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Conditions

Understanding your child's condition is an important step on your treatment journey. Learn more about causes, symptoms and diagnosis for a variety of conditions, as well as unique treatments and research being performed at Children's National.

Tricuspid Atresia

Tricuspid atresia (TA) is a congenital (present at birth) heart defect that occurs due to abnormal development of the prenatal heart beginning during the first eight weeks of pregnancy.

Truncus Arteriosus

Truncus arteriosus is a heart defect in which there is an abnormal connection between the aorta and pulmonary artery. Learn more about this condition.

Ventricular Septal Defect (VSD)

A ventricular septal defect is an opening in the ventricular septum, or dividing wall between the two lower chambers of the heart known as the right and left ventricles.

Transposition of the Great Arteries (TGA)

Transposition of the great arteries (TGA) is a congenital heart defect in which the large vessels that take blood away from the heart to the lungs, or to the body, are improperly connected.