Fast Heart Rate (Supraventricular Tachycardia - SVT)

Health Information

Supraventricular Tachycardia

UW Health Heart, Vascular and Thoracic doctors treat Supraventricular tachycardia (SVT), an abnormally rapid heart rate.
About Supraventricular Tachycardia (SVT)
Supraventricular tachycardia (SVT) is a rapid heart rate which occurs from time to time. Normally, the chambers of the heart (atria and ventricles) contract in a coordinated manner. The contractions are caused by an electrical signal that begins in the sinoatrial node (also called the sinus node or SA node). The signal is conducted through the atria (the upper heart chambers) and stimulates the atria to contract.
Supraventricular tachycardia can be initiated in the SA node; in the atria or the atrial conduction pathways; or in the AV node. It occurs most often in young people and infants.


Additional Treatments
  • Medication management
  • Changes to your diet (for example: reducing your caffeine intake)