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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.


Our team is standing by to schedule your child’s appointment.

Frequently Asked Questions

What is truncus arteriosus in a child?

What causes truncus arteriosus in children?

What are the symptoms of truncus arteriosus in children?

How is truncus arteriosus diagnosed in children?

How is truncus arteriosus treated in children?

What are possible complications of truncus arteriosus in children?

How can I help my child live with truncus arteriosus?

When should I call my child's healthcare provider?


Serenity's Story

Providers Who Treat Truncus Arteriosus

Departments that Treat Truncus Arteriosus

Prenatal Cardiology Program

Children diagnosed with heart conditions before they are born receive comprehensive, expert care from our fetal cardiology specialists. Learn more about our Prenatal Cardiology Program.

Provider checking young boys breathing

Pediatric 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.

Dr. Harahsheh checks pulse of patient.


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.