A circular mapping catheter is not mandatory for isolating pulmonary veins during paroxysmal atrial fibrillation ablation with radiofrequency.

Xhaet, Olivier;Deceuninck, Olivier;Robaye, Benoît;Dormal, Fabien;Blommaert, Dominique;et.al.
(2021) Journal of Interventional Cardiac Electrophysiology : an international journal of arrhythmias and pacing — Vol. 62, n° 2, p. 285-292 (2021)

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Authors
  • Xhaet, Olivierorcid-logoUCLouvain
    Author
  • Deceuninck, OlivierUCLouvain
    Author
  • Robaye, BenoîtUCLouvain
    Author
  • Dormal, Fabienorcid-logoUCLouvain
    Author
  • Collet, BenoîtUCLouvain
    Author
  • Godeaux, VéroniqueUCLouvain
    Author
  • Huys, FlorenceUCLouvain
    Author
  • Ballant, ElisabethUCLouvain
    Author
  • Gourdin, MaximilienUCLouvain
    Author
  • Blommaert, DominiqueUCLouvain
    Author
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Abstract
(en) PURPOSE: In this study, we evaluated the feasibility, efficacy, and safety of radiofrequency ablation of paroxysmal atrial fibrillation (AF) with the use of an ablation catheter only (non-CMC group) by retrospectively comparing its procedural success and recurrence rates at 1 year to ablation performed with the help of a circular mapping catheter (CMC group). METHODS: We compared the success and recurrence rates between 226 patients and 251 patients who underwent index ablation with and without the use of CMC, respectively. RESULTS: Freedom from recurrence was defined as a 1-year absence of AF/atrial tachycardia (AT) episodes > 30 s, beyond the 3-month blanking period. There was no significant difference between the number of pulmonary vein isolations, recurrence rate of AF/AT, and the use of antiarrhythmic drugs after 1 year of ablation. The procedure and fluoroscopy times were lower in the non-CMC group compared with the CMC group (106 ± 33 vs. 125 ± 32 min, p < 0.0001; 2.2 ± 1.9 vs. 2.7 ± 2.3 min, p = 0.0002, respectively). CONCLUSIONS: Pulmonary vein isolation without the use of a CMC is feasible; moreover, the material costs, procedure time, and radiation exposure were reduced compared with the CMC group. Freedom of recurrence was similar between groups. Optimized use of 3D electro-anatomical mapping systems could reduce the radiation exposure for both the patient and physician.
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Xhaet, O., Deceuninck, O., Robaye, B., Dormal, F., Collet, B., Godeaux, V., Huys, F., Ballant, E., Gourdin, M., & Blommaert, D. (2021). A circular mapping catheter is not mandatory for isolating pulmonary veins during paroxysmal atrial fibrillation ablation with radiofrequency. Journal of Interventional Cardiac Electrophysiology : an international journal of arrhythmias and pacing, 62(2), 285-292. https://doi.org/10.1007/s10840-020-00895-8 (Original work published 2021)