A Case of Roof‐Dependent Atrial Flutter With an Endocardial Narrow Channel Successfully Visualized by the Peak Frequency Analysis

Journal of Arrhythmia 2026 Open access

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Authors: Tokuma Kawabata, Yoshimori An, Kazuhiro Ogura, Shiho Enomoto, Toshiaki Izumi
DOI: 10.1002/joa3.70294
Cited by: 0
References: 5

Abstract

Roof-dependent atrial flutter (AFL) can sometimes be challenging to treat with endocardial catheter ablation due to the thickness of the atrial myocardium and the separation of outer epicardial conductive fibers from the endocardial myocardium. This case highlights the utility of peak frequency (PF) analysis during the AFL, which can visualize a narrow endocardial channel and help physicians select an optimal therapeutic target to achieve a transmural line of block.

Fields of Study & Subjects

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

Publication details

Journal / source
Journal of Arrhythmia
Volume
42
Issue
1
Pages
e70294–e70294
Publication date
1 February 2026
Language
EN