clopidogrel. Hypothesis: The benefits of SSRIs observed in depressive patients with ACS are related to an antiplatelet effect.

The purpose of this study is to compare short-term (6-month Dual Anti Platelet Therapy(DAPT) followed by clopidogrel monotherapy) vs. standard long-term dual antiplatelet strategies (24-month DAPT followed by aspirin monotherapy) on clinically relevant bleeding complications (Bleeding Academic Research Consortium(BARC) type 2, 3, or 5)31 in patients after zotarolimus-eluting stent implantation.

The pathogenesis of CHD remains poorly known despite much research over the last few decades. Numerous non-genetic variables have been demonstrated to have a significant impact on the risk of CHD. However, the fact that many individuals with severe CHD do not have any of these non-genetic risk factors supports the notion that genetic factors play a role in the occurrence and progression of CHD. In this study, we investigated the association of polymorphisms affecting Vascular endothelial factors A (VEGFA) and its receptor VEGFR2 (rs3025039, rs699947, rs2305948, rs1870377), CXCR4 (rs2228014), CCR2 (rs1799864), C3 (rs2230199), CCL2 (rs1024611 and rs2857656) and CCL5 (rs2107538 and rs22280789) with CHD susceptibility and the severity of coronary lesion. On another side, clopidogrel is largely prescribed in association with aspirin in order to prevent atherothrombotic complications in patients with acute coronary syndrome. Its effectiveness is undeniably proven by several studies and clinical trials over the years, however, some patients have presented ischemic events such as thrombosis on stent or myocardial infarction despite a well-conducted treatment. This clopidogrel non-responsiveness is probably multifactorial; several genetic and non genetic factors may contribute to impaired platelet inhibition by clopidogrel. In this regard, it is meaningful to determine genetic polymorphisms contributing to the variability of clopidogrel response in patients with Coronary Artery Therefore, the goal of this study is to determine the impact of the polymorphisms, affecting CYP2C19, PON, ABCB1, ITGB3 and P2RY12 genes, on the response to clopidogrel in patients with CAD.Disease (CAD). In fact, the recognition of these factors might predict the exposure to the risk of thrombosis and cardiovascular death in these patients.

The objective of CAREBANK study is to establish definitive relationships with human cardiac samples and clinical phenotypes in patients undergoing cardiac procedures. Specifically, the investigators aim at comparing atrial phenotypes from atrial fibrillation patients and controls. The work consists of three broad categories: A) role of atrial cardiomyopathy in atrial fibrillation; B) genetic defects predisposing to atrial fibrillation; and C) the role of inflammation in atrial fibrillation.