View clinical trials related to Heart Diseases.
Filter by:To acquire a better understanding of the spontaneous clinical behavior of paroxysmal tachycardia by studying epidemiologic features of symptomatic tachycardia patients.
To determine whether there were differences in the prevalence and extent of atherosclerotic lesions in the coronaries and aortas between Alaskan natives and non-natives, and whether the extent of the lesions was related to omega-3 fatty acids in blood and tissues.
To evaluate the ability of heart rate variability to identify myocardial infarction patients at high risk of dying, particularly from sudden cardiac death.
To examine the natural histories of coronary artery disease and hypertension in cohorts of Black and white men of identical education and occupations.
To study the absolute concentrations and percent of fatty acids in 480 plasma samples from an age and sex stratified random sample of subjects in the Framingham Offspring Study in order to calculate the distribution of fatty acids in this general population and to determine the inter-relationships among levels of fatty acids, in particular w3 and w6 fatty acids, with lipoproteins and apolipoproteins.
To conduct a five-year follow-up of the population of Gubbio, a town in north central Italy, in order to determine the relationship of baseline sodium-stimulated lithium countertransport to subsequent change in blood pressure and incidence of hypertension.
To develop a comprehensive protocol for assessing cardiovascular reactivity to stressors, for use in epidemiological and clinical investigations of cardiovascular diseases in healthy populations.
To determine whether a population with isolated systolic hypertension (ISH) had a higher prevalence of carotid disease than a normotensive population matched for age and sex, and to determine specific risk factors for carotid disease.
To develop natural history data regarding the incidence, clinical course, prognosis, and effects of treatment with anti-viral and immunosuppressive agents on HIV-associated heart disease. A second part of the study evaluated a number of possible mechanisms underlying the development of HIV heart disease.
To detect by Doppler echocardiography the incidence of cardiac abnormalities in HIV-positive patients in a prospective, longitudinal study.