Active clinical trials for "Heart Diseases"

Setup CT images database of congenital heart disease.

To determine whether or not women with a history of having a baby with intrauterine growth retardation (IUGR) was more likely to have risk factors for cardiovascular disease versus women with a pregnancy not complicated by IUGR.

In this study, the investigators wish to use images obtained from standard of care cardiac MRI's performed at Children's Healthcare of Atlanta and transfer the images to a different computer in order to analyze them with a new computer. The investigators are hoping to better their understanding and management of complex congenital heart disease.

Cardiac elastography is a new technique to analyze strain and strain rates in many organ systems, including the heart. In this study, cardiac elastography derived from the analysis of raw radiofrequency data obtained from a conventional clinical echocardiograph system will be compared to processed information that comes from the same echocardiograph system. The purpose of this study is to determine if cardiac elastography can accurately determine strain and strain rates as compared to more conventional means.

To continue a registry of World War II veteran twins maintained by the National Academy of Sciences-National Research Council (NAS-NRC).

To supplement the fourth National Health and Nutrition Examination Survey protocol to include data on the common heart, vascular, lung, and blood diseases.

To improve the predictive validity of Structured Interview assessments of Type A behavior by comparing interviewer techniques in the Multiple Risk Factor Intervention Trial (MRFIT) and the Western Collaborative Group Study (WCGS). To assess whether there were interviewer differences in the predictiveness of Type A behavior and its components for coronary heart disease incidence in MRFIT and WCGS and if so, to assess whether the interviewer differences in disease predictiveness were related to interviewer stylistics.

To continue a study of premature coronary heart disease mortality among men and women aged 35-54 in Allegheny County, Pennsylvania.

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 acquire a better understanding of the spontaneous clinical behavior of paroxysmal tachycardia by studying epidemiologic features of symptomatic tachycardia patients.