Active clinical trials for "Myocardial Infarction"

In the FINE 75+ study, 307 Non ST Elevation Myocardial Infarction (NSTEMI) patients, 75 years old or older, were included between September 2009 and June 2010. The purpose of this observational study (FINE75+5) is to describe these patients, especially regarding the following variables: cardiovascular risk, co-morbidity and frailty, and to assess the prognostic value of frailty on 5-year outcomes. We hypothesize that frailty is independently associated with 5-year mortality.

This project aims to assess the ability of cardiac imaging (cardiac MRI and Doppler-echocardiography) post-processing tools to predict a combined end-point of intraventricular thrombosis, silent brain infarcts, clinical stroke and peripheral arterial embolism in patients with first acute myocardial infarction and ventricular dysfunction.

Treatment of patients who have had a heart attack with drugs that prevent formation of blood clots has been shown to reduce the patient's risk of subsequent cardiovascular events such as heart attack, stroke, and death. Because new drugs have increased treatment options, the development of tests that can guide treatment should improve treatment selection and further reduce the risk of cardiovascular events as well as bleeding. This study is designed to assess the value of new tests. It is a prospective study that will enroll patients who have had a heart attack. Blood will be taken during hospitalization for a heart attack (1 day after their heart attack) and a second time 6 months later during an ambulatory clinical visit. Investigators will perform biochemical tests on the blood that assess the likelihood of making blood clots. One tablespoon of blood will be taken at each time. Taking this amount of blood poses no risk to the participant. Investigators will ask the participant whether they have had bleeding or cardiovascular events during the initial evaluation, the ambulatory follow-up at 6 months, and during a telephone interview 1 year after enrollment. During their 1 year of participation, investigators will review medical records and record information in a manner that protects the identity of all participants. We hypothesize that the biochemical test results will be similar at baseline and 6 month follow-up and that these biochemical tests will identify patients at greater risk of cardiovascular events and bleeding. Treatment of participants will not be altered by their participation in this study.

To characterize and estimate the incidence rate of new-onset atrial fibrillation (NOAF) in patients with acute myocardial infarction (MI). To explore the prognostic influences of NOAF on MI patients' clinical outcomes. To further investigate the impact of NOAF associated characteristics on patients' clinical outcomes eithier during hospitalization or follow-up period.

The study aims to assess for the first time, through the application of innovative technologies (micro-CT), important characteristics of aspirated thrombi (such as their volume and their density), which might be linked to certain clinical outcomes, in patients presenting with STEMI and referred for primary Percutaneous Coronary Intervention (PCI). To this end, a methodology for the exact estimation of thrombus burden by measuring the volume and the density of aspirated thrombi will be developed. After being aspirated using dedicated catheters, thrombi will be preserved in formalin and their volume and their density will be calculated with the use of micro-CT. Having a better resolution than conventional computed tomography, micro-CT will allow us to create 3D models of aspirated thrombi from a series of x-ray projection images. These 3D models will be further analyzed in order to find the volume and the density of aspirated thrombi. Shape analysis of the surface of aspirated thrombi and potential differences in their structure will also be assessed. Correlation of these variables with clinical parameters and angiographic outcomes will be attempted. Thus, a risk-stratification model will be developed combining: Clinical and laboratory data, Angiographic parameters, Data regarding the volume, the density and the composition of aspirated thrombi. This model will enable the stratification of the cardiovascular and cerebrovascular risk of patients and the identification of who will benefit from thrombus aspiration, providing a personalized approach in treating patients with STEMI.

The prognostic significance of cardiac magnetic resonance (CMR) derived parameters of myocardial and microvascular injury has not been fully elucidated yet in non-ST-Elevation myocardial infarction (NSTEMI) patients. In the present study the investigators aim to comprehensively investigate the prognostic significance of CMR in a prospective, multicentre registry cohort of NSTEMI patients undergoing early percutaneous coronary intervention (PCI). CMR will be performed within the first week following the index event. The primary endpoint is defined as a composite of death, reinfarction, and new congestive heart failure (major adverse cardiac events) at 12 months.

This study occurs in two phases. Phase 1 involves initial item development and measurement validation of a new tool for identifying hospitalized patients at high risk for preventable readmission. Primary tasks include item construction and content validation, data collection, analysis, and instrument refinement. Phase 2 involves administering the refined instrument to a new group of patients to determine final item content for the instrument, its factor structure, and its predictive validity.

This a prospective observational study including patients with ST-segment elevation myocardial infarction undergoing cardiovascular magnetic resonance for clinical reason during the index hospitalization. This local registry stemmed from multi-center european registry on cardiovascular magnetic resonance

The aim of this study is to measure how different people respond to mental stress. The investigators will measure if there are differences in cardiovascular responses to mental stress among different groups of subjects. In one part of the study the investigators will compare the cardiovascular responses to mental stress between healthy women and healthy men. In another part of the study, the investigators will compare the cardiovascular responses to mental stress between women with apical ballooning syndrome and healthy post-menopausal women. The investigators hypothesize that healthy men will have an increased vascular response to and decreased endothelial function in response to to mental stress, compared to health women. Furthermore, the investigators hypothesize that women with apical ballooning syndrome will have an increased vascular response to and decreased endothelial function in response to mental stress.

The purpose of this study is to evaluate left ventricular systolic ejection fraction and anterior or apical akinesis 1 month and 3 months after a myocardial infarction treated with primary PCI to determine whether improvement at 1 month differs from improvement at 3 months.