Do Heart Defects Run in Families?
Heart defects are among the most common birth defects. While some heart defects are present at birth, others may not be identified until later in life. The question of whether heart defects run in families is a common concern for those with a diagnosed heart defect or for those concerned about their risk of developing one.
Heredity
In some cases, heart defects may be the result of heredity. According to the American Heart Association, genetic mutations can cause certain heart defects, such as tetralogy of Fallot, atrial septal defect and pulmonary valve stenosis. These genetic mutations can be inherited from a parent or passed on from generation to generation.
Environmental Factors
In addition to heredity, environmental factors can also play a role in the development of heart defects. Exposure to certain viruses or toxins during pregnancy can increase the risk of a baby being born with a heart defect. Poor nutrition and smoking during pregnancy can also increase the risk.
Risk Factors
There are some risk factors that can increase the likelihood that a person may be born with a heart defect. These include having a family history of congenital heart defects, being born to a mother over the age of 35, or having certain genetic disorders such as Down syndrome or Marfan syndrome.
Screening Tests
For those with a family history of heart defects, it is important to talk to a doctor about screening tests that can be done before or during pregnancy. These tests can help identify a potential heart defect before a baby is born, allowing doctors to provide the necessary care and treatment.
Conclusion
While heart defects can run in families, it is important to remember that not every person who has a family history of heart defects will necessarily develop one. There are many environmental and lifestyle factors that can affect the risk of having a heart defect as well. For those with a family history, it is important to talk to a doctor about possible screening tests and other measures that can be taken to reduce the risk.