Truncus arteriosus is a heart defect that is present at birth (congenital). It occurs when there is an abnormal connection between the aorta and pulmonary artery. Normally, the aorta and the pulmonary artery are separate. Read on to learn more.

Transposition of the great arteries (TGA) is a type of congenital heart defect. This means that your baby is born with it. In this condition, the large blood vessels that carry blood from the heart to the lungs and body aren’t connected as they should be.

How asthma will affect a child throughout their lifetime varies, depending on the child.

Total anomalous pulmonary venous return (TAPVR) is a congenital heart defect. Read on for details about this condition, including symptoms, diagnosis, and treatment.

Tricuspid atresia (TA) is a heart defect present at birth (congenital). It occurs when the tricuspid valve doesn’t form right during fetal heart development. This happens during the first 8 weeks of pregnancy. Read on to learn details about this condition.

Syncope is a brief loss of consciousness and muscle tone caused when not enough blood gets to the brain. Syncope is commonly called fainting. In most children, it’s usually harmless. But in a few children, syncope is serious. This is usually because of a heart problem, or less often a neurological problem.

Rheumatic heart disease is a condition that causes permanent damage to the heart valves.

Asthma is a long-term (chronic) lung disease that causes your child's airways to become sensitive to certain things (triggers).

Pulmonary stenosis is a birth defect of the heart (congenital). It can happen when the pulmonary valve doesn’t develop as it should during the first 8 weeks of pregnancy. The pulmonary valve connects the right ventricle to the pulmonary artery.

Patent ductus arteriosus (PDA) is a heart defect found in the days or weeks after birth. Read on to learn about symptoms, diagnosis, and treatment options.