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Description

Atrioventricular nodal reentrant tachycardia (AVNRT) is a type of supraventricular tachycardia (SVT) caused by a reentrant circuit within the atrioventricular (AV) node. It is the most common type of SVT, accounting for approximately 50-60% of all cases. In AVNRT, an electrical impulse travels around a circular pathway within the AV node, resulting in a rapid heart rate. The reentrant circuit is usually caused by an extra electrical pathway in the AV node, which allows the electrical impulse to travel in both directions. Treatment for AVNRT typically involves medications or a procedure called radiofrequency ablation, which destroys the extra electrical pathway.

Synonyms

• atrioventricular nodal reentrant tachycardia
• AVNRT

Basic Lab Tests (measurements)

• vital signs
  •      pulse

Detailed Disease and Condition Information (use the search buttons below to find details on these topics)
All of the following must be considered when interpreting clinical findings and are too extensive to be covered on this site: