View clinical trials related to Acute Myocardial Infarction.Filter by:
In patients with acute ST-elevation myocardial infarction (STEMI), 40-60% have multi-vessel disease with an increased cardiovascular morbidity and mortality. Although it is not recommended to revascularize noninfarct lesions during the acute intervention, recent investigations suggest the opposite and show improved outcome after direct revascularization of noninfarct lesions. It is undesirable to risk procedure-related complications by treating noninfarct lesions without impaired flow. It is currently unknown whether pressure guided revascularization of noninfarct lesions in the acute phase improves outcome compared to the current guidelines. The iMODERN trial aims to compare an iFR-guided intervention of noninfarct lesions during the acute intervention with a deferred stress perfusion CMR-guided strategy during the outpatient follow-up, to determine the optimal therapeutic approach for STEMI patients with multivessel lesions.
The main purpose of this study is to build a multi-center, prospective and regionally representative acute myocardial infarction(AMI) cohort，and build a study platform for heart failure caused by AMI; To explore the 1 year incidence rate of heart failure after AMI given the optimized treatment and the treatment model affecting the incidence rate of heart failure, and finally to reduce the incidence rate of heart failure by 5%.
This study will compare clinical outcomes of immediate stent implantation with deferred stent implantation(4-10days after primary angiography) for patients presented with acute myocardial infarction due to left main coronary artery occlusion.
Long-term beta-blocker therapy has not been investigated in contemporary randomized clinical trials in patients with myocardial infarction and normal heart function. The aim of this study is to determine whether long-term treatment with oral beta-blockade in patients with myocardial infarction and preserved left ventricular systolic ejection fraction reduces the composite of death of any cause or new myocardial infarction..
Background: The plant-derived omega-3 fatty acid alpha-linolenic acid (ALA, 18:3-n-3) may reduce the risk of atherosclerotic cardiovascular disease, including incident myocardial infarction, ischemic stroke and peripheral artery disease. However, the results of previous studies have been inconsistent. Objectives: To investigate the associations between dietary intake of ALA, adipose tissue content of ALA, and the risk of the major atherosclerotic cardiovascular diseases incident myocardial infarction, ischemic stroke and subtypes, and peripheral artery disease. Methods: This project will be based on data from the Danish cohort study Diet, Cancer and Health which consisted of 57,053 men and women at recruitment between 1993 and 1997. Dietary intake of ALA will be assessed using a validated semiquantitative food-frequency questionnaire and adipose tissue content will be determined with the use of gas chromatography analyses of adipose tissue biopsies collected at baseline. Also, detailed information on lifestyle factors, medical history and anthropometri was collected at baseline. Incident cases have been identified through national registries and the diagnoses have previously been validated. Analyses of dietary intake of ALA will be analysed using a traditional cohort design, whereas analyses on adipose tissue content of ALA will be analysed based on a case-cohort design. Hazard ratioes with 95% confidence intervals will be used to describe the associations between the exposure variables and the outcome variables of interest.
This study will compare the microcirculatory resistance (IMR) of infarct-related artery (IRA) in patients who underwent immediate versus deferred stenting during percutaneous coronary intervention (PCI) for acute myocardial infarction.
Patients with acute ST-segment elevation myocardial infarction (STEMI) have an elevated risk of stroke, most of which are cardio-embolic in origin as a result of left ventricular (LV) thrombus formation. Anterior-wall location of a MI, in particular, can lead to the complications of LV aneurysm and/or thrombus, which some estimate occurs in approximately up to one-third of individuals within the first 2 weeks following an anterior MI. In the absence of anti coagulation, the risk of embolization in patients with a documented LV thrombus has been reported to be between 10 and 15 percent . Although there are no randomized trials evaluating the efficacy of anticoagulation in patients with an LV thrombus after MI, observational studies provide substantial supporting evidence for the recommendation to anticoagulate patients with documented LV thrombus in order to reduce the risk of embolization. The observation that most events occur within the first three months from the MI forms the basis for the recommendation that anticoagulant therapy should be started early and continued for at least three to six months after myocardial infarction. Currently the practice guidelines recommend anticoagulation after MI only in certain settings such as the presence of LV thrombus or atrial fibrillation. To date there are no data on the use of novel oral anticoagulants (NOACS) for stroke prevention in the setting of LV thrombus after acute MI. The proposed aim of this randomized open label non inferiority clinical trial is to assess whether apixaban is as effective as VKA for the treatment of LV thrombus after acute ST segment elevation MI. Population: Patients with evidence of LV thrombus as assessed by trans-thoracic echocardiography (TTE) 3 to 7 days post admission for acute ST-elevation MI Intervention: The patients will be randomly assigned to treatment with apixaban or s.c enoxaparin 1mg/Kg BID followed by dose-adjusted warfarin to achieve a target international normalized ratio (INR) of 2.0 to 3.0 for 3 months. The study Outcomes are the presence of LV thrombus as assessed be echo, major bleeding, and stroke or systemic embolism and death from any cause.
This is a national multi-center, prospective surveillance study in patients with suspected acute coronary syndrome. Eligible patients must present to one of the participating Emergency Departments within 24 hours from the time of symptom onset. Approximately 2000 patients >18 and <85 years of age are planned to be enrolled. Upon enrollment in the Emergency Department, a venous blood sample will be obtained from each patient for analysis. The patient's diagnostic work-up, treatment and disposition will continue per the standards of the treating institution. Results will be recorded for ECGs, any cardiac biomarkers measured at the site and any follow-up cardiac objective tests performed for evidence of coronary artery disease and/or myocardial damage (exercise treadmill, coronary angiography, cardiac thallium or technetium scintigraphy, etc). The Principal Investigator at each site will evaluate the results of the diagnostic cardiac tests performed for that patient to determine whether each patient enrolled at their site has a final diagnosis of ACS. The status of each patient will also be assessed at 1 month and 6 months after enrollment for intercurrent Major Adverse Cardiac Events (MACE), including myocardial infarction, cardiac revascularization and death.
Compare the analytical and clinical performance of hs-cTnI and hs-cTnT assays for the diagnosis of acute myocardial injury and myocardial infarction in patients presenting to the emergency department in whom serial cTnI measurements are obtained on clinical indication.
The objective of this trial is to evaluate the safety and effectiveness of therapeutic hypothermia, using the ZOLL Proteus IVTM System, as an adjunctive therapy for patients presenting with acute anterior myocardial infarction (AMI) and undergoing percutaneous coronary intervention (PCI).