
Percentage of Secondary Prevention Patients Treated to Their LDL-C Targets
HyperlipidemiasAtherosclerosis4 moreA cholesterol/lipid profile screening project of high risk patients with hyperlipidaemia (secondary prevention) who already receive cholesterol-lowering therapy. Lipid profile and rate of patients who are treated to target (which is <100mg/dl for patients with high risk and <70mg/dl for patients at very high risk) are screened (office-based specialists). The doctors therapy decisions after the screening and possible reasons for these decisions will be documented. Our aim is to evaluate dosing habits, to evaluate how many patients are treated to their LDL-C target and to underline the importance of treating patients to their cholesterol targets.

Platelet Rich Plasma Study in Lower Extremity Bypass Surgery
AtherosclerosisThe use of platelet rich plasma will decrease wound infection postop.

Carotid Atherosclerotic Disease Following Childhood Scalp Irradiation
AtherosclerosisBackground: During the first half of the 20th century, scalp irradiation was a standard treatment for induction of epilation in children suffering from Tinea Capitis. These children are now more than 50 years old and the aim was to investigate the possible association between their childhood low dose irradiation exposure and development of carotid atherosclerotic disease in adulthood. Methods: The study included 145 individuals treated by irradiation in their childhood, and 150 matched control subjects with no history of irradiation. B-mode ultrasound imaging and US Doppler were used to measure carotid and femoral stenosis and Intima-Media Thickness (IMT). Blood samples were taken for lipid profile and homocysteine evaluation.

Premature Coronary Atherosclerosis in Scleroderma
SclerodermaThe purpose of this trial is to study the proportion of scleroderma patients who suffer from asymptomatic coronary atherosclerosis compared to healthy controls.

Understanding the Genetic Basis of Atherosclerosis and Peripheral Arterial Disease
Peripheral Vascular DiseasesAtherosclerosis, a condition in which fatty deposits build up along the inner walls of arteries, can occur throughout the body. The purpose of this study is to examine the possible genetic differences that may influence where atherosclerosis occurs.

A U.S Post Approval Study Evaluating the SYNERGY XLV (MEGATRON) Stent System
AtherosclerosisHeart Diseases3 moreThis is a post-market, standard of care, real-world observational study to assess the clinical outcomes of the SYNERGY XLV (MEGATRON) Coronary Stent System for the treatment of subjects with atherosclerotic lesion(s) ≤ 28 mm in length (by visual estimate) in native coronary arteries ≥3.50 mm to ≤5.00 mm in diameter (by visual estimate). This Post Approval study is a cohort associated with the Evolve 4.5/5.0 (SYNERGY LV) Post Approval Study, which is registered under ClinicalTrials.gov ID: NCT03875651.

Association of Mood With Risk for Atherosclerosis
Mood DisordersHypertension4 moreThe investigators will aim to determine the association of mood disorders (MDO) with preclinical and clinical cardiovascular (CVD) risk factors among children. The investigators will also aim to identify traditional and non traditional predictors of CVD risk among children with MDO.

Carotid Atherosclerosis in Patients With Aortic Coarctation
AtherosclerosisAortic CoarctationDespite aortic coarctation (CoA) repair these patients have cardiovascular complications and coronary artery disease is the most common cause of death.

Simultaneous Assessment of Coronary Microvascular Dysfunction and Ischemia With Non-obstructed Coronary...
Coronary Microvascular DysfunctionCoronary Microvascular Disease4 moreCoronary Microvascular Dysfunction has been consistently shown to play a considerable role in pathophysiology of Ischaemia with non-obstructed coronary arteries (INOCA). While the both diagnoses are individually related to remarkably worse outcome, there is no available method to simultaneously determine INOCA-CMD endotypes in vessel level, during the invasive diagnosis. The investigators hereby hypothesize that, combined intracoronary electrocardiogram (IC-ECG) (considering the high sensitivity and specificity of IC-ECG for studied vessel-territory) and intracoronary doppler can simultaneously and successfully identify vessel specific coronary microvascular dysfunction and resulting ischemia, which may potentially enable immediate diagnosis and endotyping of CMD-INOCA subgroups during the invasive assessment of first ANOCA episode, obviating the need for further ischemia-studies such es SPECT, which have considerably higher costs and lower sensitivity. Major coronary arteries of patients aged between 18 - 75 without obstructing coronary artery disease who have previously documented ischemia with non-obstructed coronary arteries (INOCA) via coronary angiogram and myocardial perfusion scan will be evaluated simultaneously with IC-ECG and intracoronary Doppler during rest and under adenosine induced hyperaemia. Performance of the combined system to identify Coronary Microvascular Dysfunction with structural and functional subgroups as defined by abnormal Coronary Flow Reserve (CFR) and Hyperemic Microvascular Resistance (HMR) and Ischemia in downstream territories of same vessel area (as defined by perfusion scan) is intended to be determined. The investigators also intend to interrogate the possible relationship between dynamic changes in IC-ECG parameters and invasively obtained intracoronary hemodynamic data.

Comparison of Cerebral Artery Pressure Gradient and Cerebral Blood Flow Measured by Arterial Spin...
StrokeIschemic1 moreThe goal of this observational study is to explore the ability of intravascular pressure gradients to identify hemodynamic disturbance in patients with intracranial atherosclerotic diseases (ICAS). The main questions that aim to answer are: The correlation between intravascular pressure gradient and cerebral blood flow (CBF) The threshold for intravascular pressure gradients to predict hemodynamic disturbance in ICAS Patients will undergo intravascular pressure measurement and arterial spin labeling (ASL) for CBF during pre- and post-operation respectively.