Double figure-of-eight reentry during atrial tachycardia using 4 critical boundaries: A unique topological finding

Heart Rhythm 2026 Open access

Read full text
Authors: Mattias Duytschaever, Viktor Van Nieuwenhuize, Bjorn Verstraeten, Seabstian Lootens, Robin Van Den Abeele, Sander Hendrickx, Jean‐Benoît le Polain de Waroux, Rene Tavernier, Sébastien Knecht, Nele Vandersickel
DOI: 10.1016/j.hrthm.2026.01.008
Cited by: 2
References: 7

Abstract

Recent translational studies by Vandersickel and Duytschaever et al. focusing on topology and the role of critical (CBs) and non-critical boundaries (NCBs) in reentry, have shown that reentrant atrial tachycardia (AT) in humans is driven by rotation around two CBs. 1-3 In atria with two boundaries-only, this manifests as a single reentrant loop with clockwise (CW) rotation around one CB and counterclockwise (CCW) rotation around the other CB. In atria with three boundaries or more, paired CB rotation manifests itself as two loops simultaneously rotating (one CW, the other CCW) around both CBs with parallel activation around the residual NCBs.

Fields of Study & Subjects

Cardiac Arrhythmias and Treatments Cardiac electrophysiology and arrhythmias Atrial Fibrillation Management and Outcomes

Publication details

Journal / source
Heart Rhythm
Publisher
Elsevier BV
Volume
23
Issue
9
Pages
1949–1952
Publication date
8 January 2026
Language
EN