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Pacing Clin Electrophysiol. 2021 Dec;44(12):2031-2040. doi: 10.1111/pace.14374. Epub 2021 Oct 21.

Early rhythm-control ablation therapy to prevent atrial fibrillation recurrences: Insights from the CHARISMA Registry.

Pacing and clinical electrophysiology : PACE

Francesco Solimene, Mario Giannotti Santoro, Giuseppe Stabile, Maurizio Malacrida, Antonio De Simone, Claudio Pandozi, Gemma Pelargonio, Pietro Rossi, Alberto Battaglia, Domenico Pecora, Maria Grazia Bongiorni, Giulio Zucchelli, Camilla Stocco, Alberto Arestia, Sara Iuliano, Maurizio Russo, Maria Lucia Narducci, Luca Segreti

Affiliations

  1. Clinica Montevergine, Mercogliano, Avellino, Italy.
  2. Second Division of Cardiology, Cardiac, Thoracic, Vascular Department, New Santa Chiara Hospital, Azienda Ospedaliero Universitaria Pisana, Pisa, Italy.
  3. Anthea Hospital, Bari, Italy.
  4. Boston Scientific, Milan, Italy.
  5. Laboratorio di Elettrofisiologia, Clinica San Michele, Maddaloni, Caserta, Italy.
  6. Division of Cardiology, San Filippo Neri Hospital, Rome, Italy.
  7. Department of Cardiovascular Sciences, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy.
  8. Institute of Cardiology, Catholic University of Sacred Heart, Rome, Italy.
  9. Arrhythmology Unit, Ospedale San Giovanni Calibita, Fatebefratelli, Isola Tiberina, Rome, Italy.
  10. Cardinal Massaia Hospital, Asti, Italy.
  11. Electrophysiology Unit, Cardiovascular Department, Poliambulanza Institute Hospital Foundation, Brescia, Italy.

PMID: 34606098 DOI: 10.1111/pace.14374

Abstract

BACKGROUND: An early, comprehensive rhythm-control therapy is needed in order to treat atrial fibrillation (AF) effectively and to improve ablation outcomes.

METHODS: A total of 153 consecutive patients from the CHARISMA registry undergoing AF ablation at eight centers were included. Patients with de novo PVI were classified as having undergone early treatment (ET) if the procedure was performed within 6 months after the first AF episode, and as having undergone delayed treatment (DT) if ablation was performed over 6 months after the first AF episode.

RESULTS: One-hundred fifty-three patients were enrolled (69.9% male, 59 ± 10 years, 61.4% paroxysmal AF, 38.6% persistent AF). The time from the first AF episode to the ablation procedure was 1034 ± 1483 days. The ET group comprised 36 patients (25.3%), the DT group 60 (39.2%) and Redo cases were 57 (37.3%). During a mean follow-up of 366 ± 130 days, 18 patients (11.8%) suffered an AF/AT recurrence. More DT patients than ET patients suffered recurrences (15.7% vs. 2.2%, p = 0.0452) and the time to AT/AF recurrence was shorter in the group of patients who received an ablation treatment after 6 months (HR = 6.19, 95% CI: 1.7 to 21.9; p = 0.0474). On multivariate Cox analysis, only hypertension (HR = 4.86, 95% CI: 1.6 to 14.98, p = 0.0062) was independently associated with recurrences. Beyond the hypertension risk factor, ET was associated with a low risk of recurrence; recurrence rate ranged from 0% (ET patients without hypertension) to 25.0% (DT patients with hypertension).

CONCLUSIONS: An early rhythm-control ablation therapy in the absence of common risk factors was associated with the lowest rate of recurrences.

© 2021 Wiley Periodicals LLC.

Keywords: DirectSense; ablation timing; atrial fibrillation; catheter ablation; guidelines; risk factors

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