Atypical atrial resetting with ventricular extrastimulus during tachycardia: What is the mechanism?

• DOI: 10.1002/joa3.13126
• Publication Date: 2024-08-08T02:28:45Z
• Authors: Takashi Kobari; Yoshiaki Kaneko; Shuntaro Tamura; Hiroshi Hasegawa; Yosuke Nakatani
• Keywords: RC666-701; Diseases of the circulatory (Cardiovascular) system; Spotlight

This atypical atrial resetting with ventricular extrastimulus delivered during supraventricular tachycardia is characterized by no capture of local ventricular deflection contralateral to the earliest atrial site and is a finding unmasking the presence of a nodoventricular pathway, the ventricular insertion of which is located apically, away from the mitral annulus.