View clinical trials related to Heart Defects, Congenital.
Filter by:Diastolic function is poorly studied in children with congenital heart disease. This is mainly due to the lack of validated techniques. Cardiac MRI offers two advantages compared to echocardiography: 1. accurate measurements of ventricular volumes and mass; 2. tissue characterization. The main advantage of echocardiography is a better temporal resolution which allows the study of short events like early relaxation. Overall there is a lack of studies correlating different echocardiographic and MRI parameters of heart function in pediatric populations with congenital or acquired heart diseases. This study will address specific questions on specific groups of patients that might bring more insight into chamber interaction and cardiac function. This study hypothesizes the following: - Atrial enlargement is a marker of chronic increase in filling pressures and 3D echo might be the best method for follow-up. - Cardiac remodeling associated with chronic loading results in changes in diastolic properties related to changes in cardiac mass and volume. This is related to changes in cardiac mechanics influencing diastolic parameters. Especially the influence on twisting and untwisting will be studied. - Regional myocardial fibrosis and scarring may account for regional systolic and diastolic dysfunction with possible prognostic impact
The purpose of this study is to test the accuracy of 7 indicators in screening congenital heart defects (CHD) in all newborns (symptomatic or asymptomatic) to determine whether these indicators could be applied in the nationwide newborn CHD screening. The investigator's hypothesis is that 7 indicators are effective in neonate CHD screening with the acceptable accuracy.
Bosentan is a kind of dual endothelin receptor antagonist.The purpose of this study is to investigate if Bosentan therapy can modify the outcome of children with functional single ventricle.
Neurally adjusted ventilatory assist (NAVA) is a new mode of mechanical ventilation that delivers ventilatory assist in proportion to neural effort. It was a controlled randomized single-center prospective study in order to explore the efficacy of this new mode of mechanical ventilation after corrective open-heart surgery for congenital heart disease.
Multi-center, observational, U.S.-based longitudinal program. Data will be collected prospectively for 3 years. Individual physician feedback will be provided on data collected with the purpose of improving the management of patients - quality enhancement research initiative (QuERI) process from adult patients enrolled with a history of repaired Congenital Heart Disease (CHD).
The purpose of this study is to examine the role of genetic variation in the oxidative stress response on critical perioperative and short-term outcomes after neonatal heart surgery. The goals will be to determine 1) if the oxidative stress pathway is an important one for therapeutic intervention in neonates with severe congenital heart defects and 2) if variants in the oxidative response pathway can be used to identify patients at increased risk for adverse outcomes.
Statins have been used to low cholesterol to prevent and treat coronary artery diseases. It was also reported that statins could protect endothelial function and cardiac function during coronary artery bypass graft. The investigators recent found simvastatin reduced myocardial injury during noncoronary artery cardiac surgery in single medical center. The investigators further investigate that whether simvastatin can protect myocardium during noncoronary artery cardiac surgery with cardiopulmonary bypass and improve cardiac function with long term use postoperatively in two medical centers.
Background: - People with congenital heart disease may develop heart failure earlier that those who do not have the disease. One theory to explain this is that the heart s own blood supply may be different in people with congenital heart disease. Problems with this blood supply can severely damage the heart. This damage can be studied with a heart imaging test called a cardiac magnetic resonance imaging (MRI) scan. Researchers want to use this type of scan to look at the blood supply to the heart in people with congenital heart disease. Objectives: - To learn more about the blood supply to the heart in people with congenital heart disease. Eligibility: - Individuals at least 18 years of age who have heart defects caused by congenital heart disease. Design: - Participants will be screened with a physical exam and medical history. Blood and urine samples will be collected. - Participants will have a cardiac MRI scan to look at the blood flow to the heart. - Participants will also have a heart stress test to measure heart function during exercise. - Other imaging studies of the heart may be performed to collect more information on heart function.
The key objective of the Leuven growing-into-deficit (GID) follow-up-study is to test the hypothesis that children with a congenital heart disease (CHD) show more neurocognitive impairment at the second follow-up at 7 years old than at the first follow-up at the age of 4, compared to healthy controls.
The aim of the study is to evaluate the value of postoperative troponin in the prediction of mid term and long term mortality and morbidity in children with congenital heart disease undergoing cardiac surgery.