Active clinical trials for "Coronary Artery Disease"

This study will evaluate the 3 drug-eluting stents presently marketed for intervention in the coronary artery with respect to the complications that may occur in case it becomes necessary to retract the stent during the intervention. It has been noted that stents carrying a drug for local application may be more difficult to retract than the more smooth bare metal stents.

The study is designed to determine whether a dual isotope protocol is equivalent to a single isotope in the diagnosis of myocardial ischemia and infarction using MYOVIEW SPECT imaging.

COAT-platelets stands for collagen and thrombin stimulated platelets, which are two things in the body that make platelets stick together. These platelets may be important in the initiation of a heart attack (myocardial infarction). A chemical in the body called serotonin maybe responsible for COAT-platelet production. Paroxetine causes a significant reduction in platelet serotonin and therefore may have value in preventing heart attacks. Therefore, the current study is designed to determine whether paroxetine will decrease COAT-platelet production in normal volunteers and patients with cardiovascular disease.

To determine if postmenopausal hormone replacement therapy in women following coronary bypass surgery would reduce the occurrence of graft occlusion and delay the development of graft atherosclerosis.

Cardiological examination is one of the major directions in nuclear medicine for detection of myocardial ischemia in patients with suspected coronary artery disease. In Caen, they constitute 20% of the activity of nuclear medicine. It is evaluating a new versatile innovative technology (IQ-SPECT) for performing rapid nuclear cardiological examinations (4 minutes) and quality on a SCINTI-CT camera for correcting the mitigation. This technical solution IQ-SPECT was made available to the nuclear medicine department in August 2011. To date, apart from the work on heart ghosts and one publication in abstract form in 2009, no other study have been published. The goal of the study is to study the technical performance of the innovative technology IQ-SPECT during a SCINTI-CT imaging in patients suspected of coronary disease .

Watching football matches could cause increased blood pressure and heart rate induced by catecholamines and thus increase the incidence of cardiovascular events. However, no studies have evaluated the responses of blood pressure and heart rate in soccer spectators. This study evaluates the hemodynamic response in Brazilian soccer fans suffering from coronary artery disease during a dispute over a game of your favorite team.

The objective of this study is to compare reduced-dose prasugrel and standard dose clopidogrel in patients older than 74 years with ACS, including non-ST-elevation (NSTEACS) and ST-elevation (STEMI) patients, undergoing early PCI. The primary endpoint of the trial will be the one-year composite of (all-cause)death, myocardial infarction, stroke and re-hospitalization due to cardiovascular reasons or bleeding.

The prediction of extent and risk profile of coronary atherosclerosis based on clinical evaluation and non-invasive techniques. Detailed analysis of plaque volume, plaque composition, risk plaque features and shear stress (WSS) changes during lipid lowering therapy (rosuvastatin 40mg) from 3D vessel reconstruction. Prediction of changes in coronary arteries based on changes in non-invasive examinations. Examination of WSS influence on atherosclerosis development and changes of WSS during lipid lowering therapy.

This study is being done to determine if Ranolazine treatment improves coronary microcirculation function among patients with coronary microcirculation dysfunction. We are also looking to learn if symptomatic improvement of chest pain during treatment with Ranalozine is related to improved coronary microcirculation function.

The recently introduced Computed tomography (CT) scanner, Discovery CT750 HD (GE Healthcare, Milwaukee), incorporates a battery of innovations aimed at improving diagnostic image quality, evaluating perfusion and assessing for scar, in an effort to address the current shortcomings of Computed tomographic coronary angiography (CTCA) in patients with significant coronary artery disease. The new scanner will use a novel method of scanning (Cardiac Gemstone Spectral Imaging - Cardiac GSI) and image reconstruction (Adaptive Statistical Iterative Reconstruction- ASIR) as opposed to standard definition 64-slice CT Multi-detector row computed tomography(MDCT)and Filtered Back Projection (FBP) used by the conventional CT scanners. The Cardiac GSI protocol enables the scanner to acquire images at two different x-ray energies almost simultaneously, which can be post-processed to selectively reduce beam hardening artefacts and delete materials with specific attenuating properties from the images, such as coronary calcium. ASIR offsets the potential increase in radiation dose required for Cardiac GSI scanning. This will potentially result in images of higher diagnostic quality with an equivalent or perhaps lower dose of radiation compared to present technology. Furthermore, it is hypothesised that dual-energy acquisition may improve the accuracy of the assessment of perfusion. Although initial in-vitro results are encouraging, this technology has not been rigorously assessed with regards to its feasibility and diagnostic quality, limiting its applicability in routine clinical practice. This assessment will require a trial comparing the accuracy of Cardiac GSI CTCA with that of Invasive coronary angiography (ICA) for anatomical assessment of stenosis, Myocardial Perfusion Imaging with Single Photon Emission Computed Tomography (MPI-SPECT) for assessment of perfusion and Cardiac Magnetic Resonance (CMR) for assessment of myocardial scar. We have designed a pilot study in this regard which will help us assess the feasibility of the scan protocol and provide data to power a larger study to assess the diagnostic remit of Cardiac GSI scanning in the assessment of patients with high-risk of significant coronary artery disease and myocardial scar.