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Erschienen in: Journal of Interventional Cardiac Electrophysiology 4/2023

17.10.2022

Impact of pulmonary veins anatomy on the outcomes of radiofrequency ablation for paroxysmal atrial fibrillation in the era of contact force-sensing ablation catheters

verfasst von: Karim Benali, Van Duc Lai, Nefissa Hammache, Isabelle Magnin-Poull, Christian de Chillou, Jean-Marc Sellal

Erschienen in: Journal of Interventional Cardiac Electrophysiology | Ausgabe 4/2023

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Abstract

Background

Pulmonary vein (PV) isolation (PVI) has become the cornerstone of atrial fibrillation (AF) ablation in patients with paroxysmal AF (PAF). PVI durability is influenced by many factors including PVs anatomy. Data regarding the influence of PVs anatomical variations on the outcomes of PAF ablation in the era of contact force-sensing ablation catheters are scarce and contradictory.

Methods

Consecutive patients referred to our center for a first ablation of PAF using radiofrequency (RF) were included. PVs anatomy was classified into 3 groups: typical anatomy (4 distinct veins), left common ostium (LCO), and right accessory PV (RAPV). The primary outcome was recurrence of atrial arrhythmia episode during a 12-month follow-up after ablation.

Results

Two hundred twenty-three patients were included (mean age 58.4 ± 10.8 years and 70.9% male). Among this cohort, 141 patients (63.2%) had typical PV anatomy, 53 (23.8%) had a LCO, and 29 (13.0%) had a RAPV. The existence of a RAPV was not associated with a higher rate of AF recurrences (22 (14.3%) vs. 7 (10.1%), p = 0.519). After multivariate analysis, the presence of an LCO did not appear to be associated with the AF recurrence rate at 12 months (OR = 1.69, 95%CI 0.95–2.49, p = 0.098). Maintenance of antiarrhythmic drugs after ablation was the only factor independently associated with a decreased risk of AF recurrence at 12 months (OR = 0.76, 95%CI 0.60–0.97, p = 0.046).

Conclusion

This study suggests that the presence of an LCO or a RAPV is not associated with a higher rate of AF recurrence at 12 months after radiofrequency PVI using contact force-sensing catheters in PAF patients.
Literatur
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Metadaten
Titel
Impact of pulmonary veins anatomy on the outcomes of radiofrequency ablation for paroxysmal atrial fibrillation in the era of contact force-sensing ablation catheters
verfasst von
Karim Benali
Van Duc Lai
Nefissa Hammache
Isabelle Magnin-Poull
Christian de Chillou
Jean-Marc Sellal
Publikationsdatum
17.10.2022
Verlag
Springer US
Erschienen in
Journal of Interventional Cardiac Electrophysiology / Ausgabe 4/2023
Print ISSN: 1383-875X
Elektronische ISSN: 1572-8595
DOI
https://doi.org/10.1007/s10840-022-01393-9

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