What Is Re Entry Svt

The most common type of supraventricular tachycardia (SVT) is called atrioventricular node re-entrant tachycardia (AVNRT) or A-V nodal reentry. In A-V nodal reentry, the electrical impulse travels in and around the A-V node. The electrical signal goes around in a circle, like a racecar going around a racetrack.

What is re entrant tachycardia?

Atrioventricular nodal reentry tachycardia (AVNRT) is the most common type of supraventricular tachycardia. People with AVNRT have episodes of an abnormally fast heartbeat (more than 100 beats per minute) that often start and end suddenly.

How does reentry cause tachycardia?

Re-entry ventricular arrhythmia is a type of paroxysmal tachycardia occurring in the ventricle where the cause of the arrhythmia is due to the electric signal not completing the normal circuit, but rather an alternative circuit looping back upon itself. There develops a self-perpetuating rapid and abnormal activation.