
Mechanisms of Dysfunction and the Influence of Exercise on Cardiac and Musculoskeletal Function...
Congenital Heart DiseasePrimary Objective: To determine if impairments in cardiac and musculoskeletal function and metabolism exist in Fontan children. Secondary Objectives: To determine if impairments do exist, are they related to exercise capacity. To determine if a 12-week exercise training intervention improves cardiac and/or musculoskeletal metabolism. Hypothesis: The investigators hypothesize that abnormalities in cardiac and skeletal function are evident, influence exercise capacity, and can be improved with exercise training.

Study of Postoperative Nutritional Support in Cardiac Surgery.
Heart DiseasesThe purpose of this study is to determine whether postoperative nutritional support improves postoperative outcomes in cardiac patients with malnutrition .

The eSVS® Mesh Randomized Post-Market Study
Coronary Artery DiseaseMyocardial Ischemia6 moreThe purpose of this study is to evaluate patency rates of the external Saphenous Vein Support (eSVS) Mesh Saphenous Vein Grafts (SVG) and Control SVG at 3-6 months and 24 months.

MRI and Computational Simulation Cardiology Study
Congenital Heart DiseasePulmonary HypertensionThe purpose of this study is to (1) quantify cardiovascular anatomy and physiology using magnetic resonance imaging under both resting and exercise conditions in patients who have congenital heart disease and in age-matched normal volunteers, (2) use computer models to reproduce and simulate blood flow in these patients, and then (3) to combine the imaging data and computer models to estimate values which cannot be directly measured and to predict physiological changes induced by exercise and medical or surgical therapies.

Stress Reduction Intervention for Women With Ischemic Heart Disease
Ischemic Heart DiseaseThis is a single center, randomized controlled trial which will include women with ischemic heart disease to receive either a self-directed stress reduction program delivered through a smart-phone application or activity tracking only for the first month ("early SR intervention" and "delayed SR intervention", respectively). Patients will be monitored for 1 month for application use and step counts via telephone or email interview and/or collection of screen-captured data. Baseline questionnaires will be repeated at the end of one month to assess for all primary and secondary measures, at which time the control group (activity tracking only) will be introduced to the intervention program. The early SR intervention group will not receive a new intervention but will be encouraged to continue using the app. Data will be collected for an additional 2 months with all participants in both groups. After the three-month study period, the study will close with the collection of final questionnaire data.

MEOPA-coupled Hypnosis Versus MEOPA-standard Care in Transesophageal Echocardiography
Cardiac DiseasesThe primary purpose is to evaluate the impact of hypnosis coupled with MEOPA (Equimolar Mix-ture of Nitrogen Protoxide and Oxygen) on patient comfort when performing transoesophageal echocardiographies. Further studies on the use of MEOPA alone or the technique of hypnosis alone in the context of an TEE, would not be innovative in any way in view of previous studies or already in progress. However, service has led to perform TEEs several times by combining MEOPA and hypnosis. Doctors noted a clear reduction in induction time for hypnosis and satisfaction of the patient and operators. This association technique is very often used in pediatrics. According to one study, it seems that MEOPA increases the threshold of suggestibility and imagination. However suggestion and imagination are two essential notions of the hypnotic technique. To date, doctors have not found any other studies combining MEOPA and hypnosis for adults patients in the context of TEE. This leads to the following hypothesis: Is there a difference for the patient in terms of for the global management of pain and anxiety between an TEE performed under MEOPA with a standard support and TEE under MEOPA coupled with hypnosis with support standard? Secondary purposes are: Compare patients' feelings / opinions: patients who have benefited from hypnosis associated with MEOPA versus patients who have been treated with MEOPA alone. Compare patient stress: patients who have benefited from hypnosis associated with MEOPA versus patients who have benefited from MEOPA alone. Compare the operators' feelings / opinions: procedures that have been performed under hypno-analgesia and MEOPA versus standard procedures under MEOPA alone. Failed the TEE procedure

Colchicine in Postoperative Fontan Patients
Single-ventricleHeart DiseasesThe investigators found that there is inflammation in the chest drainage in patients after the Fontan operation. The investigators want to test the theory that Colchicine, an anti- inflammatory medication, can decrease the inflammation in the chest tube drainage after the Fontan operation, and can decrease the amount of time that patients having this surgery will have drainage.

Reveal Chagas: Clinical Evidence of the Implantable Cardiac Monitor in Patients With Chagas Disease...
Chagas DiseaseHeart DiseasesThe study "Reveal Chagas: Clinical Evidence of the Implantable Cardiac Monitor in Patients with Chagas Disease" is a prospective, multicenter, randomized study that is being conducted at several centers in Latin America with commercially available products. The primary study hypothesis is that patients with implantable cardiac monitors will have a shorter time to the decision to treat for electrical or arrhythmic disorders during the follow-up period. The geography includes Argentina and Colombia.

The Jackson Heart Study of Cardiovascular Disease Among African Americans
Cardiovascular DiseasesHeart Diseases4 moreThis is a prospective study of the environmental and genetic factors that influence the development of cardiovascular disease (CVD) in African American men and women. The cohort is a collaboration among multiple institutions (Jackson State University, Mississippi State Department of Health, Tougaloo College, and the University of Mississippi Medical Center), the National Institute on Minority Health and Health Disparities (NIMHD), and the National Heart, Lung, and Blood Institute (NHLBI).

Cold Heart Study: A Randomized Pilot Trial of Surfactant Therapy
Congenital Heart DiseaseHypoplastic Left Heart SyndromeThis clinical trial is being done to see if giving surfactant (Curosurf®) will decrease the number of days that infants will need a breathing tube, decrease the days in the critical care unit and decrease the number of days needed in the hospital. The primary hypothesis for this study is that there will be fewer days needed on mechanical ventilation and improved lung compliance and pulmonary gas exchange.