View clinical trials related to Coronary Artery Disease.
Filter by:The aim of the study is to test the accuracy of Regadenoson to induce maximal and steady state hyperemia as compared to central venous infusion of adenosine for assessing fractional flow reserve. (adenosine is considered to be the gold standard)and to investigate the time intervals of maximum hyperemia induced by centrally and peripherally administered Regadenoson.
The purpose of this project is to see if heritable alterations in the function, biology and vascular repair capacity of vascular cells make a major contribution to the burden of coronary artery disease (CAD), fibromuscular dysplasia (FMD), and other vascular diseases. In more detail, FMD is a nonatherosclerotic vascular disease that primarily affects women aged 20 to 60. It commonly affects the renal and carotid arteries but may involve almost every artery in the body. At the cellular level, FMD is characterized by increased fibroblast proliferation and collagen deposition. This study aims to define some of these cellular problems by directly studying fibroblast cells from FMD patients and healthy control subjects. Similarly, CAD is among the leading causes of death worldwide. However, a large part of the risk for CAD is unexplained. It is thought that a major but undefined risk factor may be gene (genomic) variations causing a change in vascular cell function. Here, we will study important vascular cell types in patients with severe and early onset CAD in an attempt to define these problems. Therefore, in summary, this study will look to define the various cellular-level problems that occur in patients with both in CAD and FMD. These data will be linked to DNA-level analyses to ultimately attempt to define the cause of these conditions.
This is a prospective, multicenter, historical controlled study. The present clinical study will measure non-inferiority of 12 month TLF rate compared to historical control.The selected historical control is the Xience V arm from RESOLUTE All-Comer clinical study, that study is a prospective, multicenter, randomized, two-arm, international, open-label study.The historical control did not have angiographic follow up before 12 months, in the present clinical study, only subjects with clinical follow-up conducted at 12 months without any pre-specified angiographic assessment prior to 12 month clinical follow-up will be part of this analysis cohort. Out of the total 1200 patients, 900 patients (clinical follow-up cohort) will be included in this analysis cohort.
This study is a Phase I, intravenous, single-dose escalation study to evaluate the safety, tolerability, pharmacokinetics and pharmacodynamics of PZ-128 (pepducin inhibitor of PAR1) in subjects with vascular disease or who have 2 or more coronary artery disease (CAD) risk factors.
This study is to assess the function of blood vessels while being treated with different types of blood thinners to determine the effect of these medications on blood vessels.
The purpose of this study is to characterize changes in gene and protein expression in peripheral blood in patients with, or at risk for, heart disease during an intensive lifestyle modification program.
Coronary heart disease is a very common condition caused by narrowings in the blood vessel supplying the heart. the investigators are studying new tests to diagnose heart disease. In this study the investigators plan to investigate a special scan called a PET/CT (Positron emission tomography/computed tomography) and a new type of CT (Computed tomography) scan to tell us about the flow of blood to the heart muscle.
The aim of this registry is to analyze several factors affecting the procedural success and clinical outcomes at 1 year of follow-up according to the approach site.
In patients with unprotected left main (LM) true bifurcation lesion (cohort A), elective 2-stent strategy is superior to provisional strategy at preventing the occurrence of 12-month target lesion failure after percutaneous coronary intervention for bifurcation lesion. In patients with unprotected LM non-true bifurcation lesion (cohort B), 1-stent technique with mandatory final kissing ballooning is superior to 1-stent technique without kissing ballooning at preventing the occurrence of 12-month target lesion failure after percutaneous coronary intervention for bifurcation lesion.
The aim of the RIMINI-Trial is to examine the effect of Ranolazine on ischemic myocardium in acute myocardial ischemia. A pilot-trial by Venkatamaran et al. recently demonstrated, that the area of ischemic myocardium in patients with stable coronary artery disease can be reduced by Ranolazine-treatment2. This effect was shown by significantly reduced areas of atypical or dysfunctional myocardium in SPECT-examinations. The dimension of myocardial damage (i.e. area of ischemic myocardium) is directly related to the rate of complications (i.e. left-ventricular pump failure, malignant arrhythmia) and the grade of Rehabilitation to daily life (i.e. persistent reduced left-ventricular ejection fraction). In patients with stable angina pectoris, Ranolazine is used with beneficial results1. Ranolazine improves diastolic blood flow and therefore microcirculation in the myocardium by reducing diastolic tension (via inhibiting late Na+-Influx and consecutive Ca2+-Overload). Recently published data2 showed that treatment with Ranolazine significantly reduces the ischemic area in chronic damaged myocardium. This is due the effect of improved microcirculation in hibernating myocardium. Early administration of Ranolazine and improvement of microcirculation in patients with acute damaged myocardium (i.e. directly after acute ischemia) should lead to a recruitment and re-uptake of cardiac activity of hibernating myocardium. For the RIMINI-Trial patients are given Ranolazine on top of the guideline-based treatment to reduce the area of acute ischemic myocardium. Patients with unstable angina pectoris and proof of acute cardiac ischemia, proof of myocardial dyskinesia and angina pectoris in the patient history will receive unaltered guideline-based therapy for acute cardiac ischemia5,6. All necessary procedures will be performed to stabilize patients to a hemodynamically compensated state and patients are then transferred to receive cardiac catheterization (angiography and angioplasty if necessary). After patients are stabilized Ranolazine will be given additionally to guideline based medication. The measurement of the ischemic myocardial area will be done via three functional echocardiographies with speckle tracking technique10. A statistical evaluation of ischemic myocardial area before and after treatment with Ranolazine/Placebo will be done after conclusion of the RIMINI-Trial to show the effect of Ranolazine in acute myocardial ischemia.