View clinical trials related to Coronary Disease.
Filter by:Exercise-based cardiac rehabilitation (CR) has been shown to consistently reduce the rates of total and cardiovascular-related mortality and morbidity. Sedentary behaviours have been shown to be high in patients with cardiovascular disease, but it is not yet known if current CR programming results in significant reductions in these behaviours, or whether a targeted component is warranted. It is also unclear if self-reported sedentary time measures can provide valid and reliable information for monitoring these behaviours in a CR setting, or whether more objective measures are needed. The purpose of this study is to assess the feasibility and usability of the activPAL3 devices for measuring sedentary time in a CR setting, describe changes in sedentary time that occur with standard CR and assess whether the addition of prompting cues from a device can result in further declines in sedentary behaviour and improvements in clinical outcomes, health related quality of life, symptoms of anxiety and depression, aortic stiffness, and aerobic capacity.
The CARDIOFLOW study compares the standard test, a pressure wire test called fractional flow reserve (FFR), with a new method that is based on taking a detailed "3D" ECG called Cardiogoniometry (CGM). FFR is an angiographic technique which measures the physiological significance of a coronary stenosis and trial data has shown that basing management decisions on this data improves prognosis. However FFR studies are expensive and invasive, whereas CGM is painless and simply involves placing 4 sticky pads to the patient's chest / back and is similar to an ECG (heart tracing). The investigators want to see whether we can use this new method to find out whether treatment with coronary angioplasty would be of benefit. If so, then in the future, clinicians could use this method (CGM) rather than pressure wire assessment (FFR). This would have several advantages; in particular, it can be easily performed in the clinic and avoids the need to use an expensive pressure wire.
The SYNTAX III Revolution trial is a randomized diagnostic research study that investigates the use of CT scan and angiogram of the heart to help doctors decide which method is the best to improve blood supply to the heart in patients with complex coronary artery disease. Each patient will undergo an angiogram and CT scan per standard of care. The randomization strategy in this study is not between patients but between two teams of doctors, the so-called "Heart Teams", will be randomized: in the first round, team 1 assesses the angiogram, and team 2 assesses the CT scan. Then they make a decision about which treatment would be the best to treat complex coronary artery disease. In the second round, both teams see the imaging method that they did not see in the first round, and make the decision again. The final decision on the clinical treatment strategy is at the sole discretion of the Heart Team and there are no criteria described in SYNTAXIII Revolution protocol leading influencing this final decision. Hypothesis: Determination of the best treatment strategy for coronary artery disease based on a CT scan will result in similar decisions as based on invasive coronary angiography.
The investigators attempt to investigate the organ protective effect of remote ischemic conditioning in patients undergoing non-cardiac surgery with history of ischemic heart disease.
The purpose of this study is to find an association between a protein named Podocan and WNT pathway regulatory molecules in patients with different forms of Coronary Artery Disease (Acute Coronary syndrome, Stable Angina and Coronary Artery Restenosis). It has been found in experimental studies that this protein is regulating smooth muscle cell function and hence may be influencing the progression of Coronary Artery Disease (CAD). We are testing to see if the same regulatory function exists in human subjects. Studying patient's blood will possibly enable to identify an association between Podocan and CAD. This may help to better prevent and treat CAD with improved understanding of the mechanism of the disease. No drugs or other therapeutic interventions will be used for the purpose of the research study. Only blood samples will be collected in the cardiac catheterization lab. As a part of this study participants will be followed for repeat events or repeat cardiac catheterization over a period of 24 months.
Demonstrate in a large multicenter population the diagnostic performance of a pre-commercial on-site, local, CT angiography derived FFR algorithm in comparison to invasive FFR.
The aim of this study is to evaluate the efficiency of a minimal intervention on risk perception of physical inactivity in patients with known coronary heart disease (CHD) and patients at risk for CHD. Therefore half of the patients (intervention group) get a personal feedback on their individual level of physical activity measured by pedometers and self-report questionnaires plus information about the risk factor 'physical inactivity' for heart diseases. Following the hypotheses the feedback should increase the patients risk perception of physical inactivity and furthermore increase physical activity.
Evaluation of a strategy of selected revascularization guided on myocardial ischemia detection after the TAVI procedure by using single photon emission computed tomography (SPECT) myocardial perfusion imaging.
Quantitative Flow Ratio (QFR) is a new method for evaluating the functional significance of coronary stenosis by calculation of the pressure in the vessel based on two angiographic projections. The purpose of the WIFI study is to evaluate feasibility of QFR when performed during coronary angiography and compare diagnostic accuracy to standard FFR.
The purpose of this study is to evaluate long-term outcome of treatment(percutaneous coronary intervention or coronary-artery bypass graft) in unprotected left main coronary artery stenosis in Korea.