Atrioventricular reentrant tachycardia (AVRT) is a rhythm problem in your heart that makes it beat too fast. It results from an extra connection between your upper and lower chambers. You might ...

Some of the possible causes and risk factors for PSVTs like AVNRT include: AV reciprocating tachycardia (AVRT) is the fourth most common type of SVT in adults over 20 years of age. It’s also the ...

"His synchronous PVC" delivered during SVT: AVRT over a septal pathway (tachycardia cycle length 275 ms). A PVC delivered during His refractoriness advances the timing of atrial activation by 15 ...

If an action potential is able to traverse the accessory pathway and then return retrograde through the AV node ― or vice versa ― a reentrant circuit can be created, resulting in AVRT.