Congenital heart defects (CHDs) are heart conditions that are present when a baby is born. CHDs affect nearly 1 in 100 births every year in the United States and are the most common type of birth defect. In fact, today, it is estimated that more than 2 million children and adults are living with a CHD in the U.S.
How do these defects happen?
Heart defects develop in the early weeks of pregnancy when the heart is forming, often before you know you’re pregnant. Some defects are diagnosed prenatally using ultrasound and some are identified after birth. We’re not sure what causes most congenital heart defects, but certain things like diabetes, lupus, rubella, obesity and phenylketonuria may play a role. Some women have heart defects because of changes in their chromosomes or genes. If you already have a child with a CHD, you may be more likely to have another child with a CHD.
Becoming pregnant with a CHD
When a woman with a CHD becomes an adult and decides to start a family, there may be concerns about how her heart defect may impact her pregnancy. Most women who have congenital heart disease do well and have healthy pregnancies. However, because your heart has much more work to do during pregnancy, the extra stress on your heart may be a concern. Women with a CHD have a higher risk of certain pregnancy complications such premature birth.
Preconception counseling can help. Be sure to talk to your medical team, including your cardiologist before trying to conceive, about potential complications that may arise.
Learn what you need to know before and during pregnancy, and for labor and delivery.
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