Supraventricular tachycardia (1887)

Key points below

What is Supraventricular Tachycardia (SVT)?

Special cells in the heart create electrical impulses that make the heart beat. The heart rhythm stays normal when these impulses follow the normal electrical pathway of the heart. When the impulse does not follow the normal electrical pathway, the heart rhythm will not be normal. This is what happens in SVT. With SVT, the heart beats faster than it should. 

How does it affect my child?

What tests will be needed?

How is it treated?


If you are concerned about how your child looks, call 911. Call your child’s doctor, nurse, or clinic if your child:

  • Is having an episode of SVT and you are not sure what to do.
  • Is having an episode of SVT that won’t stop.
  • Has special health care needs that were not covered by this information.