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Atrial Septal Defect (ASD) in Children What is an atrial septal defect in children? The atrial septum is the wall between the two upper chambers of the heart (right and left atria). An atrial septal defect (ASD) is an abnormal hole in this wall. ASD is a heart problem that is

Pulmonary Atresia What is pulmonary atresia? Pulmonary atresia (PA) is a heart defect. It happens when the baby's heart doesn’t form as it should in the uterus. This can happen during the first 8 weeks of pregnancy. PA is a problem with the opening of the pulmonary valve. This

Tricuspid Atresia What is tricuspid atresia? Tricuspid atresia (TA) is a heart defect present at birth (congenital). It occurs when the tricuspid valve doesn’t form, or only partly forms. Normally the tricuspid valve is located between the right upper chamber (atrium) and the

Coarctation of the Aorta (COA) in Children What is coarctation of the aorta in children? Coarctation of the aorta (COA) is a heart defect that is present at birth (congenital). It means that the aorta is narrower than it should be. The aorta is the large artery that carries

Diaphragmatic Hernia in Children What are diaphragmatic hernias in children? A diaphragmatic hernia is a birth defect that occurs in about 1 in 2,500 newborns. It happens in a baby during pregnancy. In this condition, there’s an opening in your baby’s diaphragm. This is the

Total Anomalous Pulmonary Venous Return (TAPVR) What is total anomalous pulmonary venous return (TAPVR)? Total anomalous pulmonary venous return (TAPVR) is a congenital heart defect. This means that your child is born with it. It happens as the baby’s heart develops during the

Duchenne Muscular Dystrophy in Children What is Duchenne muscular dystrophy in children? Duchenne muscular dystrophy (DMD) is a genetic condition that weakens your child’s muscles. It is the most common muscular dystrophy, a kind of inherited muscle disease. DMD causes weakness

Intussusception in Children What is intussusception in children? Intussusception is a serious problem in the intestine. It occurs when 1 part of the intestine slides inside another part. The intestine then folds into itself like a telescope. This creates a blockage or obstruction

Gastroesophageal Reflux in Children What is gastroesophageal reflux in children? Gastroesophageal refers to the stomach and esophagus. The esophagus is the tube that connects the throat to the stomach. Reflux means to flow back or return. Reflux happens because the lower

Trisomy 13 and Trisomy 18 in Children What are trisomy 13 and trisomy 18 in children? Trisomy 13 and trisomy 18 are genetic disorders. They include a combination of birth defects. This includes severe learning problems and health problems that affect nearly every organ in the