Congenital heart disease refers to a problem with the heart''s structure and function due to abnormal heart development before birth. Congenital means present at birth.Congenital heart disease(CHD) can describe a number...
Patent ductus arteriosus(PDA) is a condition in which a blood vessel called the ductus arteriosus fails to close normally in an infant soon after birth.(The word"patent" means open.).
If this opening fails to close naturally soon after the baby is born, the hole is called patent foramen ovale(PFO).A patent foramen ovale(PFO) allows blood to bypass the lungs.