Active clinical trials for "Coronary Disease"

Coronary heart disease (CHD) is the leading cause of deaths that are related to cardiovascular disease in the United States, and Mississippi's CHD mortality rate is the highest in the nation. This study will examine data from the Jackson Heart Study to determine the effect of socioeconomic status and psychosocial factors on CHD risk in African Americans in Mississippi.

The main aim of this trial is to assess the long-term prognostic value of different types of Factor XIIa in an unselected, single center series of 871 chest pain patients admitted to the emergency unit, employing blood samples collected at admission. The second purpose of this study is to assess the incremental prognostic value of B-type natriuretic peptide (BNP) and high-sensitive C-reactive protein (hsCRP). A third purpose of this study is to evaluate the prognostic impact of the Omega-3 Index which is a measure of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) relative to other fatty acids in the erythrocyte membrane.

Cardiovascular risk in women is systematically underestimated by both - society and physicians. Women younger than 50 years of age with acute coronary syndrome have 2x higher mortality compared with age-matched men. A number of common vascular-disease-related conditions are more frequent in women than in men. Women develop a more severe or different form of vascular disease then men. Variability of onset, relative risk, and the synergy of traditional and novel risk factors creates a challenge to physicians possibly resulting in suboptimal management and disregard in women presenting with angina symptoms. During last 10 years the rise in coronary artery disease (CAD) prevalence in younger women is observed. Emerging data suggest a unique risk profile in women (hypoestrogenemia with adverse effects of a protracted dysmetabolic state). The risk factors assessment and the risk factors profiles in women that are associated with CAD may be different than in men and thus merit reassessment. Purpose The primary objective of this study is to determine characteristics and prognosis of women with premature coronary artery disease and to evaluate the extent of atherosclerosis

The purpose of this study is to determine the effect of sleep apnea on mortality, stroke and myocardial infarction among 408 patients with coronary artery disease referred for evaluation of coronary intervention who were examined with overnight cardio respiratory monitoring between March 1992 and June 1995.

In an observational multi-centre study (CHALLENGE), the effects were assessed of starting treatment with low doses of rosuvastatin in statin naive patients with a history of coronary heart disease (CHD), peripheral vascular disease (PVD), cerebrovascular accident (CVA), transient ischemic attack (TIA) or diabetes (DM), on low-density lipoprotein cholesterol (LDL-C) goal achievement. Also proportional changes in LDL-C, high-density lipoprotein cholesterol (HDL-C), total cholesterol (TC), triglycerides (TG) and the ratio TC/HDL-C were studied.

To investigate the role in coronary heart disease (CHD) of intragenic variation in a network of six genes affecting lipoprotein transport and metabolism.

To explore the role of insulin growth factor in cardiovascular disease in older men and women.

To investigate the predictive value of using measures of cholesterol homeostasis to identify individuals at high risk of developing cardiovascular disease relative to established risk factors.

This study will compare changes in atherosclerotic plaque in the coronary arteries (vessels on the surface of the heart that supply blood to the heart) with changes in the carotid arteries (vessels in the neck that supply blood to the brain) in patients enrolled in a Pfizer-sponsored treatment trial for coronary artery disease. Atherosclerosis is a buildup of fatty deposits (plaque) in arteries that can lead to blockage of the vessel, possibly resulting in heart attack or stroke. A major question in cardiovascular disease is how closely atherosclerotic changes in the coronary arteries correlate with changes in the carotid artery that occur with treatment. substudy of a Pfizer. Patients enrolled in the Pfizer trial comparing the effectiveness of the drug atorvastatin with a combination of atorvastatin and CETP inhibitor (a drug to increase HDL cholesterol levels) may be eligible for this substudy. Participants undergo magnetic resonance imaging (MRI) and ultrasound of the carotid arteries to measure the thickness of the vessels. The results are then compared with the coronary artery images obtained as part of the patient's evaluation for the Pfizer trial. MRI MRI scans use a powerful magnet with an advanced computer system and radio waves to produce accurate, detailed pictures of organs and tissues. During the scan the patient lies on a table in a narrow cylinder containing a magnetic field, wearing earplugs to muffle loud noises that occur with electrical switching of the magnetic fields. A medicine called gadolinium contrast may be injected into a vein during part of the scan to brighten the images. The scan takes about 30 to 90 minutes. An electrocardiogram (ECG) is done during the scan to monitor the heart's electrical activity. Patients who agree to undergo another MRI test are also imaged in a scanner that uses a stronger (3 Tesla) magnet. Ultrasound An echocardiogram (ultrasound of the heart) uses sound waves to image the carotid arteries. A gel is applied to the area of the neck to be imaged and a small handheld ultrasound probe is held against the neck to take the pictures. Participants return after 2 years for a second set of tests.

To understand the complex, longitudinal relations between physical fitness, physical activity, body mass and composition and fat distribution, and genetic factors and their independent or interactive effects on the development of obesity, the metabolic syndrome, and sub-clinical cardiovascular disease.