View clinical trials related to Myocardial Ischemia.
Filter by:The purpose of this study is to determine whether a novel non-invasive method to estimate coronary blood flow (FFRct) is applicable to evaluate the functional significance of coronary stenoses in non-culprit vessels in a population of patients with recent STEMI (ST-elevation myocardial infarction) and multivessel disease. The diagnostic performance and reproducibility of FFRct as well as the qualitative and quantitative correlation between FFRct and the regional coronary blood flow will be examined.
The GLOBAL study is an international multi-center, prospective study designed to enroll up to 10,000 consecutive eligible subjects who are clinically referred for coronary CT angiography for assessment of suspected coronary artery disease (CAD). The purpose of the study is to perform extensive biomarker analysis of atherosclerosis in patients phenotyped using advanced imaging modalities of atherosclerosis.
Percutaneous coronary intervention (PCI) for the treatment of coronary bifurcation lesion (BL) remains a challenging task. The DK-crush have been established as a safe and efficacious dual-stenting technique, which can effectively improve the success rate of final kissing balloon inflation (FKBI) and reduce long-term major adverse cardiac events (MACE). However, in the clinical real world, especially when the bifurcation angle was relatively small, the DK-crush still has several limitations, such as kissing unsatisfied (KUS), relatively complex wiring or rewiring technique, incomplete stent coverage in the distal side of the side-branch ostium and near the carina, severe stent deformation or evenly acute stent destruction. Our observational study showed that the DK-culotte was also a safe and feasible dual-stenting technique and was equal to DK-crush in terms of improving FKBI and MACE. Nonetheless, there remain no studies for head-to-head comparison of clinical outcomes between the two approaches. We, thereby, carry out a multicentre, non-inferior, randomized and controlled trial to compare DK-culotte stenting versus DK-crush stenting in the treatment of true BL.
A prospective Study, aiming to understand and analyse the key role of the novel High Sensitivity Troponin T (hsTnT) within a group of patients undergoing an uncomplicated coronary angiography without receiving any additional intervention. The peri-procedural elevation of the hsTnT indicates some other factors being responsible for the elevation of the hsTnT in absence of an acute coronary syndrome, such as physiological components or micro-injuries. A one year follow-up has been collected.
Antiplatelet therapy is the cornerstone for the prevention of atherothrombosis in patients with coronary artery disease (CAD). However, the efficacy and safety of antiplatelet therapy are varied due to ethnic and/or individual variability. The aim of the OPT-CAD study was to demonstrate contemporary status and outcomes of antiplatelet therapy in Chinese CAD patients, and to explore predictors of ischemic or bleeding events in such cohort.Patients above 18 years old who were diagnosed as CAD and received antiplatelet therapy were prospectively enrolled in this national wide, non-intervention registry. All medications and laboratory tests were physician discretion.
Several studies show an association between chronic obstructive pulmonary disease (COPD) and coronary artery disease (CAD). Besides risk factors such as smoking, both are associated with physical inactivity, advanced age and systemic inflammation The use of coronary computed tomography (CCT) with multiple detectors is a diagnostic method for coronary disease, describing the anatomy and severity of arterial obstruction. One way of estimating the cardiovascular risk is coronary calcium score (CCS). Due to the association between COPD and CAD, it is likely that many patients with IHD diagnosed by CT have reduced lung function. The aim of this observational study is to establish the correlation between the CCS and lung function. It will also correlate the presence of irreversible airway obstruction with significant coronary lesions. Patients over 40 years referred to CCT who agree to participate in the study will perform a spirometry with bronchodilator and collect a blood sample to measure serum markers of inflammation and cardiovascular risk (glycemia, lipid profile, C reactive protein (CRP), tumor necrosis factor-alpha (TNF-Alpha) and fibrinogen). The data will be compared in the general population and in subgroups: smokers, former smokers and nonsmokers. One year after the CCT patients will be contacted by the investigators and accessed for emergency room visits, hospital admissions and fatal or nonfatal coronary or respiratory events. The investigators hypothesis is that reduced lung function is independently associated with elevated CCS and is, also a risk factor for increased hospital admission and coronary events. The concomitant assessment of lung function and CCS can contribute knowledge about the epidemiological association between pulmonary disease and CAD. This can also add to evidence for the use of spirometry as a marker of cardiovascular risk.
To study whether renal sympathetic denervation(RSD) will reduce the all-cause mortality and the recurrence rate of a composite of cardiovascular event(including angina, myocardial infarction, repeat percutaneous coronary intervention and coronary artery bypass grafting) in patients after percutaneous coronary intervention(PCI). Besides whether RSD can reduce the risk factors for coronary heart disease.
Platelets are parts of your blood that stick together to help form a clot. The stickier your platelets are, the greater your chance of having a heart attack. A clot in the wrong place can lead to a heart attack or stroke. Ticagrelor (Brilinta) keeps platelets from sticking together and it helps people from having a heart attack. The American College of Cardiology has recommended a combination of aspirin and Brilinta as one of the best treatments for the prevention of heart attacks, and death in patients who have had a heart attack or coronary stents. However, it is unknown if Brilinta may improve its work to keep platelets from sticking together giving a loading dose in patients already treated with Brilinta. A loading dose is a one-time increased dose of the same drug. The purpose of this study is to demonstrate whether the platelets of patients treated with Brilinta become less sticky when Brilinta is re-loaded.
Patients with advanced coronary artery disease usually undergo incomplete myocardial revascularization due to the extension and diffuseness of the disease, with very poor distal arterial beds unsuitable for direct revascularization. This study was designed to test the hypothesis that direct, intramyocardial injection of autologous bone marrow cells may further improve myocardial perfusion in patients undergoing incomplete bypass surgery.
In patients with unprotected left main disease (ULMD), angioplasty is emerging as an alternative technique. The investigators aimed to determine the rate of major cardiovascular events in patients treated by angioplasty for ULMD in a "real world" registry.