Active clinical trials for "Coronary Artery Disease"

The study hypothesis is that a meshed conduit made of safen vein allows a better patency at mid-long term than a safen vein alone. To test this hypothesis the investigators plan a prospective, randomized study, comparing grafts to the diagonal, in cases of vessel diameter under 1.5mm. A control angiography will be performed one year after the operation.

The proposed project is a prospective observational, single-center cohort study aimed to examine the progression of atherosclerotic alterations of the carotid arteries (IMT, plaque volume) during a follow-up of up to four years and to correlate the observed changes with traditional and novel biomarkers of atherosclerosis. A total of 600 subsequent patients with or established cardiovascular disease or at least one cardiovascular risk will be tested with a high-frequency ultrasound probe equipped with automated IMT measurements and 3D quantitative plaque volumetry. Plasma samples will be collected and tested for traditional and novel cardiovascular risk factors. Both ultrasound examinations and blood sampling will be repeated once per year to assess changes in these parameters over time depending on treatment modalities, which are left to the discretion of the treating physicians. The primary endpoint of the planned study will be the correlation between P-selectin and the progression of atherosclerosis as measured by plaque volume and IMT in the carotid and femoral arteries, respectively. Secondary endpoints will include the correlation of established (hypertension, smoking, diabetes, dyslipidemia) and novel risk factors (hsCRP, P-selectin, cholesteryl ester transfer protein (CETP), intercellular adhesion molecule-1 (ICAM-1), CETP TaqIb polymorphism) with the progression of atherosclerosis, the correlation of cardiovascular events with the progression of atherosclerosis and the additional predictive value of plaque volume and IMT compared to an established risk score (SCORE card).

The trial will examine whether a centralized Prevention Health & Cardiovascular Risk Service (PHCVRS) run by clinical pharmacists at the University of Iowa can be implemented in primary care offices and whether it can improve the care delivered to patients at risk for developing cardiovascular disease.

The purpose of this study is to determine whether or not the Angioshield device can be safely applied to support saphenous vein grafts used in standard coronary bypass surgery.

Kidney transplant candidates are at very high risk for coronary artery disease (CAD). The optimal strategy to monitor and maintain the cardiac fitness of patients awaiting kidney transplantation is unknown. Currently patients undergo annual testing; however, screening for CAD may increase morbidity and mortality by: exposing patients to the risk of angiography and revascularization procedures delaying or excluding patients from life saving transplantation. Before proceeding with a definitive study to determine whether screening is necessary, feasibility will be determined in this pilot study.

Heart attacks are most commonly caused by rupture of fatty deposits (plaques) within the wall of heart blood vessels. It appears that this process can also frequently occur without causing any symptoms and these events likely explain the development of narrowing within the heart arteries which can subsequently produce symptoms of angina (chest pain). Previous research has shown a specialised scanner known as a PET (positron emission tomography) scan can identify these recently ruptured plaques in patients without symptoms of a heart attack and these patients have changes on a blood test (troponin) which suggest that they are at higher risk of having a heart attack in the future. This study aims to identify these patients using the PET scan and then see if the markers of increased heart attack risk can be reduced by the use of a blood thinning medication (ticagrelor) which is already a well recognised treatment for people who have suffered a recent heart attack.

The purpose of this study is to compare pharmacokinetics between fixed-dose combination and separate combination of clopidogrel 75mg/aspirin 100mg.

Study the mechanisms of atherosclerosis based on a comparative study of physical and chemical properties of lipid tissues at various localization with subsequent development of concept of treatment and prevention.

Is the surgical treatment of patients with coronary heart disease using the T-graft technique an adequate solution that provides a sufficient myocardial flow reserve? A magnetic resonance examination (MRI) is required.

The Compare-Acute trial is a prospective randomised trial in patients with multivessel disease, who are admitted into hospital with a ST-elevation Myocardial Infarction. The purpose of the study is to compare a FFR guided multivessel PCI taking place during the primary PCI with a primary PCI of the culprit vessel only. Patients will be enrolled after successful revascularisation of the culprit vessel. Patients that have at least one lesion with a diameter of stenosis of more than 50% on visual estimation, feasible (operators judgement) for treatment with PCI in a non-infarct related artery, will be randomised either to the FFR guided complete revascularisation arm or staged revascularisation by proven ischemia or persistence of symptoms of angina. Approximately 885 patients will be entered in the study. Study hypothesis: FFR-guided complete percutaneous revascularisation of all flow-limiting stenoses in the non-IRA performed within the same procedure as the primary PCI or within the same hospitalisation will improve clinical outcomes compared to the staged revascularisation, guided by prove of ischemia or clinical judgment, as recommended from the guidelines.