Active clinical trials for "Coronary Artery Disease"

Cardiovascular diseases (CVD) are responsible, throughout the world, for high mortality rates and cardiovascular morbidity. Endothelial dysfunction is the earliest marker of clinical atherosclerosis development. Human studies show that endothelial and microvascular dysfunction are independent predictors of ischemic cardiovascular events and long-term prognosis. The study´s objective is to evaluate the endothelial and peripheral microcirculation changes by venous occlusion plethysmography (VOP), nailfoldvideocapillaroscopy (NVC) and serum biomarkers in patients with myocardial ischemia detected by scintigraphy and normal coronarography.

The aim of this study is to find strategy for treatment through comparing the cardiopulmonary exercise test parameters before and after cardiac rehabilitation in patients with chronic total occlusion of the coronary arteries.

ST elevation myocardial infarction (STEMI) patients affected by multivessels coronary artery stenosis, represent a clinical relevant problem. The management and prognosis of these patents are supported by few literature data. Therefore, in this study authors enrolled real world diabetic vs. non diabetic patients admitted for STEMI and associated to multi vessels coronary disease. Then these diabetics were divided in incretin users (6 months of incretin treatment before study enrollment) vs. never incretin users. In these patients authors studied all cause mortality, cardiac mortality, and major adverse cardiac events at 12 months follow up.

The purpose of this study is to understand routine use of FFR (Fractional Flow Reserve) and alternate indices in clinical practice. This study will determine the use and clinical outcome of FFR-guided PCI in patients presenting with either stable coronary artery disease, or in patients presenting with Acute Coronary Syndrome (ACS) on culprit and non-culprit lesions as well as during index and secondary procedures.

Quantitative Flow Ratio (QFR) is a novel method for evaluating the functional significance of coronary stenosis. QFR is assessed by calculation of the pressure in the vessel based on two angiographic projections. The purpose of the FAVOR II study is to evaluate the diagnostic accuracy of on-line QFR compared to 2D Quantitative Coronary Angiography (QCA) with FFR as gold standard.

Schizophrenia is a severe mental illness associated with excess mortality and affecting nearly 1% of the population. The average life expectancy for patients diagnosed with schizophrenia has been 55-60 years through the last generations in Denmark, while the general population has over the same period of time experienced an increase in life expectancy. As a result, the standardized mortality rate for patients with schizophrenia has increased markedly over the last three decades and is currently a major public health concern. Causes of death are mainly cardiovascular disease and patients diagnosed with schizophrenia has a relative risk of cardiovascular disease that is about 2-fold higher than the general population.

A randomised controlled trial to compare two strategies for the investigation of coronary artery disease at the time of angiography. Patients will be randomised to conventional angiography or additional, routine pressure wire assessment - measuring fractional flow reserve (FFR) - in all main vessels judged as being of sufficient vessel calibre to allow percutaneous coronary intervention (PCI) (experimental arm).

In-stent restenosis remains one of the most challenging problems in patients after coronary artery angioplasty. Angiographically, it is discovered in 10% of the patients after drug-eluting stent (DES) implantation. There are multiple factors causing restenosis, which can be divided into two major groups: first vessel-dependent (based on the vessel's tortuosity, dimensions and lesion's calcification, all leading to suboptimal stent expansion), and second dependent on the inflammatory processes caused by the intervention. Study objectives is the analysis of the possible correlation between allergy to metals utilised during the stent manufacturing (nickel, cobalt, chromium, molybdenum, tungsten) and in-stent restenosis occurence. The angiographic results of stent implantation, and in-stent restenosis will be assessed independently by two skilled interventional cardiologists, and in case of their discrepant opinions, the decision will be made on the basis of the third cardiologist. The tests will be applicated during the hospitalisation, then read after 48 hours and 72 hours, and subsequently interpreted by the skilled dermatologist, during the hospital stay or afterwards.

New CZT-based SPECT cameras are potentially capable of dynamic 3-D acquisition. Preliminary results suggested that dynamic acquisitions could allow the assessment of myocardial flow reserve using 99mTc-labelled perfusion tracers. The Flow-Heart study will assess the feasibility of myocardial flow reserve measurement by means of 99mTc-DTPA dynamic cardiac SPECT in 20 patients.

This study is a retrospective analysis where coronary arteriograms are being analyzed to determine whether the presence of tortuous coronary arteries correlate with any specific measures of left ventricular mass or left ventricular function on echocardiography.