Active clinical trials for "Myocardial Ischemia"

Recent technical advances in percutaneous coronary interventions have made it possible to approach patients with coronary lesions formerly considered to be classical candidates for bypass surgery, e.g. patients with left main coronary stenosis. However, it is still unclear whether the good long-term results achieved with the surgical therapy can be reproduced by an interventional strategy using drug-eluting stents (DES). The aim of the current trial is, therefore, to compare the clinical and angiographic results of PCI and CABG in patients with left main coronary stenosis.

The objective of the study is to collect information on the naturally occurring variations in ST deviations at different heart rates, as detected by the AnalyST and AnalyST Accel Implantable Cardioverter Defibrillators (ICD).

In the present study a cohort of diabetic patients without any symptoms and without known coronary artery disease (CAD) will be screened at the investigators' diabetes outpatients services. Those with intermediate or high risk will be asked to participate and enrolled. They will be seen and followed by the cardiologists in order to provide the best adherence to medical therapy. By mean of a randomization process, a group of patients will undergo an exercise electrocardiography (ECG) testing while the other group will continue to be regularly seen at the investigators' cardiology service. Those patients with a positive exercise ECG test will be study by coronary angiography and treated according to the severity of coronary lesions by percutaneous stenting or surgery. Both groups of patients will be seen every six-eight months for the next three years.

Heart transplanted patients often develop coronary artery disease and therefore have their coronary arteries examined with coronary angiography once a year.The purpose of the study is to validate computer tomography of the coronary arteries against coronary angiography and intravascular ultrasound in heart transplanted patients. Additionally the association between different inflammatory markers and the development of CAD specific to heart transplanted patients will be studied.

To compare computed tomography (CT) images (pictures) of the coronary arteries using the General Electric (GE) LightSpeed VCT scanner with x-ray coronary angiography in patients with typical or atypical chest pain suspected of coronary artery disease (CAD).

The overall goal of this study is to use MRI to: Examine the relationship between known risk factors for cardiovascular disease and coronary artery wall thickness; Examine the relationship between coronary artery wall thickness and other markers of subclinical coronary atherosclerosis, such as carotid wall thickness and coronary calcium scores; and, Examine the feasibility of measuring the progression of coronary artery wall thickness over time in a subset of participants.

The study is designed to see if stress echocardiography can be used as a screening exam in peri-, or post-menopausal women with a risk of developing of coronary artery disease and experiencing future cardiac events.

Treatment for no-option heart patients with coronary artery disease. Procedure includes the injection into the heart of a protein growth factor, administered by the Biological Delivery Systems MyoStar injection and mapping catheters, to stimulate the growth of blood vessels around blocked coronary arteries.

The hypothesis in this study was that ticagrelor switched to 60 mg after 1 month of standard dose, with antiplatelet activity that is not inferior to the standard dose and better than 75 mg clopidogrel for patients with ACS after PCI.

The primary purpose of this multi-center study is to collect and study the acoustic and electrical signals created by the heart during the cardiac cycle as a result of stenosis or plaque associated with coronary artery disease (CAD).