View clinical trials related to Coronary Disease.
Filter by:The acute coronary syndrome (ACS) without ST elevation is a frequent pathology. The main evolutionary risk of these patients is the coronary thrombosis and its self complications. The platelets aggregation plays a major role in the physiopathology of the ACS. The therapeutic arsenal of the anti-thrombosis essentially resting on aspirin and heparin has been reinforced lately by the inhibitors of the glycoprotein anti GP IIb/IIIa. The profit of these products in the ACS with or without ST elevation, associated or not to coronarography, has clearly been demonstrated. This profit is more marked when patients are at high risk of complications. Thus, the use of an anti GP IIb/IIIa is recommended among patients at "high risk" for whom a coronarography is planned, in the last international recommendations of the European Cardiology Society (ESC), the American Heart Association and the American College of Chest Physician. Otherwise, some authors have proposed An early invasive strategy based on coronarography with discordant results. The ideal delay of realization of this coronarography is unknown. It varies according to the studies between 2.5 hours to 48 hours. Once again, patients at high risk seem to benefit the more of such a strategy if it is set precociously. Objective To compare an invasive strategy associating an early administration of tirofiban and a coronarography achieved in the 6 hours after the randomization to a conservative strategy in a population of high risk patients with ACS without ST elevation. Design Multicentric, prospective, randomized study.
The primary objective of this study is to evaluate the safety and effectiveness of a direct stenting technique compared to conventional stenting with pre-dilatation strategy using the CoStar Paclitaxel-eluting coronary stent system for the treatment of a single de novo lesion in a native coronary artery ≤ 25 mm long in a native coronary artery 2.5-3.5 mm diameter.
The main objectives of this study are define frequency of plaque shift phenomenon and impact on flow dynamics in the side branch as assessed by intravascular ultrasound, and evaluate acute and late side branch ostial vessel reaction to balloon angioplasty and drug-eluting stents.
Patients who have stents placed in their coronary arteries require treatment with at least two medications to prevent platelets from sticking to the stainless steel stent and forming a blood clot that can result in a heart attack. The 2 anti-platelet medications used for most patients with stents are aspirin and clopidogrel (Plavix). These are usually prescribed for 1-12 months (the length of time depends on the number and types of stents implanted). Although the typical long-term dose of clopidogrel is 75 mg by mouth once daily, a larger dose (known as a loading dose) is usually given at the start of treatment to help the medication take effect more quickly. Prior to January 2006, most patients at the Beth Israel Deaconess Medical Center (BIDMC) who were undergoing PCI and who had not already been taking clopidogrel would receive a loading dose of 300-600 mg of clopidogrel in the cardiac catheterization procedure room immediately after the angioplasty and stenting portion of the procedure. However, several recent studies suggest that administering clopidogrel 600 mg at least two hours prior to an angioplasty procedure can reduce the rate of complications afterwards (especially reducing the chances of detectable damage to the heart muscle). The main purpose of this study is to see whether giving a loading dose of clopidogrel 600 mg to outpatients scheduled to undergo cardiac catheterization with coronary angiography can decrease the risk of procedure-related complications during the 14 days following the cardiac catheterization compared to a strategy of giving clopidogrel 600 mg after the procedure only to those who undergo angioplasty. We will focus our attention particularly on detecting damage to heart muscle following angioplasty (which might be expected to improve with a loading dose of clopidogrel before the procedure) and on bleeding and other groin complications (which might worsen with clopidogrel loading before the procedure). The drug clopidogrel has been approved by the Food and Drug Administration (FDA) for use in patients with a recent or ongoing heart attack, narrowings in major blood vessels outside the heart, or recent stroke with a loading dose of 300 mg followed by 75 mg once daily. It has been used in several large studies with a loading dose of 600 mg without a significant increase in major adverse effects. However, we do not yet know if it is useful or safe when given as a loading dose of 600 mg before cardiac catheterization for outpatients with stable symptoms and who are not thought to be in the midst of a heart attack.
To determine the safety and feasibility of same day discharge after elective coronary percutaneous intervention in a selected stable patient population. The hypothesis to be tested is that in an appropriately selected stable coronary artery disease population post percutaneous coronary intervention, early discharge is safe and feasible.
This trial aims to demonstrate the non-inferiority of the CI-CMS-005 Coronary Stent System to the study device as well as to the TAXUS™ Express2™ Drug-Eluting Coronary Stent System in in-segment late lumen loss at 9 months after treatment of a single de novo lesion per vessel.
The purpose of this clinical research study is to compare Apadenoson and adenosine to treadmill exercise stress SPECT MPI
This study was designed to test the hypothesis that direct injection of bone-marrow cells in the heart may increase the number of blood vessels, ameliorating the heart's performance, and relieving patients from symptoms like angina and/or shortness of breath.
To evaluate the effect of the drug Montelukast on the brachial artery's function. By giving a drug like Montelukast, which blocks the effects of inflammation in the lungs arteries and controls asthma, we hope to see positive effects in other arteries such as in the heart.
To compare computed tomography (CT) images (pictures) of the coronary arteries using the General Electric (GE) LightSpeed VCT scanner with x-ray coronary angiography in patients referred for an x-ray coronary angiography.