View clinical trials related to Heart Defects, Congenital.
Filter by:To identify genetic and environmental risk factors for congenital cardiac disease.
OBJECTIVES: I. Determine the pharmacokinetics of exogenous liothyronine administered in children undergoing the modified Fontan procedure. II. Determine the liothyronine supplementation dose that counters the fall in serum liothyronine concentrations and provides the greatest potential myocardial benefit after the modified Fontan procedure. III. Evaluate the potential toxicity of exogenous liothyronine administered in children undergoing a modified Fontan procedure.
OBJECTIVES: I. Identify latent hypoparathyroidism in normocalcemic adult survivors with repaired conotruncal cardiac defects, by evaluating parathyroid gland secretory function after induced hypocalcemia. II. Determine the relationship of parathyroid hormone secretion to microdeletions in the same region of chromosome 22q11 as found in patients with DiGeorge anomaly.
There is an important need to maintain clinical skills, provide quality training and expertise, and provide an environment that stimulates ideas for clinical research. This study permits inpatient evaluation and management of patients with heart disease who do not qualify to participate in studies currently being conducted by the Cardiology Branch of the National Heart, Lung, and Blood Institute.
To evaluate the effects (up to one year of age) of indomethacin on the clinical course of patent ductus arteriosus (PDA) in premature infants (24 hours old or less) and to assess the relative merits of indomethacin and surgery in infants with persistent respiratory distress who were not treated early with indomethacin. Two concurrent trials were performed.
To compare the influence of two surgical anesthetic techniques, hypothermia with circulatory arrest or hypothermia with low-flow bypass perfusion, on neurologic functioning in infants undergoing heart surgery.
Adults with cyanotic congenital heart disease have elevated levels of plasma proatrial natruretic peptide (proANP) which most likely results in chronic dehydration, leading to reduced oxygen transport to tissues and shortness of breath with activity. The purpose of this study is to characterize adults with cyanotic congenital heart defects with respect to their body composition (water and fat-free mass) and resting metabolic rates. The study consists of several measures of how much body water, fat and lean tissue a subject has, and measures the number of calories the subject's body uses at rest. Adult subjects with cyanotic congenital heart disease will be recruited along with healthy noncyanotic control subjects matched for age, gender, and body weight.