Congenital Heart Defects Learning Center

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Congenital heart diseases are abnormalities of the heart's structure and function caused by abnormal or disordered heart development before birth.

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Patent Ductus Arteriosus
Patent ductus arteriosus (PDA) is a condition where the ductus arteriosus, a blood vessel that allows blood to bypass the baby's lungs before birth, fails to normally close after birth. The word "p...
Ventricular Septal Defects
Ventricular septal defect describes one or more holes in the wall that separates the right and left ventricles of the heart. Ventricular septal defect is one of the most common congenital (present ...
Tetralogy of Fallot
Tetralogy of Fallot refers to four types of heart defects present at birth (congenital).
Patent Foramen Ovale (PFO)
While a baby grows in the womb, there is a normal opening between the left and right atria (upper chambers) of the heart. If this opening fails to close naturally soon after the baby is born, the h...

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