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Pediatric Truncus Arteriosus

Key Points About Truncus Arteriosus in Children

  • Truncus arteriosus happens when there is an abnormal connection between the aorta and pulmonary artery.
  • It causes oxygen-poor (blue) blood and oxygen-rich blood to mix and to be pumped to the body. This causes blue skin, lips or nails (cyanosis).
  • The low levels of oxygen may not be enough to meet the body's needs and sustain life.
  • The condition must be treated with surgery. Most children who have surgery will live healthy lives.
  • Your child will need regular follow-up care with a pediatric cardiologist.
Children's Team

Children's Team


Yves d'Udekem

Yves d'Udekem d'Acoz

Division Chief, Cardiac Surgery
Co-Director, Children's National Heart Institute
Our Stories

Our Stories

Serenity with mom

Serenity's Story

Two-year-old Serenity is a normal toddler with a not-so-normal story. She has a long scar in the middle of her chest (her “boo boo”) that represents the three open heart surgeries she had before her second birthday.



Cardiac Imaging

We have expertise in the full spectrum of cardiac imaging, including transesophageal, prenatal, 3-D, intracardiac, and stress echocardiography and cardiac MRI.

Prenatal Cardiology Program

Our heart care begins before babies are even born, in our dedicated Prenatal Cardiology Program, where we diagnose and even treat prenatal heart conditions.

Cardiac Surgery

Our pediatric heart surgery team performs twice the number of surgeries of any other hospital in the region, with some of the best outcomes in the nation.


The pediatric heart experts at Children’s National Hospital in Washington, D.C., provide advanced care for unborn babies, children and young adults with heart conditions.

Children's National Heart Institute

Our expert pediatric heart team, including more than 40 subspecialties, offer advanced heart care and excellent outcomes for thousands of children every year.