Cited by 27Cardiac Arrhythmias and TreatmentsAtrial Fibrillation Management and OutcomesCardiac electrophysiology and arrhythmias

Recurrent spontaneous clinical perimitral atrial tachycardia in the context of atrial fibrillation ablation

Miyazaki, Shinsuke, Shah, Ashok J., Hocini, Mélèze, Haïssaguerre, Michel, Jaïs, Pierre·2015·Heart Rhythm

Abstract

Background Recurrent perimitral atrial tachycardia (AT) is a challenging arrhythmia and is frequently encountered in the context of atrial fibrillation (AF) ablation.Objective The purpose of this study was to investigate the clinical characteristics and the procedural and clinical outcomes in patients with recurrent perimitral atrial tachycardia (PMAT) after AF ablation.Methods Among 520 consecutive ablation procedures for recurrent AT/AF after AF ablation, 40 procedures (patients) were performed for clinically recurrent PMAT 12.1 ± 13.6 months after the last procedure (total 2.2 ± 1.3 procedures). Previously, mitral isthmus (MI) linear ablation was performed in 26 of 40 procedures, including 13 procedures with complete block and 13 with 159.0 ± 23.0 ms of conduction delay without block. As a reference group, conduction delay was evaluated in 55 patients with incomplete MI block and absence of spontaneous PMAT during the follow-up period.Results Recurrent PMATs were terminated by MI linear ablation in 26 of 40 patients. Bidirectional block across the MI and anterior line joining the mitral annulus and left atrial roof was achieved in 33 (82.5%) and 2 (5%) patients, respectively. At mean follow-up of 26.7 ± 14.5 months, 2 patients (5%) underwent reablation for spontaneously recurrent PMAT. At 12 months after the ablation procedure for PMAT, 73.5% of the patients were free from AT/AF. Conduction delay >149 ms predicted the occurrence of spontaneous PMAT with 80.0% sensitivity and 87.3% specificity.Conclusion PMAT can recur even after successful bidirectional MI linear block. Substantial conduction delay without block across the MI from a previous procedure(s) could predispose to recurrent PMAT. Although most clinical PMATs can be successfully treated by catheter ablation, very late recurrence is possible.

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Crossref · 10.1016/j.hrthm.2014.09.055

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Authors
Miyazaki, S., Shah, A. J., Hocini, M., Haïssaguerre, M., & Jaïs, P.
Affiliations
Hôpital Cardiologique du Haut-Lévêque (FR)
Venue
Heart Rhythm
Publisher
Elsevier BV
Published
2015-01
Volume
12
Issue
1
Pages
104-110
ISSN
1547-5271 (ISSN-L)
OpenAlex
W2087652214
Cited by
27
References
29
Citations by year
2026: 2 · 2025: 2 · 2023: 1 · 2022: 1 · 2021: 4 · 2020: 3 · 2019: 6 · 2017: 3 · 2016: 3 · 2015: 2
FWCI
1.83
Type
journal article
Language
en
Open access
closed
Locations
  • Heart Rhythm (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac Arrhythmias and Treatments
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Atrial Fibrillation Management and Outcomes
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac electrophysiology and arrhythmias
Keywords
atrial fibrillation ablation, bidirectional block, conduction delay, recurrent arrhythmia, catheter ablation, re-ablation, mitral annulus
MeSH terms
Aged, Atrial Fibrillation, Electrocardiography, Female, Humans, Male, Middle Aged, Recurrence, Risk Factors, Sensitivity and Specificity, Tachycardia, Supraventricular, Cohort Studies, Case-Control Studies, Treatment Outcome, Catheter Ablation

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