Active clinical trials for "Myocardial Ischemia"

Heart attacks are usually caused by a blood clot blocking an artery supplying blood to the heart. Current treatments are designed at relieving this blockage as quickly as possible to minimise damage to the heart muscle. However in restoring the supply of blood local damage known as "ischaemia-reperfusion injury" may occur. The aim of this study is to assess how clot forming and clot dissolving pathways are affected during this process, and examine the role of a natural inflammatory hormone, bradykinin. This will help us to understand the mechanism by which ischaemia-reperfusion injury may occur and to devise new treatments for heart attacks.

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.

Coronary heart disease (CHD) is the leading cause of death in the United States. One common risk factor for CHD is obesity. The presence of certain types of fat over others is more commonly associated with the development of CHD. This study will use data from a previous study to examine the association between pericardial fat, a type of fat that surrounds the heart, and CHD.

The primary purpose of this study is to evaluate the association between nonalcoholic fatty liver disease (NAFLD) by computed tomography (CT) scan and coronary artery disease (CAD) measured by the calcium (CAC) score among HIV-infected persons.

Background: Noninvasive cardiac stress testing is imperfect. Inconclusive test results generate further expensive testing. In patients with known or suspected coronary artery disease, both computed tomography (CT) and magnetic resonance imaging (MRI) have been shown to provide suitable results for detecting the disease. However, both types of scans have limitations in their usefulness, and it is not known whether one is preferable in either accuracy or cost-effectiveness. Objectives: - To determine the accuracy and cost-effectiveness of CT and MRI in subjects with a prior inconclusive heart stress test. Eligibility: - Patients 18 years of age and older who have had an inconclusive heart stress test within the past 90 days. Design: A blood test will be obtained prior to both heart tests. This will require less than a teaspoon of blood. A CT scan will be performed, accompanied by beta blocker medications (to slow heart rate) or nitroglycerin (to enlarge blood vessels) to improve picture quality, as needed. An MRI scan will be performed. Scans will be taken before, during, and after the patient receives vasodilators (to increase blood flow to the coronary arteries and detect blockages in heart blood vessels). Heart rate and function will be monitored with an electrocardiogram.

The purpose of this study is to evaluate the effects of an intensive Cardiac rehabilitation program on glucose metabolism of non-diabetic coronary artery disease patients.

In Taiwan, heart disease and cerebrovascular disease ranked the second and third of ten leading causes of death in female in 2007; half of these deaths is due to coronary artery disease (CAD). Postmenopausal status is an independent risk factor for CAD. Early assessment and proper management of risk factors may reduce the prevalence rate of CAD. In the past decade, despite increased attention to CAD in women, most studies focused on certain menopausal status instead of all phases of menopause or on risk factors limited to related metabolic syndrome. Because the prevalence of risk factors related to CAD is influenced by various physiological and lifestyle status in different menopausal statuses, the purpose of this study, at the first stage, is to explore respectively the risk factors of CAD among middle-aged women in three menopausal statuses. At the second stage, the influence of a lifestyle management program on risk factors modification among pre-menopausal women is examined in this study.