Atrial activation sequence changes during ventricular overdrive pacing: What is the mechanism?

Takashi Nakashima; Masaru Nagase; Taro Shibahara; Daiju Ono; Takehiro Yamada; Gen Tanabe; Keita Suzuki; Makoto Yamaura; Takahisa Ido; Shigekiyo Takahashi; Takuma Aoyama

doi:10.1016/j.jelectrocard.2022.09.003

Atrial activation sequence changes during ventricular overdrive pacing: What is the mechanism?

J Electrocardiol. 2022 Sep-Oct:74:134-136. doi: 10.1016/j.jelectrocard.2022.09.003. Epub 2022 Sep 15.

Authors

Affiliations

¹ Department of Cardiology, Central Japan International Medical Center, Gifu, Japan; Department of Cardiology, Graduate School of Medicine, Gifu University, Gifu, Japan.. Electronic address: takashin727jw@yahoo.co.jp.
² Department of Cardiology, Central Japan International Medical Center, Gifu, Japan.
³ Department of Cardiology, Central Japan International Medical Center, Gifu, Japan; Department of Molecular Pathophysiology, Shinshu University Graduate School of Medicine, Matsumoto, Nagano, 390-8621, Japan.
⁴ Department of Cardiology, Central Japan International Medical Center, Gifu, Japan; Department of Cardiology, Graduate School of Medicine, Gifu University, Gifu, Japan.
⁵ Department of Cardiology, Central Japan International Medical Center, Gifu, Japan; Department of Cardiology, Graduate School of Medicine, Gifu University, Gifu, Japan.; Department of Molecular Pathophysiology, Shinshu University Graduate School of Medicine, Matsumoto, Nagano, 390-8621, Japan.

PMID: 36215744
DOI: 10.1016/j.jelectrocard.2022.09.003

Abstract

We describe atrial activation sequence changes during ventricular overdrive pacing in a patient with a concealed left-sided accessory pathway and discuss its potential mechanism.

Keywords: Accessory pathway; Atrioventricular reciprocating tachycardia; Concealed conduction; Peel back; Refractory period.

MeSH terms

Atrial Fibrillation*
Electrocardiography
Humans