Two common types of
supraventricular tachycardia—atrioventricular reciprocating tachycardia (AVRT) and
atrioventricular nodal reentrant tachycardia (AVNRT)—are caused by an abnormal
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
Wolff-Parkinson-White syndrome—may in some cases be
For more information about how SVT happens, see the topic Types of Supraventricular Tachycardia.
Other types of supraventricular tachycardia may be
- 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,
pneumonia, or metabolic problems.
- Heart surgery in the upper chambers of the heart, such as surgery for a congenital heart defect.
Rakesh K. Pai, MD, FACC - Cardiology, Electrophysiology
John M. Miller, MD, FACC - Cardiology, Electrophysiology
August 9, 2012
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