View clinical trials related to Coronary Artery Disease.
Filter by:In patients with ST elevation myocardial infarction (STEMI) the treatment goal is revascularization of the occluded artery with the use of primary percutaneous coronary intervention (PCI). There is a large subset of patients with STEMI who also have significant disease in arteries other than the site of occlusion, and away from the culprit artery. It is estimated that up to 50% have disease of more than 50% in the non-culprit arteries. The evidence on how to treat those patients with multi vessel disease is conflicting. Earlier large-scale studies and registries have suggested early and complete revascularization is of no benefit or even harmful. More recent studies have showed the opposite of that. The CVLPRIT study showed that early complete revascularization or preventive PCI reduced primary endpoint of a composite of all cause mortality, myocardial infarction and need for repeat revascularization. The benefit was mainly due to reduced repeat revascularization in the more intensive intervention group. The PRAMI study showed very similar results as well. The use of Fractional flow Reserve (FFR) in deciding complete revascularization has also showed conflicting results so far. A previous trial showed that FFR guided intervention post STEMI increased MACE. This was conflicted with more recent study, which showed FFR guided complete revascularization improved outcome when compared with more conservative treatment of ischaemia driven intervention. In this study, the investigators are going to assess the issue of staged revascularization guided by FFR or by angiogram, compared to the standard treatment of ischaemia driven revascularization
Currently, there are no data available regarding the effect of vorapaxar on clot generation kinetics or TIP-FCS when added to standard of care antiplatelet regimens. Potential reduction of TIP-FCS and clot generation kinetics by vorapaxar may assist in our understanding of the mechanism of action and in personalizing therapy in high risk patients to effectively reduce recurrent thrombotic event occurrences. The objective of this study is to determine onset-, maintenance-, and offset-effect of vorapaxar on platelet-fibrin clot generation kinetics by thrombelastography (R, TIP-FCS, TG) and thrombin generation kinetics (Lag time, peak thrombin production, time to peak thrombin generation, and endogenous thrombin potential) in antiplatelet naïve patients and patients on mono and dual antiplatelet therapy. This is a phase IV, prospective cohort (4 groups), non-randomized, open label, pharmacodynamics, and safety investigation.
Comparison of healing responses after treatment of complex bifurcation lesions with a dedicated bifurcation device (Axxess™ Biolimus Eluting Coronary Bifurcation Stent System + Absorb BVS in the distal branches) versus the Modified T stenting technique using Absorb BVS: an optical coherence tomography (OCT) analysis.
In many large trials, reducing low density lipoprotein (LDL) levels with rosuvastatin decreased the incidence of major cardiovascular events，but little attention to the effects of rosuvastatin on HDL level，especially on HDL subtype. Epidemiological evidence strongly favors the notion that the risk of cardiovascular disease (CVD) is inversely related to the plasma high-density lipoprotein (HDL) cholesterol concentration. HDL can be subdivided into large-sized (HDL2a, HDL2b) and small-sized subclasses (preb1-HDL, HDL3c, HDL3b, HDL3a) and preb2-HDL. Some studies indicate that only large HDL2a and HDL2b particles make HDLs possess anti-atherogenic functions. The investigators assume that rosuvastatin could play the role of anti-atherosclerosis though the levels of HDL2a、HDL2b increased.
The ultimate goal of this project is to develop a risk score to identify patients with vulnerable coronary atherosclerotic plaques, who are prone to suffer acute coronary syndrome. Early identification of vulnerable plaques may have an enormous impact on public health through primary and secondary prevention of acute myocardial infarction. Investigators hypothesize that a risk score that incorporates non-invasive coronary CT imaging (calcium score and/or coronary CTA) in combination with clinical characteristics (classical risk prediction models) will improve the identification of patients who are at highest risk to suffer myocardial infarction or sudden cardiac death. The overall goal of the OPeRA project is to develop, implement and validate a novel risk assessment tool based on image markers and clinical characteristics to identify patients who are at increased risk to suffer myocardial infarction or sudden cardiac death.
The purpose of this study is to evaluate the safety and efficacy of the eucaLimus Sirolimus Eluting stent system in patients with de novo coronary lesions.
This study is designed to validate the hypothesis that the treatment of rosuvastatin could increase the score of Calcification of Coronary artery(CAC) density in coronary artery disease(CAD) patients with diabetes mellitus.CAD patients with diabetes who confirmed CAC will receive rosuvastatin (20mg/d) therapy for 24 months.
In this study, the investigators sought to evaluate the feasibility of estimating external hemodynamic stress acting plaque with the use of invasively measured hemodynamic data from pressure wire pullback tracing. In addition, the investigators will also evaluate detailed plaque geometry and vulnerability using optical coherence tomography along with the hemodynamic stress.
The purpose of this study is to characterize the plaque morphology in patients with acute STEMI by OCT after aspiration thrombectomy.
The trial is a single centre, retrospective cohort, non-interventional study to be conducted in the department of cardiology, Chinese PLA General Hospital, Beijing, China. To evaluate the link between mean perioperative clinical heart rate and short-term composite outcomes during PCI among local CHD patients.