Active clinical trials for "Coronary Disease"

To assess the feasibility in diabetics in a primary care setting of screening for NAFLD and advanced fibrosis, by using non-invasive magnetic resonance imaging (MRI) to estimate the hepatic proton density fat fraction (MRI-PDFF) and magnetic resonance elastography (MRE) to estimate hepatic stiffness.

The purpose of this study is to determine the range of expected PRUTest values in patients in the intended use population receiving dual antiplatelet treatment with aspirin and prasugrel (Effient®), or ticagrelor (Brilinta®).

To determine factors associated with repeat revascularization among adults aged 25 years and above within 5 years of first Percutaneous Coronary Intervention (PCI) at a tertiary care hospital.

The 6-minute walk test is a test of physical performance in physiotherapy with lungs and heart patients (Pollentier 2010). However, only 8 and 11% of patients in everyday test situations report a score of 7 or higher on a scale of 0-10 for effort (Jehn 2009). This study is intended to explore, based on grounded theory, why the majority of patients do not assess themselves according to the almost maximum performance.

Prospective, single-arm, multicenter study of patients with an intermediate pre-test probability of CAD and positive exercise stress tests referred for invasive angiography. Patients underwent an invasive diagnostic procedure (IDP) with measurement of fractional flow reserve (FFR) and index of microvascular resistance (IMR) in at least one coronary vessel. The objective was to determine the false discovery rate (FDR) of cardiac exercise stress tests with both FFR and IMR as references.

Use of vasopressor to maintain Mean Arterial Pressure on Cardio Pulmonary Bypass can lead to decreased cerebral flow and oxygenation in individual patients and this can be detected by means of cerebral oxymetry.

Coronary calcium hampers accurate evaluation of the coronary arteries with coronary computed tomography angiography (CCTA). A novel approach to potentially overcome this limitation is coronary calcium subtraction. The primary hypothesis of the study is: - Coronary calcium subtraction CCTA will improve diagnostic accuracy as compared to conventional CCTA on a per-patient basis

This study will evaluate the association of non-alcoholic fatty liver disease and coronary artery disease. All patients presenting for coronary angiogram will receive the following examination: Transient Elastography and Controlled Attenuation Parameter using the FibroScan blood examination including biochemical markers The results of non-invasive liver steatosis and fibrosis measurement are compared with the results of coronary angiogram concerning the presence or absence of coronary artery disease.

In contrast to the extensively studied coronary collateral circulation within the heart, clinical attention has been paid only anecdotally to extracardiac-to-coronary anastomoses. Usually this has been in the form of case reports giving account of angiographically visible anastomoses between the coronary circulation and the internal mammary artery (IMA), typically in the presence of a chronic occlusion of a coronary artery. In the anatomical literature,the most common types of extracardiac anastomoses include bronchial-to-coronary-artery and IMA-to-coronary-artery connections. Anastomoses between the IMA and the coronary circulation have been documented to occur in 12% of post-mortem patients with CAD. Importantly, hitherto existing observations typically have relied on visual methods insensitive for the adequate detection especially of structurally present but poorly functional anastomoses. On a diagnostic coronary angiogram, collaterals are visible only if the recipient vessel is subtotally stenotic or fully occluded, or can be rendered visible during coronary spasm or by temporary balloon occlusion of the recipient artery and simultaneous injection of contrast medium into the other arteries, respectively. Similarly, the macroscopic pathologic postmortem examination is likely to underestimate the true number of extracardiac coronary collaterals. The purpose of this study is to determine the in vivo prevalence and functional distribution of IMA-to-coronary collateral supply via both the right and the left coronary artery.

The main purpose of this study is to examine whether changes in biomarkers during exercise are related to coronary artery disease demonstrated by coronary angiography or echocardiography.