View clinical trials related to Coronary Disease.
Filter by:Aspirin is an effective medicine for prevention of heart attacks in patients with coronary artery disease and works by preventing clots from forming. In previous studies aspirin has been found to be ineffective in between 2% and 65% of patients but none of these studies have looked specifically at coronary artery disease patients in Ireland. This study is being done to identify the percentage of patients in Ireland whose aspirin is not working effectively and help identify factors that could be used to target interventions to increase aspirin's effectiveness in Irish patients.
Development of myocardial ischemia, and/or myocarditis would induce different changes in myocardial contraction behavior pattern,which maybe very subtle, and may not be detected by the 2D and m-mode echocardiography examinations. According to tissue Doppler imaging(TDI), they can be depicted by different models of echo with higher frame rates. In addition, many studies using TDI have significantly contributed of efforts to evaluate systolic and diastolic function and prognosis. This study assess the value of the indices of left ventricular function obtained by using TDI in patient with coronary artery disease(CAD). We hypothesized that TDI will add incremental value for regional wall motion abnormality of CAD and its prognosis.
The purpose of this study is to evaluate the efficacy of motivational interviewing-based coaching to increase physical activity to achieve guidelines recommendations for cardiovascular disease prevention.
Atherosclerosis is a progressive disease. Lipid lowering therapy was the standard treatment for patients with coronary artery disease. Studies indicated that coronary artery plaque progression had positive relationship with the plasma cholesterol level, and could be halted or reversed by intensive statin therapy (such as 20-40 mg/d atorvastatin). Ezetimibe plus statin could further lowered blood cholesterol level. Here the investigators hypothesize that same cholesterol lowering level by routing dose of atorvastatin or lower dose of atorvastatin plus ezetimibe could achieve the same effect on coronary artery plaque cessation or regression.
RATIONALE: Transradial coronary stenting is associated with less risk of access site complications and bleeding compared to femoral approach. Major bleeding post-PCI is a strong independent predictor of mortality and MACE. Depending of the antithrombotic regimen and access-site used, bleeding related to access-site represents 50-80% of the cases. Whereas transradial approach minimizes the risks of access-site bleeding, it has no impact on non-access site bleeding. Peri-procedural anemia is also an independent predictor of mortality and MACE. With femoral approach, bivalirudin compared to heparin ± glycoproteins IIb-IIIa has been associated with a significant reduction in access-site and non-access site related bleeding. In a post-hoc analysis of patients treated by transradial approach in ACUITY, there was a trend for non-access site bleeding (organ bleeding) with bivalirudin compared to heparin ± glycoproteins IIb-IIIa. HYPOTHESES: In patients at high-risk of peri-procedural bleeding, bivalirudin ± glycoproteins IIb-IIIa reduces the risk of bleeding compared to heparin ± glycoproteins IIb-IIIa. In patients at high-risk of bleeding and undergoing transradial PCI, bivalirudin significantly reduces the incidence of non-access site bleeding and peri-procedural anemia.
With the advances in multidetector computed tomography (MDCT) technology, CT angiography (CTA) of the coronary arteries using 64-slice or dual-source CT systems has evolved into a robust, alternative, noninvasive imaging technique to rule out coronary artery disease (CAD). Reported sensitivities and specificities of coronary CTA can compete with those of catheter angiography. Because CT is the major source of ionizing radiation in medicine, dual isotope myocardial perfusion scintigraphy and coronary CTA 16-, 64-slice MDCT and DSCT scanners are associated with the highest amount of radiation dose. Recently, a new generation of MDCT machines with even more detector row (320) has become clinically available. The maximum detector width of 16 cm enables the entire heart to be examined in a single rotation and within a single heartbeat and is expected to substantially reduce artifacts from breathing and body motion. Due to high volume coverage, 320-slice CT machines are able to perform a nonspiral, ECG-gated examination of the heart within a single breath-hold. The purpose of this study was to investigate the correlation of hemodynamic status of 320 MDCT, echocardiography, and coronary catheterization in patients who suspected coronary artery disease.
The purpose of this study is to assess the effects of Ezetimibe on coronary plaque volume in patients with acute coronary syndrome.
Due to rising importance of cardiovascular disease before and after renal transplantation we have changed our standard diagnostic procedure and perform stress echocardiography and myocardial scintigraphy. We would like to monitor these results and the outcome of our patients.
Intermittent pneumatic compression (IPC) of the lower extremities is a well-established technique for preventing deep vein thrombosis (DVT) and for treating venous stasis. IPC will be done in the home for 3 divided hours every day for 4 weeks. Lab tests, brachial ultrasound and MRI testing will be performed at baseline and after 4 weeks of daily IPC therapy. See detailed description for increase in healthy control subjects.
This study investigates potential protective effect of atorvastatin pre-treatment in patient with stable coronary artery disease undergoing percutaneous coronary intervention (PCI) on chronic statin therapy. Patients are randomized into two groups: atorvastatin pre-treatment group (80mg atorvastatin seven days before PCI) and control group (PCI without atorvastatin pretreatment, chronic statin treatment). Endpoint is myocardial infarction measured by troponin I and creatine kinase myocardial band.