Active clinical trials for "Myocardial Ischemia"

Based on the clinical data of patients, a machine learning model for coronary heart disease diagnosis was established to evaluate whether the model could improve the accuracy of coronary heart disease diagnosis, and to evaluate its authenticity, reliability and benefits.

to investigate the feasibility and diagnostic performance of contrast quantitative flow ratio (QFR) for identifying the functional significance of intermediate degree stenotic lesions in all-comer patients with coronary artery disease (CAD) including presentation of acute myocardial infarction (AMI) with non-culprit lesion. to compare the changes of contrast QFR and fractional flow reserve (FFR) according to severity of percent diameter stenosis (%DS) to evaluate prognostic implication of contrast QFR in comparison with FFR

Previous studies reported 20-30% of under-expansion or malapposition with BVS, which would increase the risk of adverse events including late stent thrombosis. OCT-guidance may improve more optimized scaffold placement and also better outcomes. However, there is still no sufficient evidence that OCT has an inevitable role in optimal implantation of BVS and it should be more evaluated in real practice. In the study, the investigators will evaluate an incidence of OCT-defined BVS sub-optimization requiring additional PCI+A1.

Drug-eluting stents (DES) have long been recommended as the default device for patients undergoing percutaneous coronary intervention (PCI). Drug-Coated Balloon (DCB) angioplasty is similar to plain old balloon angioplasty procedurally, but there is an anti-proliferative medication paclitaxel-coated on the balloon. DCB angioplasty has the following advantages compared to DES implantation: Firstly, the drug in DCB is uniformly distributed and released, whereas the drug release of DES via the stent platform is uneven -85% of the vascular wall is not covered by the stent strut. Secondly, there is no alloy in the vessel after DCB angioplasty, while the coronary stent platform and polymer might cause temporal or persistent inflammatory response leading to intimal hyperplasia. Finally, there is no metal cage restraining vessel motion after DCB, and the physiological function of coronary arteries would be maintained. Currently, DCB constitutes an important treatment option in ISR, which is endorsed by the 2018 European Society of Cardiology Guidelines on myocardial revascularization. In addition, some interventional cardiologist has also applied DCB in de novo lesions in their clinical practice. Diabetes is associated with worse outcomes after coronary revascularization and has been identified as an independent predictor of adverse events in patients with cardiovascular disease. Although some small sample size RCTs and observational studies have suggested that the clinical prognosis of DCB is non-inferior to the drug-eluting stent (DES), there is still a lack of evidence comparing the DCB versus DES for de novo or ISR coronary lesions in diabetic patients. The current study aims to compare the long-term efficacy of DCB to DES in de novo or ISR coronary lesions in diabetic patients.

Comparatively analyze the safety and validity of Amplazter Cardiac Plug (ACP) device-using percutaneous left atrial appendage closure, and the medical treatment with dabigatran plus aspirin or dabigatran plus clopidogrel after 3months triple therapy (Dabigatran plus DAPT (dual-antiplatelet therapy)) in patient with coronary artery disease treated with drug-eluting stent, accompanying atrial fibrillation. Total of 670 patients [left atrial appendage occlusion registry with 100 ACP/ 570 anti-coagulation registry: (285 Dabigatran plus aspirin) and (285 Dabigatran plus clopidogrel) therapy)] will be comparatively analyzed the safety and efficacy. Primary endpoints were a composite of death, non-fatal myocardial infarction, stroke, systemic embolism, and GUSTO bleeding (moderate to severe).

The registry will investigate the clinical performance and long-term safety of Magmaris in a real world setting

The DECREASE-PCI trial is a prospective, randomized, placebo controlled, double-blind, phase 4 study to evaluate efficacy and safety of triple anti-platelet therapy compared with dual antiplatelet therapy in patients treated with DES for Coronary Artery Disease. The primary objective of this study is to compare the safety and efficacy of triple antiplatelet therapy versus dual (standard) antiplatelet therapy in patients treated with drug-eluting stent (DES) implantation for the treatment of coronary artery disease.

This is a randomized clinical trial in U.S. Veterans to evaluate the impact of treatment for obstructive sleep apnea (OSA) on the effectiveness of cardiac rehabilitation, including impact on exercise capacity, disability, and quality of life.

The purpose of this study is to determine whether a single intracoronary infusion of Ad5FGF-4, delivered during induced transient ischemia, is effective in improving myocardial perfusion, angina functional class, patient symptoms, and quality of life. Short-term (8 weeks) and long-term (12 month) safety of Ad5FGF-4 will also be evaluated. The primary endpoint is change in adenosine triphosphate (ATP) stress SPECT reperfusion defect size.

The purpose of this study is to evaluate the efficacy of predilation with paclitaxel-eluting balloon and bare metal stent implantation VS conventional balloon and drug-eluting stent implantation in terms of restenosis