Cited by 50Cardiac Arrhythmias and TreatmentsAtrial Fibrillation Management and OutcomesCardiac electrophysiology and arrhythmias

Ablation of perimitral flutter following catheter ablation of atrial fibrillation: impact on outcomes from a randomized study (PROPOSE)

BAI, RONG, BIASE, LUIGI DI, MOHANTY, PRASANT, RUSSO, ANTONIO DELLO, CASELLA, MICHELA, PELARGONIO, GEMMA, THEMISTOCLAKIS, SAKIS, MOHANTY, SANGHAMITRA +12 more·2012·Journal of Cardiovascular Electrophysiology

Abstract

INTRODUCTION: Patients with previous ablation for atrial fibrillation (AF) may experience recurrence of perimitral flutter (PMFL). These arrhythmias are usually triggered from sources that may also induce AF. This study aims at determining whether ablation of triggers or completing mitral valve isthmus (MVI) block prevents more arrhythmia recurrences. METHODS AND RESULTS: Sixty-five patients with recurrent PMFL after initial ablation of long standing persistent AF were included in this study. Thirty-two patients were randomized to MVI ablation only (Group 1) and 33 were randomized to cardioversion and repeat pulmonary vein (PV) isolation plus ablation of non-PV triggers (Group 2). MVI bidirectional block was achieved in all but 1 patient from Group 1. In Group 2, reconnection of 17 PVs was detected in 14 patients (42%). With isoproterenol challenge, 44 non-PV trigger sites were identified in 28 patients (85%, 1.57 sites per patient). At 18-month follow-up, 27 patients (84%) from Group 1 had recurrent atrial tachyarrhythmias, of whom 15 remained on antiarrhythmic drug (AAD); however, 28 patients from Group 2 (85%, P < 0.0001 vs Group 1) were free from arrhythmia off AAD. The ablation strategy used in Group 2 was associated with a lower risk of recurrence (hazard ratio = 0.10, 95% CI 0.04-0.28, P < 0.001) and an improved arrhythmia-free survival (log rank P < 0.0001). CONCLUSION: In patients presenting with PMFL after ablation for longstanding persistent AF, MVI block had limited impact on arrhythmia recurrence. On the other hand, elimination of all PV and non-PV triggers achieved higher freedom from atrial arrhythmias at follow-up.

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Crossref · 10.1111/j.1540-8167.2011.02182.x

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Authors
BAI, R., BIASE, L. D., MOHANTY, P., RUSSO, A. D., CASELLA, M., PELARGONIO, G., THEMISTOCLAKIS, S., MOHANTY, S., ELAYI, C. S., SANCHEZ, J., BURKHARDT, J. D., HORTON, R., GALLINGHOUSE, G. J., BAILEY, S. M., BONSO, A., BEHEIRY, S., HONGO, R. H., RAVIELE, A., TONDO, C., & NATALE, A.
Affiliations
  • St David's Medical Center (US)
  • University of Milan (IT)
  • Università Cattolica del Sacro Cuore (IT)
  • University of Kentucky (US)
Venue
Journal of Cardiovascular Electrophysiology
Publisher
Wiley
Published
2011-09-28
Volume
23
Issue
2
Pages
137-144
ISSN
  • 1045-3873 (ISSN-L)
  • 1540-8167
OpenAlex
W2089182054
Cited by
50
References
28
Citations by year
2024: 2 · 2023: 1 · 2022: 2 · 2021: 3 · 2020: 3 · 2019: 1 · 2018: 2 · 2017: 10 · 2016: 2 · 2015: 9 · 2014: 3 · 2013: 4 · 2012: 6
FWCI
3.08
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Cardiovascular Electrophysiology (publishedVersion)
  • PubMed (publishedVersion)
  • Università Politecnica delle Marche (Università Politecnica delle Marche) (submittedVersion)
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
perimitral flutter, atrial fibrillation, catheter ablation, pulmonary vein isolation, non-PV triggers, arrhythmia recurrence, long-standing persistent atrial fibrillation, cardioversion, antiarrhythmic drugs, arrhythmia-free survival
MeSH terms
Aged, Atrial Fibrillation, Atrial Flutter, Electrocardiography, Female, Follow-Up Studies, Humans, Male, Middle Aged, Mitral Valve, Treatment Outcome, Catheter Ablation, Secondary Prevention

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