Heart and Blood Conditions

Aortic Stenosis Symptoms and Diagnosis

  • 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.

    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).

Symptoms of Aortic Stenosis

Most children with aortic stenosis do not have any symptoms. They may have no noticeable problems unless the stenosis gets worse.

If children do have symptoms, they may include:

  • Feeling short of breath when active
  • Having pain, pressure or tightness in their chest
  • Fainting or feeling weak or dizzy when active
  • Having palpitations  

Babies born with severe aortic stenosis may have to work hard to breathe, have poor appetite or trouble feeding, and failure to thrive.

They may also show signs of shock because their heart cannot pump enough blood to the rest of their body. Signs of cardiogenic shock include:

  • Less frequent urination (peeing)
  • Cool limbs (arms and legs)
  • Increased heart rate
  • Fussiness
  • Poor feeding
  • Rapid breathing
  • Lethargy (lack of energy)
  • Mottled skin (discolored skin)

Aortic Stenosis Diagnosis

To diagnose aortic stenosis, your doctor will examine your child, use a stethoscope to listen to their heart, and check their blood pressure. Sometimes, doctors find aortic stenosis after hearing a heart murmur in a child who appears well.

The doctor will ask for details about any symptoms your child has, their health history and your family health history.

If your child has aortic stenosis, an echocardiogram will be done to evaluate the stenosis and to see how their heart works.

Your child may need other tests that provide more information about their heart. These include a chest X-rays or MRI (magnetic resonance imaging) of the heart, cardiac catheterization and electrocardiogram.

Contact Us

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