View clinical trials related to Coronary Artery Disease.
Filter by:To evaluate the effect of evolocumab on fibrous cap thickness (FCT) in participants with non-ST-elevation acute coronary syndrome (NSTE-ACS) who are taking maximally tolerated statin therapy.
This prospective registry is intended to evaluate the safety and efficacy of the XIENCE Sierra stent.
This study will investigate if patients with peripheral artery disease (PAD) can be successfully incorporated into an already existing Cardiac Rehabilitation programme. One group of PAD patients will exercise as a group, and the other group will exercise alongside patients with coronary artery disease (CAD).
Computed tomographic coronary angiography (CTCA) has been recently introduced to non-invasively evaluate coronary artery pathology. Histology and intravascular ultrasound imaging studies have demonstrated that CTCA enables identification of plaque characteristics associated with increased vulnerability (i.e., plaque burden and composition) and allows assessment of vessel physiology (i.e., local haemodynamic forces), and reports have shown that CTCA can predict atherosclerotic evolution and detect lesions that will progress and cause cardiovascular events. Despite the wealth of data provided, CTCA has still a limited role in the study of atherosclerosis. Prior to unlocking the full potential of CTCA and enable its broad use, further work is needed to develop user-friendly processing tools that will allow fast and accurate analysis of CTCA, and examine in detail the accuracy of modern CTCA imaging in assessing plaque pathology. In this application, the investigators aim 1) to develop a CTCA analysis system that will enable fast segmentation, reliable coronary reconstruction and blood flow simulation in a user-friendly environment and 2) validate the efficacy of state-of-the-art CTCA for assessment of coronary plaque morphology and physiology against intravascular plaque imaging using hybrid near infrared spectroscopy-intravascular ultrasound.
This study aims to reduce patient risk and costs to the healthcare system by improving the diagnostic yield of invasive coronary angiography through existing triage processes to improve risk stratification using Coronary Computed Tomographic Angiography (CCTA) as a first step in low risk patients. All low-risk patients referred for invasive coronary angiography will be potentially eligible for CCTA instead of invasive angiography as a first-line diagnostic test. All CCTAs will be read by both a level 3-trained cardiologist and a radiologist. The results of the CCTA, coupled with evidence-based management recommendations will be sent to the referring physician and an invasive angiogram will be arranged by the HIU triage, only when clearly indicated
Current care after coronary artery bypass grafting (CABG) involves a check-up 6 weeks after hospital discharge followed by an exercise programme called cardiac rehabilitation (CR) from 8 weeks. This practice is not evidence-based; it is therefore uncertain if earlier check-up and CR would promote quicker recovery. The proposed research will examine the feasibility of having check-up at 3 weeks and CR from 4 weeks after hospital discharge, and the associated advantages. The investigators plan to recruit 100 patients undergoing planned CABG through a median sternotomy, at 2 NHS hospitals over 5 months. They will include 18 to 75 year olds, capable of giving Informed consent and fit for CR exercises. Patients will be approached before surgery and given study information to read. Four days after surgery, patients who are willing to take part will have their routine clinical examination, blood tests, chest x-rays and heart tracings reviewed to determine suitability for the study. The investigators will obtain informed consent, do breathing tests and, ask the patients to complete a general health questionnaire. A computer will allocate patients equally to the proposed care (intervention group) or current care (control group). After discharge, patients will attend check-up and semi-structured interview at 3 weeks (intervention group) or 6 weeks (control group) before starting CR from 4 weeks (intervention group) or 8 weeks (control group). CR will involve exercise classes once or twice a week for 8 weeks, and fitness tests. Patients will have a final assessment at 26 weeks, with clinical examination, fitness and breathing tests, and completion of general health questionnaire. The investigators will analyse patients' and staff experiences, patient fitness levels, quality of life and costs, associated with each pathway. They will report potential benefits of proposed care, if any. This study findings will be used to design a larger trial to determine the best practice.
For permanent coronary stents, reduction of thickness of struts have become one of the most important innovation, being related to easier manipulation, reduced risk of stent thrombosis and low rate of revascularization. Consequently the investigators performed a multicenter registry enrolling all consecutive patients treated with very thin stents for ULM or bifurcation.
This prospective, observational study evaluates the accuracy of stress testing with the MyoStrain SENC CMR Imaging System to detect myocardial ischemia and viability in patients with suspected coronary artery disease using low levels of stress.
TruePhysioTM Sensor-equipped Ultrathin Pressure Microcatheter (referred to as TruePhysioTM Microcatheter below) is a novel device for evaluating the functional significance of coronary stenosis. This study will compare the differences, if any, between the coronary fractional flow reserve (FFR) measured by the TruePhysioTM Microcatheter and the Pressure Wire.
The aim of this study is to evaluate the relation among cholesterol uptake capacity which measure HDL functionality, neoathrosclerosis and target-lesion revascularization.