View clinical trials related to Coronary Artery Disease.
Filter by:In this multicenter, international study we are evaluating two approaches to determine which coronary artery narrowings require stent placement in patients with multivessel coronary artery disease. Patients will be randomized to an angiographic strategy, where only coronary angiography is used to determine which lesions to stent or to a pressure wire strategy where fractional flow reserve, an index measured with the pressure wire, will be used to determine which lesions to stent. The primary outcome will be major adverse cardiac events at 1 year. A secondary outcome will be cost-effectiveness.
A randomized control trial (RCT) is planned to evaluate a web-based intervention (CardioFit) against usual care in increasing physical activity levels in patients with Coronary Artery Disease (CAD). We hypothesize that compared to usual care, participants in CardioFit will; a) have increased physical activity levels, b) will have a higher health-related quality of life at measurement dates and, c) will have greater improvements in psychosocial predictors.
The purpose of this study is to determine whether skeletonization of the internal thoracic artery leads to improved flow, increased length, improved sternal perfusion, and decreased pain and dysesthesia in patients undergoing coronary artery bypass surgery
There is growing evidence that antiretroviral therapy (ART) increases the risk of coronary heart disease (CHD) through metabolic side effects, such as dyslipidemia, insulin resistance, and type II diabetes. Prevalence of risk factors for CHD in HIV-infected individuals receiving ART in the Swiss HIV Cohort Study (SHCS) is high. This cluster randomised controlled trial is nested into the SHCS and will investigate whether physicians randomised to the routine provision of risk profiles from their patients receiving ART will improve the management of risk factors in HIV-infected patients compared to control physicians not routinely receiving such information. Risk profiles will be generated by the SHCS data center and provided to clinicians in all study centers.
Hemostasis at the arterial puncture site after percutaneous coronary interventions is achieved by either placement of a puncture closure device or by delaying sheath removal for hours to allow normalization of heparin induced anticoagulation. Both of these methods are far from ideal. Delayed sheath removal poses a risk of recurrent bleeding, hematoma formation and results in decreased patient mobility while the safety of closure devices has been called into question by several recent reports. Due to the lack of definitive data, the arterial access site management varies considerably between physicians and among institutions. The proposed study will evaluate the safety and efficacy of arterial closure devices to achieve hemostasis compared with immediate sheath removal after protamine administration followed by direct compression after percutaneous coronary intervention procedures.
The primary objective is to evaluate the use of the AngioGuard™ device combined with the Bx Velocity™ on patient outcome at one month.
The primary objective is to evaluate if use of the AngioGuard™ XP improves myocardial reperfusion after PTCA as assessed by ST segment resolution at the end of PTCA.
Context: Sirolimus-eluting-stents have improved the benefits of percutaneous interventions in native coronary arteries reducing the occurrence of restenosis and repeated revascularization, however saphenous vein grafts have been always excluded form randomized trials. Objective: To evaluate the angiographic and clinical impact of sirolimus-eluting-stents with respect to bare-metal-stents in degenerated vein grafts. Design: Double-blind randomized controlled non-industry-sponsored trial. Setting: A single-center tertiary-care referral hospital. Patients: All patients are randomly allocated to sirolimus-eluting-stent implantation or the corresponding bare-metal-stent. All patients are followed clinically and repeated angiographic follow-up is performed in all at 6-months. Main outcome measure: Primary end-point is 6-months angiographic in-stent late loss. Secondary end-points include: binary angiographic in-stent and in-segment restenosis, intravascular-ultrasound-measured neo-intimal hyperplasia volume and all the clinical events (death, myocardial infarction, target-lesion and target-vessel revascularization).
Cardiovascular disease is a complex multifactorial and polygenic disorder that is thought to result from an interaction between a person's genetic make up and various environmental factors. Although many studies have revealed that several genetic variants increase the risk of cardiovascular disease, the results of these studies remain controversial. The purpose of this study is to identify polymorphisms that confer susceptibility to cardiovascular disease and to clarify the adequacy of reported susceptibility gene polymorphisms. To complete this purpose, we will prospectively study over 5,000 local residents in whom relationship between these polymorphisms and occurrence of cardiovascular disease over 5 years.
Patients receiving BNP or nitroglycerin (IV) during the angioplasty procedure. 24 h after the procedure, vascular reactivity will be re-examined using the brachial artery flow-mediated dilatation study. Blood assays for ET-1, pro-BNP, and various inflammatory markers will be checked before and 24 h after the procedure. It is our hypothesis that endothelial function will be better in the BNP treated patients compared to the NTG treated patients