View clinical trials related to Atherosclerosis.
Filter by:This is an observational study to measure the thickness of artery walls in the neck (intima media thickness IMT) by ultrasound examination in middle-aged subjects with central obesity. The purpose of this study is to obtain local data how common asymptomatic atherosclerosis is, and to investigate the association between Cardiovascular Disease risk factors and intima media thickness (IMT) in the Hong Kong population. Results from this study may enhance the public awareness of asymptomatic atherosclerosis and understand its role in the development of Cardiovascular Disease in Hong Kong.
To evaluate the safety and effectiveness of the 2.25 mm XIENCE V® Everolimus Eluting Coronary Stent System (XIENCE V® EECSS) in improving coronary luminal diameter in subjects with ischemic heart disease due to a maximum of two de novo native coronary artery lesions in small vessels, each in a different epicardial vessel.
The aim of this study is to investigate whether the non-invasive ultrasound method for assessment of coronary blood flow, transthoracic Doppler echocardiography-coronary flow reserve (TTDE-CFR), can be used to measure drug effects.
Clopidogrel is a antiplatelet agent and is effective at reducing intimal hyperplasia in animal models of thrombosis.Several large clinical trials have demonstrated that clopidogrel with aspirin can reduce ischemic events and mortality in patients with atherosclerotic disease,therefore the combination of two antiplatelets might be useful to prevent patients received coronary artery bypass graft surgery from Saphenous vein graft disease. the aim of this study is to estimate the safety and efficacy of clopidogrel and aspirin therapy versus aspirin alone in patients after CABG.
The purpose of this study is to investigate an oral formulation of RVX000222 for safety, pharmacokinetic and efficacy in healthy subjects.
In this study the investigators will investigate whether a short pretreatment (3-7 days) with dipyridamole 200mg twice daily will protect patients against myocardial injury sustained during an elective dotter operation of the coronary arteries (PCI). The investigators hypothesize that dipyridamole can reduce myocardial injury sustained during elective PCI.
STUDY QUESTIONS - What is the real prevalence of platelet "resistance" to aspirin during the acute phase of stroke and after 3 months, and 1 year, as measured using different platelet function tests? - Do all methods measure similar levels of resistance, or are some methods more sensitive than others? - Does this resistance result in a worse clinical prognosis? Is this result independent of other variables? OBJECTIVES 1. Hospital Phase (Acute Stroke) - Determination, using various methods, of the prevalence of platelet hyperreactivity in patients treated with aspirin to treat ischemic stroke (acute phase) - Comparison of different assessment methods and identification of the most accurate of these - Identification of variables that correlate with platelet hyperreactivity 2. Follow-up Phase - Correlation between platelet hyperreactivity and important clinical outcomes at 12, 24, and 36 months - Correlation between platelet hyperreactivity and death or dependency at hospital discharge, at 3, 12, 24, and 36 months (Modified Rankin Scale) - Correlation between platelet hyperreactivity and recurrent stroke of any type - Correlation between different methods for evaluating platelet functions and identification of the most accurate method - Analysis of hyperreactivity over time THE STUDY - The study will include 200 consecutive patients seen in the emergency department of a large, urban hospital (1500 inpatient beds) and diagnosed with stroke in the acute phase; these patients will be treated with aspirin for an undetermined period - The investigators will not include patients who require full anticoagulation treatment, regardless of the cause - Importantly, the analysis of primary and secondary outcomes will be carried out after blinding the examiner to the results of the platelet aggregation tests PLATELET TESTS - Whole Blood Aggregometer, ChronoLog - VerifyNow, Accumetrics - PFA-100, Siemens - Plateletworks, Helena - Impact-R, Diamed - Serum thromboxane B2
The purpose of this study is to see if a dietary supplement, R-alpha lipoic acid, is able to reduce risk factors such as body weight and high blood cholesterol levels in overweight or obese participants.
The purpose of this study is to see if a dietary supplement, R-alpha lipoic acid, is able to reduce risk factors in people with documented heart disease and increased levels of inflammation.
The study was actuated to evaluate the effects of a 3-year intervention with diet and/or very long chain omega-3 (VLC n-3 PUFA), in a randomized 2x2 factorial design on the progression of atherosclerosis in a high risk population. A total of 563 elderly men were included and randomized to receive usual care and VLC n-3 placebo capsules (control group), dietary advice and VLC n-3 placebo capsules, usual care and VLC n-3 capsules, and finally both VLC n-3 capsules and dietary advice. The evaluation of atherosclerosis were i) ultrasound measurement of carotid intima media thickening ii) pulse wave propagation time iii) circulating biomarkers of atherosclerosis.