Active clinical trials for "Myocardial Infarction"

The objective of this study was to determine the prognostic utility of established risk predictors following acute ST elevation myocardial infarction in patients over 75 years of age.

The hypothesis is that single-shot imaging of myocardial infarction is possible in atrial fibrillation using MRI late enhancement technique

To evaluate the relation of retinal microvascular characteristics to subclinical cardiovascular disease, clinical disease, and their risk factors in the Multi-Ethnic Study of Atherosclerosis (MESA) cohort.

To evaluate whether the long-term use of oral contraceptives, after discontinuation, was associated with an increased incidence of first nonfatal myocardial infarction among women above the age of 50.

To determine the natural history of coronary heart disease in the biethnic community of Corpus Christi, Texas.

To extend mortality followup through 25 years for two cohorts of men in the Multiple Risk Factor intervention Trial (MRFIT): the 361,662 men screened and the 12,866 men randomized, and to pursue the general aim of elucidating unresolved research issues on the epidemiology, natural history, etiology, prevention, and control of major chronic diseases, particularly cardiovascular and neoplastic diseases and diabetes.

To conduct an analysis of the epidemiology of coronary heart disease (CHD) in Blacks using data collected from the 'Survival and Ventricular Enlargement (SAVE) Following Myocardial Infarction' study.

To study the entire population of Olmsted County, Minnesota, including all age categories, to examine the secular trends in coronary heart disease (CHD) mortality, myocardial infarction (MI) incidence, and natural history, including MI severity, case fatality and post-MI morbidity. Also, to examine the time trends in the prevalence of CHD at post-mortem because of the uniquely high autopsy rate in Olmsted County.

Iron has been proposed to contribute to atherogenesis in humans by facilitating the oxidation of lipoproteins. This observational study will evaluate the association between frequency of blood donation - expected to be associated with relatively reduced body iron stores in frequent donors - and carotid atherosclerosis. The primary outcome variable will be whether the presence and extent of asymptomatic carotid atherosclerosis as measured by ultrasound is greater in infrequent (less than or equal to 1 donations/year greater than or equal to 5 years) vs. frequent (greater than or equal to 4 donations/year greater than or equal to 5 years) blood donors. Body iron stores, lipid and hemostatic parameters, nitric oxide formation, inflammatory parameters, and markers of vascular oxidative stress will be analyzed as secondary outcome measures. Laboratory analysis and ultrasound testing will be performed blinded to the patient's phlebotomy and iron status. Sixty frequent (n=40 males greater than 40 y/o, n=20 females greater than 50 y/o) and 60 infrequent (n=40 males greater than 40 y/o, n=20 females greater than 50 y/o) blood donors will be recruited for this study from the Department of Transfusion Medicine, W. G. Magnuson Clinical Center. All donors will be assessed for study eligibility and cardiovascular risks during the screening visit. The presence of atherosclerotic lesions by carotid ultrasound and secondary outcome parameters will be assessed during a second visit.

To analyze the relationship between the clinical data and the outcomes of STEMI patients.