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  • How common is atrial septal defect

    • Atrial septal defect symptoms

  • Atrial septal defect size (mm)
  • Atrial septal defect pdf
  • Atrial septal defect pathophysiology
  • Atrial septal defect treatment in adults

    • Atrial septal defect pdf...

    About Atrial Septal Defect (ASD)

    What it is

    An atrial septal defect is a hole in the wall (septum) that divides the upper chambers (atria) of the heart. The hole can vary in size and may close on its own or require surgery.

    As a baby's heart develops during pregnancy, several openings in the wall divide the upper chambers of the heart (atria).

    These openings normally close during pregnancy or shortly after birth.

    Atrial septal defect in adults

    If one of these openings does not close, a hole remains, and it is called an atrial septal defect (ASD).

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    Keep Reading:How the Heart Works

    Occurrence

    About 13 of every 10,000 babies in the United States are born with an atrial septal defect.1This means that about 5,240 babies are born with an atrial septal defect each year.

    Signs and symptoms

    An atrial septal defect is present at birth, but many babies do not have any signs or symptoms.

    Signs and symptoms of a large or untreated atrial septal defect may include:

    • Frequent respiratory or lung infections
    • Difficulty breathing or shortness of breath when physically active
    • Tiring when f

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