View clinical trials related to Infarction.
Filter by:Myocardial infarction (MI) causes loss of myocytes and may lead to loss of ventricular function, morbidity and mortality. The most effective therapy is early reperfusion of the ischemic myocardium by percutaneous coronary intervention (PCI). Reperfusion limits myocardial ischaemic necrosis, but also induces inflammation, oxidative stress and calcium overload: a process referred to as reperfusion injury leading to necrosis and apotosis. Glucagon Like Peptide-1 (GLP-1) is an incretin hormone that has shown to activate anti-apoptotic enzymes, reducing reperfusion injury. GLP-1 agonists have been demonstrated to be cardioprotective in several animal studies and in a single small non-randomized clinical study. In this pilot study we will assess the safety and efficacy of GLP-1 receptor agonist Exenatide infusion compared to placebo in patients with an acute myocardial infarction undergoing primary PCI. A total of 40 patients will be included in this single centre prospective randomised placebo controlled two-arm pilot study. Patients who are to undergo a primary PCI for a first acute ST elevation myocardial infarction are randomly assigned to placebo or Exenatide 5ug bolus in 30 minutes, followed by a continuous Exenatide infusion of 20ug/ 24 hours for 72 hours. Blood samples are obtained for assessment of enzymatic infarct size and Exenatide levels. Side effects of Exenatide are stringently monitored. Cardiac function will be measured using Cardiac Magnetic Resonance Imaging (CMRI) and 3D echocardiography at 1 week and 4 months post MI. Infarct size will be assessed by means of the final infarct size at 4 months post MI as a percentage of the area at risk at 1 week post MI. Furthermore we will compare the RNA profile of both groups.
The International Registry of Acute Coronary Syndromes registry study in Transitional Countries (ISACS-TC) is both a retrospective and prospective study which was designed in order to obtain data of patients with acute coronary syndromes, and herewith control and optimize internationally guideline-recommended therapies in these countries Further study details as provided by the CINECA http://isacs-ct.cineca.org/
Chronic kidney disease (CKD) affects 10-18% of the adult population and is becoming recognized as one of the most serious disorders causing increased risk for cardiovascular disease and death. In patients with ischemic heart disease 26% have increased creatinine, which rises to 40% if patients also have diabetes mellitus. Risk increases as renal function diminishes, and just slowing the rate of decline in renal function would have a tremendous impact on health and morbidity. This association is commonly termed the Cardiorenal Syndrome, though it is caused by a much more complex interplay between major pathogenetic pathways such as glucose metabolism and diabetes, systemic and tissue inflammation, tissue metabolism, coagulation, mineral metabolism, sympathetic activation, renin-angiotensin-aldosterone system activation, endothelial dysfunction, lipid metabolism, fetal programming etc. Karolinska Institutet recently merged basic and clinical researchers in all these fields, creating a Karolinska Kardiorenal Theme Centre; ultimately aiming to explore the syndrome and provide improved care for the individual patient. The investigators road to success: - Creating a Biobank (blood, DNA, plasma) from the majority of all hosptalized patients with ACS in Stockholm county - Stockholmheartbank. - This Theme Center include all teaching hospitals associated with Karolinska Institutet; Danderyd University Hospital, Karolinska University Hospital and Södersjukhuset University Hospital. Together theses hospitals serve as emergency hospitals for 1.9 million people. The investigators are aiming at creating a biobank from all patients admitted for an acute coronary event (about 2.300/yr), which is a unique asset for molecular and genetic research as well as observational and intervention studies. - The investigators have access to the National registry with 100% coverage, that contains data on all patients admitted to Stockholms coronary care units since 1995. - To ensure translation in to clinical practice, most of the researchers are also MD:s, and several are clinically active. - The clinical network facilitates the development of novel therapies and translational research. - Steering groups for Education and a Clinical Practice implementation program.
Superselective IRA infusion of tirofiban may improve myocardial reperfusion and reduce bleeding complications in AMI patients.
Multivessel disease has been reported to occur between 40 and 60% of patients with ST-segment elevation myocardial infarction (STEMI) and has been associated to a worse prognosis. Multivessel revascularization offers a myriad of potential advantages as enhance of the collateral blood flow, greater myocardial salvage, the stabilization of other lesions that can be potentially vulnerable, and the achievement of a complete revascularization, factor that is associated with a better prognosis. On the other hand, the prolongation of procedural duration, the hazard of contrast induced nephropathy and the peri-procedural complications can limit the widespread of this practice. To date, very few observational studies have focused in the multivessel revascularization with disparity of results. Whereas ones have observed an increase of adverse cardiovascular events and thus not recommend it, others have shown neutral results. Stress echocardiography has been shown to be an adequate technique for the diagnosis of coronary artery disease and could be an appropriate tool for selecting the lesions that need to be revascularized because they induce large areas of ischemia. However, this technique has also limitations like the high operator-dependence. Therefore, the investigators sought to study if the complete multivessel revascularization of patients with STEMI treated by means of primary percutaneous coronary intervention (PCI) has an impact on prognosis compared to a strategy of treating only those non-culprit lesions that produce large areas of ischemia in a stress test.
The primary objective of this study is to characterize the morphological patterns of high frequency QRS components (HFQRS) in patients with acute myocardial infarction (AMI), including STEMI and NSTEMI, compared to patients without AMI.
In this study the investigators aim at comparing the effect on quality of life and the cost-effectiveness of a structuralised sick-leave program compared to usual care sick leave management in patients after an acute non ST myocardial infarction(NSTEMI).The investigators hypothesize that a structuralised sick-leave program after an acute NSTEMI is cost-effective without a negative effect on quality of life compared to usual care management in this patient group.
Intracoronary bolus Abciximab single is non-inferior to intravenous and continuous 12- hours infusion in the size reduction of infarction on cardiac magnetic resonance in Non-ST elevation Myocardial infarction.
Several recent trials (1,2) suggest that all STEMI patients receiving fibrinolysis in non-PCI centres should be routinely transferred for elective early PCI within 24 hours from hospitalization, with no additive risk of major bleeding complications or other severe adverse events compared standard therapy. These results in favour of a routine invasive strategy in STEMI patients suggest a potential change to the current approach of awaiting the response to treatment in patients receiving fibrinolysis, and draw the attention to the potential need for an appropriate network organization with adequate first hospitalization treatment (spoke) and prompt transfer to centres with 24/7 PCI capabilities (hub). The recent ESC (3) and ACC (4) guidelines on STEMI are consistent with the early ESC PCI Guidelines, recommending that angioplasty after fibrinolysis should be performed within a time-window ranging between 3 and 24 hours after successful lytic administration (level evidence IIA). The reason for the weighting of the recommendation is due to the heterogeneity of trial results with different planned-revascularization strategies, variable primary end-points definitions, and small individual trial sample sizes. Therefore, a consistent analysis of single patient dataset from all published randomized trials would be of value to better define the magnitude and duration of clinical benefit of the routine invasive strategy after lytic treatment as well as the potential optimal timing of such a strategy. The main aim of the OTTER meta-analysis is to define the benefits of immediate PCI after fibrinolysis for STEMI patients. Moreover, the OTTER meta-analysis will investigate the optimal timing of post-fibrinolysis elective revascularization.
In this trial, the investigators will evaluate the effect of thrombus aspiration followed by stent implantation in improving myocardial blush grade in patients with acute non-ST-elevation myocardial infarction compared to conventional percutaneous coronary intervention (PCI).