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Open AccessArticle

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

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Escuela Politécnica, Universidad de Castilla-La Mancha, Camino del Pozuelo sn, 16071 Cuenca, Spain
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Unidad de Arritmias, Servicio de Cardiología, Hospital Ramón y Cajal, Ctra. de Colmenar Viejo km. 9100, 28034 Madrid, Spain
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Instituto ITACA, Universitat Politècnica de València, Camino de Vera sn, 46022 Valencia, Spain
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Unidad de Arritmias, Hospital Clínico San Carlos, Plaza de Cristo Rey sn, 28040 Madrid, Spain
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Author to whom correspondence should be addressed.
Mathematics 2020, 8(10), 1813; https://doi.org/10.3390/math8101813
Received: 5 September 2020 / Revised: 1 October 2020 / Accepted: 3 October 2020 / Published: 16 October 2020
(This article belongs to the Section Probability and Statistics Theory)
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. View Full-Text
Keywords: spatial cross-correlation; transfer entropy; atrial fibrillation; ablation recurrence spatial cross-correlation; transfer entropy; atrial fibrillation; ablation recurrence
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MDPI and ACS Style

Cervigón, R.; Moreno, J.; Millet, J.; Pérez-Villacastín, J.; Castells, F. Pulmonary Vein Activity Organization to Determine Atrial Fibrillation Recurrence: Preliminary Data from a Pilot Study. Mathematics 2020, 8, 1813.

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