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What teachers should know about congenital heart defects, and what they can do to help students with the condition succeed in school.

Heart defects happen when there's a problem with a baby's heart development during pregnancy. Most heart defects can be treated during infancy.

Tricuspid atresia is a congenital heart defect. A baby born with tricuspid atresia often has serious symptoms soon after birth because blood flow to the lungs is much less than normal.

Heart murmurs are very common, and most are no cause for concern and won't affect a child's health.

Some birth defects are minor and cause no problems; others cause major disabilities. Learn about the different types of birth defects, and how to help prevent them.

This minimally invasive procedure helps doctors do diagnostic tests on the heart and even treat some heart conditions.

Learn about conditions that may affect the heart and circulatory system.

Health problems that can affect the heart.

Tetralogy of Fallot (TOF) is a combination of problems caused by a birth defect that changes the way blood flows through the heart.

Arrhythmias are abnormal heart rhythms usually caused by an electrical "short circuit" in the heart. Many are minor and not a health threat, but some can indicate a more serious problem.