Two common types of supraventricular tachycardia—atrioventricular reciprocating tachycardia (AVRT) and atrioventricular nodal reentrant tachycardia (AVNRT)—are caused by an abnormal Reference electrical pathway in the heart and often occur in people who do not have any other type of heart disease. What causes this abnormal pathway might not be clear.
Some experts believe that AVRT—specifically Reference Wolff-Parkinson-White syndrome—may in some cases be inherited.
For more information about how SVT happens, see the topic Reference Types of Supraventricular Tachycardia.
Other types of supraventricular tachycardia may be caused by:
- Overly high levels of the heart medicine digoxin (such as Lanoxin) or the bronchodilator theophylline .
- Other serious health problems, such as chronic obstructive pulmonary disease, heart failure, pneumonia, or metabolic problems.
- Heart surgery in the upper chambers of the heart, such as surgery for a congenital heart defect.
|By:||Reference Healthwise Staff||Last Revised: Reference August 9, 2012|
|Medical Review:||Reference Rakesh K. Pai, MD, FACC - Cardiology, Electrophysiology
Reference John M. Miller, MD, FACC - Cardiology, Electrophysiology