View clinical trials related to Coronary Arteriosclerosis.
Filter by:A low level of plasma high-density lipoprotein (HDL) cholesterol, "the good cholesterol", is the most common lipid abnormality observed in patients with a premature atherosclerotic cardiovascular disease. HDL carry excess cholesterol from peripheral tissues to the liver to be metabolized or excreted, a process known as reverse cholesterol transport. Epidemiological studies have shown an inverse correlation between plasma levels of HDL cholesterol and the risk of cardiovascular disease. An increase in plasma HDL cholesterol levels by 1 mg/dL may reduce the risk of cardiovascular disease by 2 to 3%. The standard care of treatment for a low level of HDL cholesterol is: 1) lifestyle modifications including exercise, smoking cessation, weight control, moderate alcohol intake and decreased dietary fat intake - all patients are encouraged to follow these lifestyle modifications; 2) medications which can raise HDL cholesterol. Currently used medications to treat lipid disorders can increase, in some extent, HDL cholesterol. These include niacin (vitamin B3), fibric acid derivatives (fibrates) and statins. However there is no data on the effect of these medications on severe cases of HDL deficiency. This project aims to determine whether currently available medications, used in standard medical practice for the treatment of lipoprotein disorders, can substantially increase HDL cholesterol in severe cases of HDL deficiencies.
Physicians tend to always use the lowest dose of statins to initiate therapy even in subjects who require large reductions in cholesterol. The study evaluates if selecting the starting dose based on baseline and target LDL-C cholesterol would provide better results (ie proportion of subjects resching target)
The purpose of this study is to establish safety and feasibility of utilizing Adipose-Derived Stem and Regenerative Cells (ADRC's) in patients who have suffered a ST-elevation acute myocardial infarction.
European physicians tend to always use the lowest dose of statins to initiate therapy even in subjects who require large reductions in cholesterol. The study evaluates if selecting the starting dose based on baseline and target LDL-C cholesterol would provide better results (ie proportion of subjects resching target)
The purpose of this study is to establish safety and feasibility of utilizing Adipose Derived Stem & Regenerative Cells (ADRCs) in patients who have areas of myocardium that are not revascularizable and have demonstrated reversible ischemia.
Our research aims to improve the use of medicines known to prevent recurrent heart attacks. In particular, we know that statin treatment is useful after heart attacks, but many patients do not use it. There are a few possible reasons for this. Patients cannot find affordable medicine. Their doctor may not prescribe the medicine after they leave the hospital. Some people may culturally mistrust using the medicine. So they may decide not to take it even if it is prescribed. We are developing a hospital based culturally attuned program to target this problem. In this program, a community health worker counsels and helps patients in accessing pharmacy assistance programs. We will test whether this program can improve appropriate statin use. We will enroll patients who have heart attacks. We will compare patients who are counseled by the community health worker with those who get the usual care at baseline and at 6 and 12 months (participants enrolled during the early phase of the recruitment will have an additional study visit at 24 months). We will test if their "bad" cholesterol levels are controlled. We will find out how regularly they have filled their questionnaire and taken the medicine. Finally, we will test if they are getting benefit from the statin treatment. We will do this using blood tests and imaging the patients' arteries with ultrasound. We will also measure how cost-effective it is for a hospital to run the program. It is our goal to develop a community health worker model that is culturally sensitive for people with cultural, educational or educational barriers. Statin use is known to benefit patients in theory; such a culturally competent program will improve health outcomes in practice. After we test it, a cost-effective program such as this can be implemented in other hospitals.
Options for coronary revascularization include stent implantation and coronary bypass surgery. Both modalities have their unique advantages and disadvantages in terms of clinical outcomes as well as financial impact on the medical system. We wish to investigate the late results of patients undergoing coronary revascularization, the need for re-hospitalization, re-intervention, patient satisfaction as well as the financial burden on the medical system. The study will be conducted by historical prospective review of hospital records in conjunction with records of the medical insurance companies ("HMO's").
The purpose of this study is to demonstrate that Iodixanol 320 is associated with a lower incidence of contrast-induced nephropathy (CIN) when compared with hyperosmolar contrast medium Iomeprol 350 in patients with impaired renal function undergoing percutaneous coronary interventions (PCI).
This study was designed to assess the effects on coronary artery plaque using aggressive lipid-lowering therapy versus moderate lipid-lowering therapy. A substudy will examine the effect of these treatments on brachial artery vasoactivity.
Multidetector Computed Tomographic Coronary Angiography (MDCTCA) has been recently demonstrated to be accurate and may be used as a potential alternative to conventional invasive coronary angiography, which requires cardiac catheterization, for the diagnosis of coronary artery disease. The purpose of this study is to see if MDCTCA can identify significant coronary artery disease as good as or better than conventional coronary angiography (CICA). The study is designed to enroll 900 subjects and is being conducted in 6 hospitals in Ontario. Subjects scheduled for conventional cardiac catheterization and coronary angiography will receive an additional test using MDCTCA. The information gathered during the MDCTCA will be compared to the results of the scheduled conventional invasive coronary angiogram.