View clinical trials related to Infarction.
Filter by:The goal of this study is to determine the safety of giving a patient's own bone marrow-derived stem cells delivered with a catheter (tube) into the coronary arteries (blood vessels of the heart). Stem cells are simple cells produced by the bone marrow that can develop into many types of cells. It is possible that these cells will decrease the size of damage caused to the heart from a heart attack and increase the pumping efficiency of the heart; which can be decreased due to a heart attack. The stem cells will be taken from bone marrow and then given back into the heart vessels.
The purpose of this study is to examine whether the lowering of blood homocysteine levels by treatment with B vitamins can prevent cardiovascular disease
Early reperfusion therapy has improved the clinical outcomes of patients with acute myocardial infarction (AMI), but these benefits are limited in some patients by reperfusion injuries. There is now increasing evidence that reactive oxygen species cause reperfusion injury. This study was designed to examine the effects of edaravone, a novel free radical scavenger, in patients with AMI.
The benefit of reperfusion therapies for ST-elevation acute myocardial infarction (STEMI) is limited by postinfarction left ventricular (LV) dysfunction.The purpose of this study is to determine whether intracoronary transfer of bone marrow cells will augment left ventricular function recovery of the heart.
This study will evaluate the effectiveness of a novel cardiovascular disease prevention program designed for delivery through existing primary health care services in rural villages in Andhra Pradesh. The primary aim is to increase the number of high-risk individuals in the population that are appropriately managed with proven, low-cost preventive interventions. The corresponding null hypothesis is therefore that the prevention program will result in no change in the proportion of high-risk individuals identified and treated in villages assigned to intervention compared with those villages assigned to control.
Background: Acute balloon angioplasty is beneficial in patients with acute myocardial infarction. However, presently this treatment is not offered to patients with symptom duration above 12 hours. Hypothesis: Acute balloon angioplasty for myocardial infarction is beneficial despite symptom duration above 12 hours. Methods: In 60 patients with myocardial infarction and symptom duration above 12 hours, the proportion of non-perfused myocardium before acute angioplasty and 1 month after angioplasty is compared to evaluate if myocardial tissue can be saved by acute angioplasty despite long symptom duration.
In patients with acute ST-segment elevation myocardial infarction (STEMI), percutaneous coronary intervention (PCI) may cause thrombus dislodgment and impaired microcirculatory reperfusion. This study was designed to test the hypothesis that thrombus aspiration before standard PCI may improve acute myocardial reperfusion, measured by ST-segment resolution (STR) and myocardial blush grade (MBG), compared with standard PCI.
Rationale: ST-elevation myocardial infarction (STEMI) is usually triggered by rupture of an atherosclerotic plaque that then accumulates platelets and fibrin and leads to an occlusive coronary thrombus. Clinical benefits obtained with revascularization of the infarct related artery (IRA) depend on the achievement of four goals: 1. Early reperfusion 2. Full restoration of normal flow in the epicardial vessels 3. Full restoration of flow in the microcirculation, and 4. Preservation of myocardial function. Reperfusion of the IRA can be achieved pharmacologically with intravenous thrombolytic agents, or mechanically with percutaneous coronary intervention (PCI). In Canada, thrombolysis is the current standard of care in most hospitals, although there is mounting evidence that primary PCI is superior, and many Canadian centres are shifting towards this strategy. To offer primary PCI to community hospitals without on site cardiac catheterization facilities, regional programs need to be present that allow rapid transfer to invasive centers that offer this procedure round-the-clock. Recent evidence suggests that angiographic and clinical results with primary PCI could be further enhanced by facilitation with a pharmacological treatment given prior to the procedure. The present proposal plans to examine the safety and efficacy of eptifibatide to facilitate coronary angioplasty in STEMI in patients who present to centres with and without on-site catheterization facilities. The primary outcome measure will be a composite clinical endpoint including death, recurrent myocardial infarction, recurrent unstable ischemia, or stroke, at 30 days. Secondary endpoints include the percent thrombolysis in myocardial infarction (TIMI) grade 3 coronary flow after the PCI, myocardial perfusion score, individual clinical outcomes as listed for the primary endpoint, resolution of ST-segment elevation, requirement for subsequent revascularization, frequency of congestive heart failure (CHF), cardiogenic shock, and Canadian Cardiovascular Society (CCS) angina class.
Cardiovascular disease (CVD) is the leading cause of death in North America and Europe. The major cause of CVD is atherosclerosis like coronary artery disease (CAD). The results of recent trials hint that the course of CAD may be positively influenced by an increased intake of omega 3-fatty acids. The OMEGA-Trial analyses this effect in subjects who suffered an acute myocardial infarction. They are divided into two groups, both receiving standard post-infarction therapy. The subjects of one group additionally receive 1 gram of omega 3-fatty acids daily for a time-period of 12 months, while the subjects in the second group receive 1 gram olive-oil as placebo. Within the period of 12 months all events are reported and used to analyse the efficacy and safety of the additional therapy with omega 3-fatty acids.
Purpose: The purpose of this project is to determine how effective the telephone-based counseling program is at helping patients with heart disease become more physically active. Hypotheses to be tested: - Compared to usual care, patients in the physical activity counseling program will: 1. significantly increase total distance measured by an accelerometer and minutes of physical activity at a moderate intensity or higher, 2. have significantly higher generic and heart-disease health-related quality of life, and 3. will lead to greater improvements in the mediators of behavior change (psychosocial variables, i.e. self-efficacy, outcome expectations, etc.) at 26 and 52 weeks; - Changes in the mediators of physical activity will predict changes in physical activity outcomes at 26 and 52 weeks; - The physical activity counseling program is preferable to usual care from the perspective of health care system costs.