View clinical trials related to Coronary Artery Disease.
Filter by:Background: Upper gastrointestinal (GI) bleeding, a common disorder encountered at emergency room, may cause hypotension and tachycardia that may in turn result in myocardial ischemia in patients with coronary artery disease (CAD). An emergent endoscopy with hemostasis is the mainstay of management. However, endoscopy itself may result in myocardial ischemia. Whether myocardial ischemia and arrhythmia occurs more frequently during emergent endoscopy in patients with CAD remains unknown. Objective: To determine whether the risk of myocardial ischemia and arrhythmia is increased during emergent endoscopy in patients with CAD. Method: Adult patients with documented CAD undergoing emergent endoscopy due to UGI bleeding are included. Adult patients without CAD undergoing emergent endoscopy due to UGI bleeding were included as the control group. The expected case numbers were 50 patients in each group. Patients with terminal illness, pregnancy, active lung disease requiring ventilator support are excluded. Before endoscopy, symptoms of myocardial ischemia, blood pressure, heart rate, O2 saturation, hemogram, baseline 12-lead EKG, and cardiac enzyme are obtained. All patients are monitored with Holter EKG since 10 minutes before endoscopy to 2 hours after the procedure. Blood pressure, heart rate, and O2 saturation are closely monitored during the procedure. Endoscopy is performed by experienced endoscopist and endoscopic hemostasis is done according to the types of lesions. The duration of endoscopy, types of endoscopic hemostasis, and blood pressure are recorded. After endoscopy, symptoms of myocardial ischemia, blood pressure, heart rate, O2 saturation, hemogram, baseline 12-lead EKG, and cardiac enzyme are checked again. Keywords: Emergent endoscopy, coronary artery disease, cardiovascular events
Genetic studies of coronary artery disease, restenosis after angioplasty or stenting, focusing on renin-angiotensin system genes and adiponectin gene, and their interactions.
The purpose of this study is to investigate the changes of cardiorespiratory fitness and left ventricular function in type 2 diabetes after uncomplicated coronary artery bypass graft (CABG) surgery. We hypothesize that exercise capacity, left ventricular diastolic function, and biochemical data improves after 12-wk exercise training in patients with type 2 diabetes underwent CABG.
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).
Elevation of plasma homocysteine has been recognized as one of the risk factors of atherosclerotic disease. The objectives of this study are: (1) to investigate the level of plasma homocysteine and the prevalence of hypehomocysteinemia (2) to find out the role of homocysteine in coronary artery disease and the proper cut-off point of plasma homocysteine to evaluate the presence of coronary artery disease; (3) to understand the control condition of tranditional risk factors of cardiovascular disease, especially hypertension, dyslipidemia, and diabetes mellitus. The study subjects were recruited from the ambulatory setting of cardiology in National Taiwan University Hospital.
This study is to evaluate the safety and efficacy of fluvastatin versus placebo, dosed shortly after or immediately when the coronary event occurs.
A magnetocardiograph (MCG) is a medical device capable of recording the magnetic fields that arise from the electrical activity of the heart. It was developed for the general purpose as a noninvasive, non-contact diagnostic tool of obstructive coronary artery disease (CAD), and especially of cardiac ischemia. The overall objective of the present study is to demonstrate the efficacy of this MCG device in the diagnosis of lack of oxygen to an area of the heart (as in an Heart attack) in patients presenting with chest pain.
magnetocardiography has been extensively studied focusing on the possible clinical applications of the device. Evaluating the precision of a device is a prerequisite condition to know what are significant changes and how can these be trusted. A respectable reproducibility study for the MCG measurements is crucial for this new device to be used for clinical applications. In this study, we will focus on a critical portion of the heart cycle assessing for changes in time of the computerized analysis of this phase and comparing the analysis done by two examiners.
A magnetocardiograph (MCG) is a device capable of recording of magnetic fields arising from the electrical activity of the heart with traces similar to an electrocardiogram (ECG). This system was developed as a noninvasive, non-contact diagnostics of obstructive coronary artery disease (CAD), and especially of lack of oxygen in the heart as in a heart attack. The overall objective of this study is to demonstrate the efficacy of this MCG device for the detection and diagnosis of lack of oxygen of the heart in patients with chest pain.
HYPOTHESES - Discharge on the same day after uncomplicated trans-radial coronary artery stenting is safe and effective. - Hospitalized patients can be safely returned to the referring center the same day following trans-radial coronary artery stenting. - Abciximab given as a single bolus with optimal trans-radial coronary artery stenting is as safe and effective as bolus + 12 hrs perfusion and does not hamper early discharge. - Same-day discharge is cost-effective and increases patient satisfaction. OBJECTIVES AND END-POINTS The objectives of the present study are to assess the effectiveness and safety of same day hospital discharge after uncomplicated coronary artery stenting when a single bolus of Abciximab is used. The primary end-point of the study is the composite of death, myocardial infarction, repeat hospitalization, urgent revascularization, severe thrombocytopenia, access site complications and major bleedings at 30 days following stent implantation. The secondary end-point is the composite of death, myocardial infarction, repeat target vessel revascularization at 30 days, 6 months and 1 year following stent implantation. Other secondary end-points include the total hospital stay (days) between the index procedure and the first 30 days follow-up, the number of unsolicited medical visits in relation with the percutaneous procedure, index of patient satisfaction and direct and indirect costs.