Supraventricular tachycardia refers to a fast, abnormal heart rhythm that involves both the upper chambers (atria) and lower chambers (ventricles) of the heart. With this condition, the problem originates either in the atria or an area in the middle region of the heart (such as the atrioventricular node).
Generally this condition is not life-threatening but may require treatment as it may cause any of the following signs and symptoms:
There are different types of SVT that are classified by the path that the electrical signal takes from the area of the heart where they originate. These include:
In addition to a complete physical examination and medical history, a variety of tests may be used to diagnose this condition including: ECG (electrocardiogram), Holter ECG monitor, a 24-hour ambulatory Holter monitor, and sometimes, an event monitor or loop monitor.
Medications typically used to treat SVT are:
Watch this Catheter Ablation for Supraventricular Tachycardia (SVT) video performed at Brigham and Women’s Hospital.