Atrial flutter is similar to atrial fibrillation ... 2018;4a-b] In patients with Wolff-Parkinson-White (WPW) syndrome, an “accessory pathway,” which commonly has a short refractory period ...

can alter the normal conduction cycle to produce a reentrant circuit within these two pathways, resulting in the tachycardia. Unlike atrial fibrillation and atrial flutter, AVNRT does not have any ...