View clinical trials related to Myocardial Ischemia.
Filter by:In a cohort of symptomatic patients referred to coronary computed tomography angiography (CCTA), the investigators aim is: 1. To investigate and compare the diagnostic precision of Rubidium Positron Emission Tomography (Rb PET) and 15O-water PET (15O-water PET) in patients where CCTA does not exclude obstructive coronary artery disease (CAD) using invasive coronary angiography with fractional flow reserve (ICA-FFR) as reference standard. 2. To study the diagnostic accuracy and prognostic value of computed tomography fractional flow reserve (CT-FFR) in patients where CCTA does not exclude obstructive CAD with ICA-FFR as reference standard. 3. To validated a pre-test probability model including genetic and circulating biomarkers. 4. To identify and characterize genetic risk variants and circulating biomarkers importance in developing CAD. 5. To evaluate the bone mineral density in the hip and spine and correlate this to the degree of vascular calcification.
Hyperemia with adenosine was an elemental process in FFR examination. Adenosine injection will induce some discomfort, and increase cost expenditure. Nitroglycerine will induce an acute drop of Pd/Pa, and this lowest Pd/Pa was determined as NTG-Pd/Pa. NTG-Pd/Pa has a linear relationship with FFR value and has a good diagnostic accuracy to predict FFR≤0.80 in our recent study. There is only one prospective study report on the relationship between NTG-Pd/Pa and FFR. In this study, we aim to evaluate the safety of NTG-Pd/Pa, the repeatability and dose-response of this novel index. Furthermore, we will investigate the diagnostic accuracy of NTG-Pd/Pa, with FFR≤0.8 and Resting full-cycle ratio≤0.89 as ischemic threshold respectively.
Targeting patients with severe ischemic cardiomyopathy, the purpose of this study is as follows: to confirm short-term efficacy by observing changes and transitions in cardiac function and clinical symptoms compared with each patient's baseline (before and after comparison) by human iPS cell-derived cardiomyocyte sheet transplantation, and to evaluate the safety and tolerability including the combined use of immunosuppressants.
CAD is a challenging affliction which has a high annual morbidity rate in China and the world. Severe CAD may lead to compromised cardiac function, decreased exertional capacity and poor quality of life (QOL). The most common treatment for CAD is medication, percutaneous coronary intervention (PCI) and coronary artery bypass graft (CABG). However, some patients had long-term of history with complex severe artery lesions, they are not candidate for redo interventional therapy. Cardiac shock wave therapy (CSWT) is an exploring therapy used globally for CAD patients, which is known for its safety, non-invasiveness and effectiveness.The previous RCT from the investigators' team has already finished, and results are in submission processing. This is a prospective, single arm, observational study design. CAD patients will be enrolled consecutively. The entire treatment period will last 3 months with 9 sessions. Outcomes are assessed as efficacy outcomes and safety outcomes. Efficacy outcomes include symptom (CCS score, NYHA classification, nitroglycerin dosage, SAQ questionnaire), exertional capacity (6MWT), quality of life (SF-36 questionnaire) and imaging evaluation (myocardial perfusion imaging and echocardiography). Safety outcome include the change of serum TNT, CKMB, BNP and adverse event (AE) occurrence. The participants will be followed up at 13th week, 6th months and 12th months.
A real world registry to compare dual therapy with Dabigatran/Ticagrelor to dual therapie with Dabigatran/Clopidogrel in patients with an indication for NOAC undergoing PCI in the setting of ACS. Hypothesis: Dual therapy with Dabigatran/Ticagrelor will be non-inferior in reducing the risk of bleeding compared to Dual therapy with Dabigatran/Clopidogrel (RE-DUAL PCI trial based) in patients with an indication for NOAC undergoing PCI in the setting of ACS. Thromboembolic events, stent thrombosis and death will be evaluated for estimation of events between both groups. Data will be pooled for this secondary endpoint with data from the upcoming WOEST-3 trial to compare both treatments.
This trial is designed to associate angiography-based fractional flow reserve (3D-angio-based FFR) values with optical coherence tomography findings in pre- and post-percutaneous coronary intervention in patients with non-ST segment elevation acute coronary syndromes.
Depression doubles the risk of death in patients with coronary heart disease (CHD), but so far, there is insufficient evidence that we can reduce the risk of death by treating depression. This study will investigate the cardiac risk markers that are associated with depression symptoms that remain despite treatment, and identify potential targets for their treatment. The results of the study will inform the development of more effective interventions to improve both depression and survival in patients with CHD.
The registry follows the ESC/EACTS guideline and further investigates the clinical performance and short-term safety of RMS (Resorbable Magnesium Scaffolds) in a real world setting within the scope of its intended use without further (medical related) exclusion criteria according to their respective instructions for use (IFU).
Patients with coronary artery disease, especially after PCI, require long-term oral antiplatelet therapy. However, this patient population may inevitably require non-cardiac surgery for a variety of conditions. In order to avoid the occurrence of bleeding events, oral antiplatelet agents are usually discontinued before non-cardiac surgery in patients with coronary artery disease, which may increase the incidence of ischemic events. Therefore, it is important to provide patients with the optimal perioperative antithrombotic treatment to balance the risk of bleeding and ischemia.
The investigators hypothesize that preventive VT substrate ablation in patients with chronic ICM, previously selected based on imaging criteria (BZC mass) for their likely high arrhythmic risk, is safe and effective in preventing clinical VT events.