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Pulmonary Vein Activity Organization to Determine Atrial Fibrillation Recurrence: Preliminary Data from a Pilot Study

Author

Listed:
  • Raquel Cervigón

    (Escuela Politécnica, Universidad de Castilla-La Mancha, Camino del Pozuelo sn, 16071 Cuenca, Spain)

  • Javier Moreno

    (Unidad de Arritmias, Servicio de Cardiología, Hospital Ramón y Cajal, Ctra. de Colmenar Viejo km. 9100, 28034 Madrid, Spain)

  • José Millet

    (Instituto ITACA, Universitat Politècnica de València, Camino de Vera sn, 46022 Valencia, Spain)

  • Julián Pérez-Villacastín

    (Unidad de Arritmias, Hospital Clínico San Carlos, Plaza de Cristo Rey sn, 28040 Madrid, Spain)

  • Francisco Castells

    (Instituto ITACA, Universitat Politècnica de València, Camino de Vera sn, 46022 Valencia, Spain)

Abstract

Ablation of pulmonary veins has emerged as a key procedure for normal rhythm restoration in atrial fibrillation patients. However, up to half of ablated Atrial fibrillation (AF) patients suffer recurrences during the first year. In this article, simultaneous intra-atrial recordings registered at pulmonary veins previous to the ablation procedure were analyzed. Spatial cross-correlation and transfer entropy were computed in order to estimate spatial organization. Results showed that, in patients with arrhythmia recurrence, pulmonary vein electrical activity was less correlated than in patients that maintained sinus rhythm. Moreover, correlation function between dipoles showed higher delays in patients with AF recurrence. Results with transfer entropy were consistent with spatial cross-correlation measurements. These results show that arrhythmia drivers located at the pulmonary veins are associated with a higher organization of the electrical activations after the ablation of these sites.

Suggested Citation

  • Raquel Cervigón & Javier Moreno & José Millet & Julián Pérez-Villacastín & Francisco Castells, 2020. "Pulmonary Vein Activity Organization to Determine Atrial Fibrillation Recurrence: Preliminary Data from a Pilot Study," Mathematics, MDPI, vol. 8(10), pages 1-13, October.
    • Handle: RePEc:gam:jmathe:v:8:y:2020:i:10:p:1813-:d:429409
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