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Results of complex left atrial ablation of long-lasting persistent atrial fibrillation

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Abstract

Purpose

The aim of the study was to identify variables associated with successful long-term maintenance of sinus rhythm (SR) after a single ablation of long-lasting persistent atrial fibrillation (AF).

Methods

Complex left atrial (LA) ablation was performed in 100 patients. Restoration of SR by ablation was the desired procedure endpoint.

Results

SR was restored by ablation in 38 patients during the first procedure. Following one ablation, 50 patients remained in SR for 31 ± 14 months. SR maintenance was associated with shorter duration of the persistent AF (median 14 vs. 22 months; P = 0.05), lower proportion of the LA points exhibiting voltage <0.2 mV (median 20% vs. 33%; P = 0.006), and higher proportion of LA points showing voltage >1 mV (median 15% vs. 11%; P = 0.02).

Conclusion

Among clinical variables, shorter duration of persistent AF and higher voltage recorded around the LA predicted long-term maintenance of SR after single ablation.

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Authors and Affiliations

  1. Department of Cardiology, Heart Center, Hospital Podlesí a.s., Hraniční 453, Třinec, 739 61, Czech Republic

    Martin Fiala, Jan Chovančík, Dorota Wojnarová, Veronika Bulková, Henryk Szymeczek, Renáta Nevřalová, Radek Neuwirth, Otakar Jiravský, Libor Škňouřil, Miloslav Dorda, Jaroslav Januška & Marian Branny

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  1. Martin Fiala
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  2. Jan Chovančík
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  3. Dorota Wojnarová
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Correspondence to Martin Fiala.

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Fiala, M., Chovančík, J., Wojnarová, D. et al. Results of complex left atrial ablation of long-lasting persistent atrial fibrillation. J Interv Card Electrophysiol 23, 189–198 (2008). https://doi.org/10.1007/s10840-008-9293-3

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  • DOI: https://doi.org/10.1007/s10840-008-9293-3

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