Dynamic changes in atrial activation sequence during supraventricular tachycardia
Citation
Gülcü, O., Merovci, I., Tunçez, A., Kara, M., Özcan Çetin, E. H., Can, İ. D. ... Topaloğlu, S. (2022). Dynamic changes in atrial activation sequence during supraventricular tachycardia. Journal of Cardiovascular Electrophysiology, 33(11), 2403-2406. https://doi.org/10.1111/jce.15690Abstract
A29‐year‐old woman presented with repeated paroxysms ofpalpitations resulting from a rapid narrow QRS complex tachycar-dia (NCT). Her family and personal history were free of anycardiovascular pathology. After the initiation of an NCT following a1:2 ventricular response to programmed atrial stimulation(Figure1), a premature ventricular complex (PVC) from the rightparahisian region was delivered at a time when the His bundleactivation was completed (Figure2); subsequently, a dynamicchange in the retrograde atrial activation sequence (AAS) andventriculoatrial (VA) intervals were developed (Figure3). Based onthe findings within the figures, what is the mechanism of tachycardia?
