Active clinical trials for "Myocardial Ischemia"

To determine familial and non-familial causes for susceptibility to atherosclerosis and the inflammatory response.

PROSPECT is a multi-center prospective registry of Acute Coronary Syndromes (ACS) patients with single or double vessel coronary artery disease. Approximately 700 patients with ACS will be enrolled into the study at sites in the United States and European Union.

Background: Myocardial fibrosis is a major component in cardiac remodeling in patients with myocardial infarction or hibernation. However, the association of cardiac fibrosis and coronary artery disease (CAD) in patients without infarction or hibernation is still unclear. In the present study, we analyzed the relationship between serum concentrations of procollagen propeptides and severity of CAD in such patients. Patients and methods: Forty-six patients (32 men and 14 woman; mean age 64 years) with chest pain and normal left ventricular contractility were enrolled into this study. Myocardial infarction was excluded by history and electrocardiograms. All patients received stress thallium-201 single photon emission computed tomography (SPECT) and analysis of the serum levels of the aminoterminal propeptide of type I and III procollagen (PINP and PIIINP).

To determine if risk factors measured in childhood can predict the development of atherosclerotic coronary and carotid artery disease in adulthood.

To conduct a randomized controlled trial to evaluate the effectiveness of an intervention to reduce dietary fat.

To evaluate the effectiveness of primary prevention of coronary heart disease risk factors by examining data from the National Health Examination Survey (NHES) and the National Health and Nutrition Examination Surveys (NHANES) to determine whether more recent birth cohorts were attaining lower blood pressure and cholesterol levels than earlier birth cohorts.

The purpose of this pilot study proposal is to test the ability of Transluminal Flow Encoding (TAFE) to evaluate vessel specific ischemia in patients with a clinical indication for invasive coronary angiography (ICA) with fractional flow reserve (FFR) measurements for suspected coronary disease.

In recent years, medical research into the cause and progression of heart disease due to narrowing and blockage of blood vessels to the heart muscle has improved the understanding of ischemic heart disease. It is now accepted that both the development and later progression with sudden blockage of blood vessels are associated with inflammation, although it remains unknown exactly what triggers this inflammatory process. It is possible that new blood tests which measure markers of inflammation in the bloodstream may be useful to help identify patients at risk of heart damage and assess response to treatment. The study plans to assess a new blood test for a known marker of inflammation (IL-4) in patients with heart disease. The hypothesis of this study is that, the cytokine, IL-4, measured by a new assay, is abnormally elevated in the blood of patients with coronary artery disease. Also hypothesized is that the degree of abnormality of blood IL-4, is related to important clinical events in such patients, including severity of disease, acute complications, and treatment.

The purpose of this study is to collect longer term follow-up information concerning health and survival on selected patients who received PB127 for injectable suspension in the pivotal trial (127-014).

The aim of this study is to determine in high risk diabetics if the positive predictive value of stress echocardiography is superior to the positive predictive value of stress scintigraphy in the diagnosis of coronary stenosis > 50%.