Active clinical trials for "Myocardial Ischemia"

To evaluate the prognostic value of coronary CT angiography (CCTA) for risk stratification in asymptomatic adults in comparison with conventional risk stratification (CRS) and coronary artery calcium scoring (CACS).

The primary objective of this feasibility study is to determine whether it is possible to conduct a study of the ClearView scan among patients under evaluation for acute cardiovascular events, as well as give insight into the performance of the ClearView scoring algorithm with respect to this patient population. The EPIC™ scan is a bio-electrographic tool that may assist the health care provider in rapid assessment of the systemic origin of the patient's presenting symptom(s). The EPIC ClearView is a potentially valuable resource that may benefit an emergency department (ED) by offering expedited "chest pain" etiologic differentiation capabilities. The subsequent results have the potential to include more rapid "chest pain" patient diagnosis and appropriate disposition of non-cardiac chest pain (rule out MI); optimized precious resource expenditure (nursing, physician, inpatient or observation bed, etc.); lower costs to facility, patient and insurance company; and greater patient satisfaction rates due to decreased ED wait time.

Genetic studies of coronary artery disease, restenosis after angioplasty or stenting, focusing on renin-angiotensin system genes and adiponectin gene, and their interactions.

This study aims to evaluate whether quantitative analysis of coronary MR angiogram would improve the detection of functionally-significant coronary artery stenosis.

Coronary artery disease (CAD) is usually used to refer to the pathological problem affecting the coronary arteries (usually atherosclerosis) that leads to Coronary Heart disease (CHD) which includes the diagnoses of angina pectoris, MI and silent myocardial ischemia. Despite the mortality for this condition has gradually declined over the last decades in western countries, it still causes about one-third of all deaths in people older than 35 years. Dyslipidemia is very important risk factors of atherosclerosis that is one of the causes leading to cardiovascular disease Despite management of dyslipidemia by controling fasting total plasma cholesterol and LDL cholesterol as these are the best biomarkers for prediction of cardiovascular diseases (CVD) risk. LDL elevation is absent in many patients with atherosclerosis and about 1/3 of cardiac events remains to be unpredicted using this method. Even more, in fasting normolipidemic subjects, increased CVD risk is associated with an exaggerated postprandial lipemic response. Postprandial dyslipidemia is defined as a rise in triglyceride-rich lipoproteins (TRLs), including chylomicron remnants (CMRs) and remnant lipoproteins (RLPs), after eating, has drawn an increasing interest recently because of its association with cardiovascular events. Chylomicron remnants (CMRs) have been shown to penetrate the artery wall and to be retained within the intima. Endothelial dysfunction is an initial process of atherogenesis and it contributes to the pathogenesis of CHD. Postprandial hyperlipidemia (postprandial hypertriglyceridemia) is involved in the production of proinflammatory cytokines, recruitment of neutrophils, and generation of oxidative stress, resulting in endothelial dysfunction

The purpose of this study is to investigate the change of total cholesterol content of erythrocyte membranes (CEM) in patients with coronary artery disease treated with secondary prevention drugs, and the correlation with the prognosis.

The investigator prospectively enroll 30,000 outpatients who were suspected of coronary artery disease (CAD) and underwent cardiac computed tomography angiography (CTA). The endpoint was major adverse cardiac events (MACE).The investigator aim to evaluate the prognostic value of CTA, risk factors and bio-markers for MACE.

The multicenter observational CLIMA registry has been conceived to explore correlation between OCT morphology of atherosclerotic plaques located in the left anterior descending artery with mid and long term clinical outcome.

Study Objectives/Specific Aims Overall Goal: To study the outcomes of patients undergoing TAVI, their subsequent results and complications. Objective 1: Identify risk factors that are predictive of the need for TAVI and CABG Objective3:Assess early 3 months outcomes and postoperative results Outcome Measure: 1. All-cause mortality within 3 months. Secondary Outcome Measures: Stroke Myocardial infarction Bleeding Hospital stay Acute kidney injury Number of patients with conduction disturbance and pacemaker implantation Gradient on implanted valve Degree of transvalvular leakage 6 weeks follow-up 3 months Echo

Premature coronary heart disease (CHD) refers to the onset of myocardial infarction in men < 55 years old, women < 65 years old. At present, researches on early-onset coronary heart disease mostly focus on its risk factors and clinical characteristics, but there is no relevant research on the relationship between early-onset myocardial infarction and atherosclerosis.