View clinical trials related to Angina.
Filter by:The purpose of this study is to measure the effect of ranolazine on ETT (exercise treadmill test) exercise duration in four ethnic subgroups with established coronary artery disease and risk factor(s) for the metabolic syndrome: Caucasian, African American, Southeast Asian and East Indian.
The primary goal of this study is to better understand how Transmyocardial Laser Revascularization (TMR) affects the functioning of the heart and, in turn, relieves angina in individuals with coronary heart disease using Magnetic Resonance (MR) images and Computed Tomography (CT) images in some patients.
The purpose of this study is to determine the safety of injecting autologous bone marrow concentrate with laser transmyocardial revascularization (TMR) for treatment of angina which cannot be treated by direct coronary intervention.
Coronary disease is one of the most frequent pathology of the modern world and the leading cause of death in the investigators country. In Spain more than 50.000 coronary percutaneous intervention and more than 5.000 coronary artery bypass graft (CABG) procedures are performed every year. Despite this data about 12% of patients have diffuse coronary disease and are not candidates to conventional therapies. Also between 15-25% of patients undergoing coronary bypass grafting receive an incomplete revascularization due to the poor quality of the coronary vessels. Transmyocardial revascularization (TMR) is a surgical procedure that uses a laser to create channels through the myocardial, so this laser stimulates local angiogenesis and provides blood in the ischemic area. Results of this procedure have shown clear benefits in terms of reduction of angina and increase of survival of patients, compared to medical treatment. Cell therapy in heart disease is offering in recent years encouraging results despite the methodological difficulties that being able to use this technique sometimes involves. The basis lies in the potential ability of stem cells to differentiate into any type of adult cell. In the case of cardiac cell therapy, stem cells can differentiate into myocardial cells or vascular cells capable of developing angiogenesis. Further studies are needed to draw firm conclusions about the clinical impact that the use of stem cells has on cardiovascular disease. Recently a system has been developed to create, at the same time and in a simple and effective way, the laser channels and the introduction of stem cells on the edges of these channels. This system called PHOENIX ™ consists of a laser probe capable of creating transmural channels in the myocardium. Based on the what has just been explained, it is quite possible that the combination of both therapies can increase successful results regarding the reduction in angina these patients need. Initially, and after having some experience with this type of treatment, the results could be analyzed and compared with the results obtained through laser therapy, with the help of a controlled clinical trial, such as the one the investigators are proposing.
The purpose of the study is to determine if the medication, ranolazine (study drug), can help improve blood flow to your heart, increase your exercise capacity and improve your quality of life (QOL). For this study, you will be asked to perform several tests in order to determine if your heart function, exercise capacity, chest pain and QOL have improved after 3 months of treatment with ranolazine. Ranolazine is approved by the U.S. Food and Drug Administration (FDA) for the treatment of angina.
The objectives of this post-marketing surveillance, conducted in Japan, is to know the frequency, type and degree of device malfunction, to assure the safety of the medical device, and to collect information on evaluation of the efficacy and safety.
Patients enrolled will need treated with an IVUS- VH (intravascular ultrasound-derived virtual histology) which is an arterial stent procedure, that involves threading a tiny wire into the artery, followed by a balloon, a stent, or other device to treat a blocked artery, and often (though not always), a special ultrasound catheter to take pictures of the inside of the artery. Participants in the study, will have an additional procedure performed: a tiny tube will be advanced into the heart artery to collect a blood sample for research purposes, and a blood sample will be collected from the femoral (thigh) artery through the tube that will be placed there as a standard part of having this procedure. The blood that is collected will be analyzed for markers of inflammation or irritation in the blood (c-reactive protein, myeloperoxidase, Monocyte chemotactic protein-1), as well and a gene called Matrix Metallopeptidase 3, which is believe to influence the progression of plaque on the walls of arteries and the progression of coronary artery disease. .
To demonstrate the relative bioavailability of atenolol tablets, 100 mg.
In April 2008, a coronary catheter based imaging system, LipiScan, was cleared by the FDA for use in detecting lipid core containing containing plaques of interest (LCP). These plaques are rich in cholesterol. The way that cholesterol and other lipids deposit with the coronary artery is unique to each patient. This study is an organized attempt to observe the LCP and the variety of ways that it presents in patients as detected by this recently approved device. This information will be used for physician training and to observe the behavior of the LCP in response to no therapy and currently approved therapies. The purpose of this project is further medical knowledge of the LCP and its treatment.
Coronary artery disease (CAD) is a common disorder that can lead to heart failure. Not all people with CAD are eligible for today's standard treatments. One new treatment approach uses stem cells—specialized cells capable of developing into other types of cells—to stimulate growth of new blood vessels for the heart. This study will determine the safety and effectiveness of withdrawing stem cells from someone's bone marrow and injecting those cells into the person's heart as a way of treating people with CAD and heart failure.