Active clinical trials for "Myocardial Infarction"

This is a double-blind, sham-controlled clinical study to evaluate the safety and feasibility of AMI MultiStem therapy in subjects who have had a heart attack (Non-ST elevation MI).

With no prior prospective study to demonstrate the benefit of an early post-discharge follow-up appointment in reducing readmission rates in the post-myocardial infarction (MI patient population, we propose to conduct the first randomized, prospective trial to better elucidate the association between early and standard follow-up on readmission rates. The investigators hypothesize that unlike heart failure or advanced valvular disease patients, the benefit of early outpatient follow-up in reducing readmission of post-MI patients will be less clear. Thus, the investigators primary aim will be to determine the effect of early outpatient follow-up post-discharge on 90 day all-cause readmission rates (exclusive of planned readmissions known at the time of discharge). Secondary aims are to describe 1) causes of readmissions within 90 days, 2) any cardiovascular-related complications and any deaths that occur from discharge through 90 days, 3) 30-day readmission rates and 4) median time to readmission among those readmitted. Finally, the investigators will examine the distribution of demographic, clinical and socioeconomic characteristic according to readmission vs. no readmission. The investigators do not expect to have sufficient endpoints for full predictive modeling, but believe this exploratory work will provide a foundation for future studies. The investigators postulate that the design and methodology of our current study could be used to answer similar questions in other subsets of patients.

This trial was performed to evaluate the safety and the efficacy of G-CSF based stem cell therapy in patients with AMI. MAGIC Cell-1 trial enrolled patients with acute and old myocardial infarction, and had two groups of cell infusion, and G-CSF alone. MAGIC Cell-2 trial enrolled patients with acute myocardial infarction presented within 12 hours after onset of chest pain who underwent successful primary PCI. We randomized patients into the G-CSF group and the control group.

Cardiogenic shock is currently the main cause of death after myocardial infarction and 50% of deaths occur within the first 48 hours. To limit the extent of the myocardial necrosis is the primary objective of the treatment in this context. The symptomatic treatment of the ventricular failure alone does not allow a reduction of mortality. The immediate prognosis is not significantly improved by the current standard of care, including early revascularisation and intra-aortic balloon counterpulsation. In order to improve the immediate prognosis, it seems necessary to limit the irreversible myocardial lesions and the systemic inflammatory response induced by an extended myocardial infarction (complement activation, cytokines production, iNOS expression, etc.). These objectives may be reached by a more extended utilization and availability of circulatory assistance methods. The investigators propose to compare, in a randomised multicenter study, two treatments of the myocardial infarction with cardiogenic shock among 44 patients: Standard Treatment versus ECLS-Impella +/- standard treatment. In June 2007, an amendment replaced the device ECMO by the use of Impella intra-thoracic pump. This amendment has been approved by the Ethic Committee on July 7, 2007. In March 2009, a new amendment has been approved by the EC. This amendment allowed to revise the number of patients to enroll (reduced to 44) and this lead us to modify also the primary endpoint : variation of BNP levels between H0 and H24 (H0 defined as the nearest value of BNP level obtained before the randomization).Showing a more important BNP levels decrease in the experimental group compared to standard treatment group, the investigators obtain an indirect argument to show a superior efficacy of the tested strategy.

The purpose of this study is to determine if stem cell therapy with your own cells (autologous cells) delivered with a catheter to regions of the heart with poor blood flow will be safe and if it will relieve your chest pain, increase the blood flow, and/or improve the cardiac contractility (function) by regenerating blood vessels in your heart.

The i-STAT High Sensitivity Troponin I (i-STAT hs-TnI) test is an in vitro diagnostic test for the quantitative measurement of cardiac troponin I (cTnI) in whole blood or plasma samples using the i-STAT 1 Analyzer or i-STAT Alinity Instrument in point of care or clinical laboratory settings. The hs-TnI test is intended to be used as an aid in the diagnosis of myocardial infarction (MI). The objective of this study is to evaluate the clinical performance of the i-STAT hs-TnI test using the investigational i-STAT hs-TnI Cartridge with the i-STAT 1 Analyzer and i-STAT Alinity Instrument for subjects presenting to the emergency department (ED) with chest discomfort or equivalent ischemic symptoms suggestive of Acute Coronary Syndrome (ACS). The clinical evaluation will use prospectively collected whole blood specimens from subjects presenting to the ED with chest discomfort or equivalent ischemic symptoms suggestive of ACS.

The goal of this international multicenter study is to develop a scoring system to identify the risk of developing cardiogenic shock (CS) in patients suffering from acute coronary syndrome (ACS) utilising artificial intelligence. Study hypothesis: A complex machine learning (ML) model utilising standard patient's admission data predicts the development of cardiogenic shock in patients suffering from acute myocardial infarction better than standard prediction models. Study objectives: The primary objective of this study is to further improve predictive parameters of #STOPSHOCK model for prediction of development of cardiogenic shock in patients suffering from acute myocardial infarction. The secondary objective of this study is to develop a new predictive model for the development of cardiogenic shock in patients suffering from acute myocardial infarction based on larger combined cohort of patients utilising advanced ML algorithms, continuous model performance monitoring and continual learning.

The CERAMICS study is designed to more clearly delineate the current care of acute myocardial infarction with cardiogenic shock (AMICS) patients who are treated with mechanical circulatory support (MCS) devices in the United States with significant experience in MCS, all of whom have the capability of MCS escalation on-site. Study enrollment is targeted at 120 patients at 20 hospital sites, evaluating clinical outcomes, and focusing on outcomes MCS escalation decision making and ICU level management.

The delivery of timely and appropriate care is crucial for patients with heart attacks. Blocked arteries need immediate intervention to restore blood flow. However, the intervention to open the artery is only available in large, regional hospitals. There are only 18 such hospitals across Ontario. Patients with heart attacks in smaller hospitals, where the majority of patients present, require transfer for specialized services. The smartphone application being evaluated in this study is meant to help with communication between doctors to arrange transfer of such patients. The current model for communication is based on fax machines or non-secure text messages. Additionally, these are not easily accessible for most physicians, so decisions to transfer patients may be based on incomplete information. Unnecessary transfer, treatments, and procedures expose patients and healthcare providers to undue risk. Smartphone technology is well integrated into clinical practice and widely accessible. The proposed solution being tested is secure and leverages the accessibility of smartphones. Emergency physicians can use this to quickly, securely, and accurately transmit information ensuring faster and appropriate decision making for transfers.

The aim of the registry is to investigate the clinical performance of the Magmaris Magnesium Stent in STE-ACS and NSTE-ACS patients.