Children's Hospital Colorado
Heart

Atrioventricular Septal Defect

We see more, treat more and heal more kids than any other hospital in the region.

Best Children's Hospital by U.S. News & World Report Cardiology 2021-2 Badge

Get Care

Would you like to learn more about us?
Heart Institute
Are you ready to schedule an appointment?
Schedule an appointment
Do you have questions about your child’s condition?
Call

What is an atrioventricular septal defect?

A complete atrioventricular septal defect (AVSD), or AV canal, is a rare cardiac birth defect. AVSD is the result of incomplete development of the middle of the heart. In these cases, the common atrioventricular valve in the center of the heart fails to separate into two distinct valves (the tricuspid and mitral valves). In addition, the walls that separate the upper and lower chambers of the heart do not grow all the way to meet in the center of the heart. The result is a large hole in the center of the heart.

Who gets ASVD?

This heart defect is common in babies with Down syndrome (approximately 15 to 20% of newborns with Down syndrome have AVSD).

How is ASVD diagnosed?

AVSD in babies may be identified during pregnancy using ultrasound.

Next steps

  • Would you like to learn more about us?

    Learn more about the Heart Institute
  • Do you have questions about your child’s condition?

    720-777-6820
  • Are you ready to schedule an appointment?

    Schedule an appointment

Compassionate care, wherever you are

We’re here when you need us. Telehealth appointments are available across every specialty, so you can get the high-quality care we’ve always offered from the comfort, privacy and convenience of home.

See if telehealth is right for you

 

Get to know our pediatric experts.

Amanda Schmitt, MD

Amanda Schmitt, MD

Ob/Gyn Obstetrics & Gynecology

Patient ratings and reviews are not available Why?

Emily Bucholz, MD

Emily Bucholz, MD

Cardiology - Pediatric, Pediatrics

Patient ratings and reviews are not available Why?

Michelle Grenier, MD

Michelle Grenier, MD

Cardiology - Pediatric, Pediatrics

Frank Chow, MD

Frank Chow, MD

Ob/Gyn Obstetrics & Gynecology

Patient ratings and reviews are not available Why?