View clinical trials related to Atherosclerosis.
Filter by:The objective of this study is to show similar (non-inferior) safety and effectiveness between CYPHER® ELITE™ and CYPHER® Bx VELOCITY® Sirolimus-Eluting Stent Systems in a prospective, multi-center, randomized clinical study for the treatment of de novo native coronary lesions.
The objective of this study is to compare remote superficial femoral artery endarterectomy with suprageniculate bypass surgery in the treatment of long occlusions of the superficial femoral artery. The study hypothesis is that patency rates are comparable and therefore the minimal invasive remote superficial femoral artery endarterectomy can be considered in patients presenting with a long occlusion of the superficial femoral artery.
Coronary Artery Bypass Graft (CABG)Surgery is commonly used to treat patients with coronary artery disease (atherosclerosis) for the relief of angina (chest pain) and improve heart muscle function. Healthy veins or arteries, referred to as 'conduits' from elsewhere in the patient's body, are grafted (attached) from the aorta to the coronary arteries, bypassing (via new routes) coronary artery narrowings caused by atherosclerosis (hardening of the arteries) and thereby improving the blood supply to the myocardium (heart muscle). Over the years, a range of different veins and arteries from around the body have been used to bypass diseased coronary arteries. Typically, internal thoracic arteries from behind the breastbone and the saphenous veins from the legs are used for bypass. More recently, radial arteries from the forearm have also been used to bypass coronary arteries that are diseased (atherosclerotic). There is strong evidence to indicate that the left internal thoracic artery stays open the longest (i.e. has the highest patency) and achieves the best health outcomes. As a result, most cardiac surgeons use the left internal thoracic artery as their first choice of conduit (vessel used to bypass the blocked artery). However, many patients require multiple grafts and there is little evidence as to which grafts are the best conduits to use. It has been suggested that the radial arteries might function better than saphenous veins as conduits. The Radial Artery Patency and Clinical Outcomes Trial(RAPCO) aims to compare patency of the radial arteries with the right internal thoracic artery and also with the saphenous vein.
Lipid-rich atherosclerotic plaques, or "vulnerable plaques" are prone to rupture, causing local intravascular thrombosis, with subsequent grave clinical consequences. Atherosclerotic plaques normally removed during surgery, and peripheral blood samples will be studied to achieve the following objectives: "1" Define histological features of the vulnerable plaque, analyze its physical characteristics, and investigate selected gene expression. "2" Study biomarkers of inflammation in conjunction with the presence of vulnerable plaques. "3" Explore the potential role of infection in atherogenesis.
The purpose of this study is to collect data on the body's breakdown of sugar and fat in HIV infected adults. Data from this study will make clearer the roles of HIV infection and anti-HIV drugs in the development of diabetes, heart disease, and fat redistribution in HIV infected adults.
As men grow older, their testosterone levels decrease with age. One-third of men, 70 years of age or older, have low testosterone levels. It is known that short-term testosterone replacement is safe, and can increase muscle strength and physical function, but the risks of long-term testosterone replacement in older men with low testosterone levels are incompletely understood. Atherosclerosis is characterized by thickening of the artery walls, and the narrowing of the blood vessels as cholesterol is deposited in the lining of the arteries. It is the major cause of cardiovascular disease including ischemic heart disease (heart attacks) and stroke. Although, historically, there has been a widespread perception that higher levels of testosterone might increase the risk of atherosclerosis, the evidence from research does not support this. In observational studies, higher testosterone levels have been correlated with more favorable cardiovascular risk factors, and supplementation with testosterone to bring older men into the normal range for healthy younger men appears to improve several cardiovascular risk factors, and may slow the progression of atherosclerosis. The primary purpose of this study is to look at the effects of testosterone replacement on the progression of atherosclerosis in older men. This study is also being done to find out whether replacement with testosterone in older men with low testosterone levels improves their health-related quality of life.
The aim of this study is to explore and identify the effects of acetylcysteine, a common mucolytic with anti-oxidant property, on alleviating the damage caused by increased oxidative stress in hemodialysis patients.
AIM 1 will test the hypothesis that elevation of high-density lipoprotein (HDL) through treatment with Niaspan will accelerate the regression of atherosclerotic plaque in patients with established atherosclerosis. The investigators will therefore study patients with atherosclerosis in the aorta and carotid artery. Plaque quantification will be with magnetic resonance imaging (MRI). AIM 2 will assess the ability of Niaspan to improve endothelial function in patients with coronary artery disease and type II diabetes mellitus, who typically have low high-density lipoprotein cholesterol (HDL-C), and high risk of cardiovascular events.
1062 children at the age of 7 months and their families were randomized 1:1 in an intervention arm and a control arm. The intervention families has received child-oriented and individualized nutritional and life-style counseling that aims at decreasing child's exposure to the known environmental atherosclerosis risk factors. The controls children receive information as given at the well-baby clinics and in school health care of children and adolescents. The hypothesis is that the intervention children have healthier food habits and serum serum lipid and lipoprotein concentrations than the controls, fewer of them start smoking, and their physical activity level is higher than that of the controls.
To determine whether aspirin is more effective than placebo for the prevention of recurrent symptomatic venous thromboembolism when given for at least two years after the initial 6-12 month of oral anticoagulant therapy in patients with idiopathic venous thromboembolism