View clinical trials related to Coronary Artery Disease.
Filter by:Diagnosis of relative contributions of large artery blockages and microvascular blockages is very much needed in the treatment of coronary artery disease. In order to achieve this, two novel parameters, pressure drop coefficient (CDP), which combines flow and pressure readings and Lesion flow coefficient (LFC), which combines anatomical details of the lesion with pressure and flow readings, are being investigated.
This study is a prospective, randomized controlled, single blind, two-arm, multicenter clinical evaluation. Diabetic patients (n=112) with de novo coronary artery disease will be randomized to one of the 2 treatment arms: 1) Reservoir-Based Polymer-Free Amphilimus-Eluting Stent or 2) Polymer-Based Everolimus-Eluting Stent. The purpose of this study is to determine whether Polymer-Free Amphilimus-Eluting Stent implantation is effective in reducing neointimal hyperplasia as compared to Polymer-Based Everolimus-Eluting Stent in diabetic patients, using Optical Coherence Tomography (OCT) as the primary imaging modality.
This study is a prospective, observational study to estimate the relationship between dosage of clopidogrel and platelet aggregation in Chinese with different genotype. The investigators suppose both pretreatment dosage of clopidogrel before percutaneous coronary intervention (PCI) and CYP2C19 genotype may effect the platelet aggregation as well as clinical outcome.
Patients with acute coronary syndromes (ACS) are at increased risk for acute kidney injury (AKI) when they undergo urgent/emergency coronary angiography. The optimal medical treatment for preventing the occurrence of contrast induced - acute kidney injury is still controversial. Fenoldopam mesylate is a dopamine A1 receptor agonist that augments renal plasma flow that has reduced the risk of radiocontrast dye nephropathy in some (but not all) preliminary studies. Neutrophil gelatinase-associated lipocalin (NGAL) is a new biomarker predictive for AKI already shown to be useful for earlier diagnosis of contrast induced nephropathy. The primary objective of this study is to to test the hypothesis that fenoldopam, in addition to standard treatment, reduce the occurrence of contrast induced - acute kidney injury in patients with acute coronary syndrome (ACS) undergoing urgent/emergency coronary angiography and/or percutaneous coronary intervention.
Turner syndrome is a congenital complete or partial lack one of the female sex chromosomes affecting 1 of 2000 live born girls. The syndrome is characterized by an increased prevalence of ischemic heart disease, aortic dilation and dissection, hypertension, stroke and autoimmune diseases in general. Our study aim is: - Using MRI to further characterize and find risk factors leading to aortic dilation. - Using MRI to assess the degree of aortic distensibility. - Using Computed tomography x-ray scanning of the heart and coronary arteries to characterize the prevalence and degree of ischemic heart disease and coronary anomalies. - Using pressure sensitive ultrasound (applanation tonometry) to assess the degree of aortic stiffness when compared to controls using end points as Pulse Wave Velocity, Augmentation Index and Central Pulse Pressure.
The purpose of this study is to demonstrate that a BioFreedom™ Drug Coated Stent is non-inferior to a bare metal stent at one year as measured by the composite safety endpoint of cardiovascular death, myocardial infarction and definite/probable stent thrombosis, and that its efficacy is superior to a bare metal stent as measured by clinically driven TLR at one year.
This study will evaluate the influence of total atherosclerotic burden assessed by 3-vessel fractional flow reserve (FFR) on the clinical outcomes of the patients with multi-vessel disease. For this purpose, the clinical data of the patients with 3-vessel intermediate coronary artery disease, whose FFR was measured at all 3-vessels due to their own clinical needs, will be analyzed.
This study was advocated by Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences in October 2011. It was funded by China major scientific and technological specialized project for 'significant new formulation of new drugs'. Dengzhanxixin is kind of Chinese Medicine injection used for treating Ischemic Stroke and coronary heart disease in many Chinese hospitals. The purpose of this study is to determine adverse drug events or adverse drug reaction in large sample size 30,000 patients.
The aim of this study is to determine on preliminary basis weather an elevated pro-calcitonin level can be used to assess ischemia as a result of coronary artery complications during percutaneous coronary intervention (PCI).
There is currently no published algorithm for secondary prevention prognosis of CHD that is representative of the England GP-registered population and that includes both symptomatic and asymptomatic patients (as identified through primary care). In this paper the investigators will exploit routinely collected information in clinical practice to model CHD prognosis based on a large contemporary open cohort of stable CAD patients. Although the investigators model is based on data from GP practices in England only, the investigators believe that this population is sufficiently heterogeneous in terms of ethnic mix, socioeconomic background, predisposing characteristics and lifestyles to generate a prognostic model with good generalizing power to the wider population. Among the research questions the investigators will try to answer is whether established risk factors for primary care prevention (smoking, hypertension, dyslipidaemia, diabetes) are also reliable for risk-stratification of patients who have already developed CAD. Similarly, the investigators will examine whether strong predictors of adverse outcomes in ACS patients in the short term, such as admission SBP and heart rate, are also associated with their long term prognosis.