Heart and Blood Conditions

Atrial Septal Defect 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).

Your child may not need treatment for atrial septal defect (ASD). In some children, it does not cause any problems. If the opening is small, it may close up on its own as your child grows. In this case, your doctor may simply recommend monitoring your child’s condition.

Some children need treatment because of the size of the defect, its effect on the heart or the symptoms it causes. The most common type of ASD is taken care of before school age and before the child has symptoms.

Atrial Septal Defect Treatment Options

Some ASDs are treated with a device that covers the opening in the septum. The device is placed through a large blood vessel in the groin using a long, thin tube (catheter) through a large blood vessel in the groin up to the heart. This is called cardiac catheterization.

Other children need surgery to close the hole with stitches (sutures) or a patch.

ASD Patch

Reprinted with permission www.heart.org. ©2009, American Heart Association, Inc.


The position and size of the defect are important factors in deciding the mode of treatment. Children need to reach a certain age and weight in order to have catheterization. If the defect is large and close to a heart valves, doctors may not be able to close it using a device; instead, the child will need surgery.

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.

Contact Us

Contact the Heart Center at 206-987-2015 for a cardiac referral, a second opinion or more information.