Atresia (ah-TREE-zhah) is a condition in which a baby is born with a missing or closed valve or tube somewhere in his or her body.
Pulmonary atresia is a rare defect in which a baby is born with an abnormally developed pulmonary heart valve (which is between two of the heart's chambers) that doesn't open. This prevents blood from flowing through the heart and into the lungs to receive oxygen. Treatments include medications and surgery.
Air, blood, bodily fluids, and waste products travel throughout the body in a system of vessels, tubes, and chambers that are often separated by valves. When a child is born with atresia, it means that a valve is missing or a tube is closed off. This interrupts the normal flow of blood, fluid, waste, or air, which can lead to a number of complications.
Most kinds of atresia are serious and can be fatal if they go untreated. Treatment usually involves surgery while the child is still an infant.
Atresia can affect many body parts, including the nose, ears, organs, digestive tract, and heart. The types of atresia are named for the body parts they affect:
Most kinds of atresia can be treated successfully with surgery; some cases may require more than one operation.
All A to Z dictionary entries are regularly reviewed by KidsHealth medical experts.
|National Heart, Lung, and Blood Institute (NHLBI) The NHLBI provides the public with educational resources relating to the treatment of heart, blood vessel, lung, and blood diseases as well as sleep disorders.|
|American Academy of Pediatrics (AAP) The AAP is committed to the health and well-being of infants, adolescents, and young adults. The website offers news articles and tips on health for families.|
|American College of Surgeons The website of the American College of Surgeons provides consumer information about common surgeries such as appendectomy.|
|American Academy of Family Physicians This site, operated by the American Academy of Family Physicians (AAFP), provides information on family physicians and health care, a directory of family physicians, and resources on health conditions.|
|If Your Child Has a Heart Defect Congenital heart defects are relatively common, affecting almost 1 in every 100 newborns in the United States.|
|Congenital Heart Defects Congenital heart defects involve abnormal or incomplete development of the heart. Learn about the different types of congenital heart defects.|
|Birth Defects Birth defects are relatively common. Some are minor and cause no problems; others cause major disabilities. Learn about the different types of birth defects, and how to help prevent them.|
|When Your Baby Has a Birth Defect If your child has a birth defect, you don't have to go it alone - lots of people and resources are available to help you.|
|When Your Baby Is Born With a Health Problem If you're expecting a baby, it's important to understand that certain health problems and complications can't be prevented, no matter how smoothly the pregnancy goes.|
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