View clinical trials related to Coronary Atheroscleroses.
Filter by:This project aims to improve direct patient care by reducing the risks of futile exposure to ionizing radiation and iodinated contrast in patients referred for coronary computed tomography angiography
Carotid plaque burden and composition features, particularly lipid necrotic core, are significantly associated with severity of CAD stenosis. This study aims to explore the relationship between various phenotypic patterns of carotid atherosclerosis with the prevalence, phenotype, and severity of coronary atherosclerosis. The patients with chest tightness or chest pain will receive carotid artery ultrasonography before coronary angiography so as to explore the relationship between them.
Background: Diabetes, and especially diabetic kidney disease is associated with the development of cardiovascular disease such as calcification in the coronary arteries and heart failure. Sleep apnea is frequent among patients with diabetes and diabetic kidney disease and sleep apnea itself is a solitary risk factor in the development of cardiovascular disease. Nonetheless, sleep apnea is underdiagnosed in diabetes patients because of a discrepancy between sleep apnea severity and actual oxygen deficiency symptoms which makes the diagnosis difficult. For that reason, many diabetics have undiagnosed sleep apnea together with cardiovascular disease. Early discovery of sleep apnea among high risk diabetic patients may therefore be considered crucial before cardiovascular complications develop. For this reason, sleep apnea screening of high-risk diabetics can possibly improve early diagnostics of cardiovascular disease. Aim: This study will seek to establish the association between obstructive sleep apnea (OSA) and coronary calcification and heart failure in patients with diabetic kidney disease. The basic hypothesis of the study is that patients with diabetic kidney disease and concurrent OSA have a higher prevalence and severity of coronary calcification and heart failure compared to patients without OSA. Methods: Diabetic adult patients with scheduled check-ups at Steno Diabetes Center Aarhus, or Department of Renal Medicine on Aarhus University Hospital will be included in the study. Firstly, all included patients are screened for sleep apnea with the devices SomnoTouch® and ApneaLink®. Based on the sleep apnea determination; 40 patients with moderate-severe sleep apnea are compared with 40 patients without sleep apnea. In both groups, the patients are examined for calcification in the coronary vessels using a CT-scan while the function of the heart is examined by ultrasound (echocardiography). The stiffness of aorta is measured and performed using radial artery tonometry (SphygmoCor®). Furthermore, range of blood- and urine samples will be performed The perspectives are that patients with diabetes should be regularly evaluated for sleep apnea and that patients with moderate/severe sleep apnea should undergo further examination for cardiovascular disease even though the patients don't display any symptoms of either cardiovascular disease or sleep apnea.
Coronary intermediate lesions generally refer to lumen narrowing with diameter stenosis% (DS%) between 50% and 70% on angiography. Prognosis varies significantly among patients with intermediate lesions, and some lesions progress rapidly leading to adverse cardiovascular events. Therefore, accurate risk stratification is important and will help clinicians identify patients at high risk of adverse events. The aim of study is to identify independent risk factors for major adverse cardiovascular events (MACE) among patients with intermediate lesions. The study is a prospective, single-center, ongoing, observational study, which aims at enrolling approximately 1389 patients with intermediate coronary lesions. After enrollment, the following data are collected for each participant: baseline characteristics including demographics, clinical presentation, traditional risk factor, diagnosis and management; lesion characteristics assessed by coronary angiography; quantitative flow reserve; lab tests including blood chemistry, blood lipid, hemoglobin A1C, cardiac biomarker, BNP, et al. Patients are followed up at 2 year for primary outcome including death, myocardial infarction and repeat unplanned revascularization. A risk prediction score will be established and validated for major adverse cardiovascular disease at two-year follow-up.
Title: Combined Optical Coherence Tomography Morphologic and Fractional Flow Reserve Hemodynamic Assessment of Non-Culprit Lesions to Better Predict Adverse Event Outcomes in Diabetes Mellitus Patients COMBINE (OCT-FFR) Prospective Register To study the natural evolution of patients with at least one intermediate angiographic but non-hemodynamic significant stenotic lesion, in two subgroups of patients, with TCFA vs. no TCFA as detected by OCT imaging and to compare these two groups of patients with each other as well as to a subset of patients with FFR-positive and PCI-treated intermediate lesions on future MACE.