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Conditions

Understanding your child's condition is an important step on your treatment journey. Learn more about causes, symptoms and diagnosis for a variety of conditions, as well as unique treatments and research being performed at Children's National.

Atrial Septal Defect (ASD)

An atrial septal defect is an opening in the atrial septum, or dividing wall between the two upper chambers of the heart, known as the right and left atria.

Atrioventricular Canal (AV canal or AVC)

Atrioventricular canal defect (AV canal) is a congenital (present at birth) heart defect. Other terms used to describe this defect are endocardial cushion defect and atrioventricular septal defect (AVSD).

Aortic Stenosis

Aortic stenosis is a heart defect that may be present at birth (congenital) or it may develop later in life (acquired).

Patent Ductus Arteriosus (PDA)

PDA is a heart problem frequently noted in the first few weeks or months after birth, characterized by the persistence of a normal fetal connection between the aorta and the pulmonary artery.

Pulmonary Atresia

Pulmonary atresia (PA) is a heart defect that occurs due to abnormal development of the fetal heart during the first eight weeks of pregnancy.

Pulmonary Stenosis

Pulmonary stenosis is a congenital (present at birth) defect that occurs due to abnormal development of the fetal heart during the first eight weeks of pregnancy.

Tetralogy of Fallot (TOF)

Tetralogy of Fallot is a condition of several related congenital defects that occur due to abnormal development of the fetal heart during the first eight weeks of pregnancy.

Tricuspid Atresia

Tricuspid atresia (TA) is a congenital (present at birth) heart defect that occurs due to abnormal development of the fetal heart beginning during the first eight weeks of pregnancy.

Heather Walsh's Story

Meet Heather Walsh

Meet Heather Walsh, MSN, RN, PCNS-BC, CHSE, CPN, the Simulation Education Specialist in the Board of Visitors (BOV) Simulation Program. She’s been at Children’s National for over 15 years. Her nickname is 'The Tap Dancing Nurse.'

Read More of Heather Walsh's Story