View clinical trials related to Acute Coronary Syndromes.
Filter by:Study Objectives The following items will be prospectively assessed. Primary Endpoints 1. For patients presenting with clinical suspicion of Acute Coronary Syndromes (ACS), high sensitivity-cardiac Troponin I (hs-cTnI) provides improved diagnostic accuracy for ACS (including Acute Myocardial Infarction (AMI) and/or Unstable Angina (UA)) within the first two (2) hours after emergency department presentation when compared to currently available troponin assays. 2. For patients presenting with clinical suspicion of ACS, hs-cTnI provides improved prognostic information with regard to 180 day event rates of Major Adverse Cardiac Event outcomes, including cardiac deaths which are defined as all deaths except those that are clearly non-cardiac in nature (e.g. trauma), when compared to a currently available troponin assay. Secondary Endpoints 1. For patients presenting with clinical suspicion of ACS, using the rate of rise of hs-cTnI over time between presentation and 2 hours (delta hs-cTnI) allows for the differentiation between ACS and other disease states. 2. For patients presenting with clinical suspicion of ACS, hs-cTnI provides improved sensitivity for detecting AMI within the first two (2) hours after presentation when compared to a currently available troponin assay. 3. For patients presenting with clinical suspicion of ACS, hs-cTnI provides improved negative predictive value for ruling out ACS (AMI or UA) within the first 2 hours after presentation when compared to a currently available troponin assay. 4. For alternative endpoints of cardiac mortality, and for alternative censor time points of 30 days, 90 days, and 1 year, hs-cTnI provides improved prognostic information when compared to the currently available troponin assay. 5. In cases where the emergency physician has limited diagnostic confidence, hs-cTnI AMI diagnostic accuracy will be superior to local hospital standards for AMI determination. 6. In cases where the emergency physician has limited diagnostic confidence, the slope for the hs-cTnI between presentation and 2 hours will add diagnostic accuracy for ACS diagnosis over and above local hospital standards for ACS determination. 7. For patients presenting with clinical suspicion of ACS, the difference in diagnostic accuracy for ACS (including AMI and/or UA) using hs-cTnI measurement from time of onset of symptoms to emergency department presentation (e.g. 3 hours instead of 6 hours) will be evaluated to assess any variation.
The purpose of this study is to investigate whether a pure heart rate-lowering agent (Ivabradine) reduces vascular inflammatory stress in patients with acute coronary syndromes
Approximately 600,000 women are treated for acute coronary syndrome (ACS) annually in the US. ACS includes heart attack and a milder form called unstable angina. Many of these women have angiograms of which 14-39% show no "significant" coronary artery disease (CAD, cholesterol plaque accumulation in arteries of the heart). The remaining majority of women with ACS have cholesterol plaque buildup which appears severe enough on angiography to limit blood flow to the heart. It is difficult to advise women with heart attacks and no major heart artery blockages on what to do if chest pain happens again. Additional studies are needed to find out why this sort of heart attack happens and to help doctors understand how to treat patients who have this problem in the best possible way. Some women with heart attacks who have no major blockage in heart arteries have cholesterol plaque in the arteries of the heart cannot be seen on angiography but can be seen using a newer technique called intravascular ultrasound (IVUS). IVUS involves creating pictures of the artery walls using ultrasound (sound waves) from within the artery itself. In some women without major heart artery blockage, heart attack is caused by low blood flow due to disease of smaller blood vessels which cannot be seen on angiography or IVUS. This problem can be found using magnetic resonance imaging (MRI), which can show blood flow to the heart. MRI may also be used to show where the heart has been damaged. The pattern of damage could suggest that a heart attack in a woman, who has no badly blocked heart arteries, happened for one (or more) of these reasons or another reason. The Study of Women with ACS and Non-obstructive CAD (SWAN) will use IVUS and MRI to help determine the reasons for heart attacks in women with no major blockages in heart arteries.
The purpose of this study is to determine the efficacy of intravenous Exenatide therapy in hyperglycemic patients admitted to the coronary intensive care unit.
The primary aim was to evaluate the relief of chest pain during the first 30 minutes among patients who received metoprolol alone as compared with metoprolol plus morphine
This is a multi-centre UK study designed to evaluate if an educational intervention programme delivered to health care professionals can improve the use of evidence based treatments in the management of patients admitted to hospital with non-ST elevation Acute Coronary Syndrome. A total of 38 centres participated, half received the educational intervention. Patients were followed to hospital discharge. Patients were followed up at 6 months. Longer term follow up through the Office Of National Statistics will be performed.
The purpose of this study is to determine if the combination of aspirin plus clopidogrel is more effective than aspirin alone in preventing another heart attack, chest pain, stroke or death in people who have already had a heart attack that was treated with fibrinolytic therapy.
This is a 3-month, randomized, parallel-group study with 2 periods, comparing the efficacy and the safety of rosuvastatin 20 mg versus atorvastatin 80 mg in patients with an acute coronary syndrome (ACS).
The investigators hypothesized that complementary intracoronary streptokinase administration to primary percutaneous intervention in patients with acute myocardial infarction may provide limitation infarct size and improvement in left ventricular volumes and function in acute and late phases (6 months).
The purpose of this study is to evaluate whether 64-slice Computed Tomographic coronary angiography is useful for rapid diagnosis or exclusion of significant coronary artery disease in patients who present to the Emergency Department with chest pain.