Heart and Blood Conditions

Truncus Arteriosus Treatment

  • Schedule an appointment +

    • For appointments in Seattle, Bellevue, Everett, Federal Way, Olympia, Tri-Cities and Wenatchee, call 206-987-2515.
    • For appointments in Tacoma and Silverdale, call 253-272-1812.
    • For appointments in Alaska, call 907-339-1945.
    • How to schedule

    If this is a medical emergency, call 911.

  • Find a doctor +

  • Locations +

    • Seattle Children's Main Campus: 206-987-2515
    • Bellevue Clinic and Surgery Center: 425-454-4644
    • Everett: 425-304-6080
    • South Clinic in Federal Way: 253-838-5878
    • Olympia: 360-459-5009
    • South Sound Cardiology Clinics: 253-272-1812
    • Tri-Cities (Richland): 509-946-0976
    • Wenatchee: 509-662-9266
    • Pediatric Cardiology of Alaska: 907-339-1945
    • Seattle Children's doctors provide many cardiac services at regional sites throughout the Pacific Northwest. See our complete list of Heart Center locations.

  • Refer a patient +

    • If you are a provider, fax a New Appointment Request Form (NARF) (PDF) (DOC) to 206-985-3121 or 866-985-3121 (toll-free).
    • No pre-referral work-up is required for most conditions. If you have already done testing such as an EKG, Holter monitor or echocardiogram, please fax this information as well as relevant clinic notes and the NARF to 206-985-3121 or 866-985-3121 (toll-free).
    • Your patient will be seen as quickly as possible by the provider who is the best match for managing the current problem.
    • View our complete Heart Center Referral Information (PDF).

Babies with truncus arteriosus need surgery early in life so the lungs get only oxygen-poor blood and the body gets only oxygen-rich blood.

Truncus Arteriosus Treatment Options


During surgery, the doctor completes these steps:

  • The doctor detaches the main pulmonary artery or the left and right pulmonary arteries from the large common artery. This leaves just the aorta coming out of the heart.
  • The doctor connects the main pulmonary artery or the left and right pulmonary arteries to the right ventricle. This may involve putting in a tube to make the connection. The doctor may also put in a pulmonary valve, made from tissue from a cadaver.
  • The doctor closes the ventricular septal defect with a patch. This keeps oxygen-rich blood out of the right ventricle and oxygen-poor blood out of the left ventricle. The patch is placed so that blood flows from the left ventricle into the aorta.

Before surgery to correct truncus arteriosus, some babies have surgery to put a band around their pulmonary artery. This narrows the artery so their lungs don't get too much blood. Later these children still need the surgery described above.

Most babies do not have pulmonary artery banding first. They just have surgery to correct their truncus arteriosus.

Later in life some children with truncus arteriosus need their aortic valve replaced because it did not form the correct way.


Babies with symptoms of heart failure may need medicines to help their heart work better until they have surgery.

Adult Congenital Heart Disease Program

To meet your child's long-term healthcare needs, we have a special Adult Congenital Heart Disease Program to transition your child to adult care when they're ready.