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Opposite evolution on voltage and thickness from paroxysmal to persistent AF
FUNDING ACKNOWLEDGEMENTS: Type of funding sources: None. BACKGROUND: There is a controversy about correlation between voltage and thickness in the atrial myocardium and their evolution from paroxysmal to persistent atrial fibrillation (AF). PURPOSE: This is an observational study to compare voltage...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Oxford University Press
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10207079/ http://dx.doi.org/10.1093/europace/euad122.010 |
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author | Silva Garcia, E Banez, V Gonzalez, M Puche, J E Gomez, A Cano, L Fernandez, R Fernandez, M Fernandez-Armenta, J |
author_facet | Silva Garcia, E Banez, V Gonzalez, M Puche, J E Gomez, A Cano, L Fernandez, R Fernandez, M Fernandez-Armenta, J |
author_sort | Silva Garcia, E |
collection | PubMed |
description | FUNDING ACKNOWLEDGEMENTS: Type of funding sources: None. BACKGROUND: There is a controversy about correlation between voltage and thickness in the atrial myocardium and their evolution from paroxysmal to persistent atrial fibrillation (AF). PURPOSE: This is an observational study to compare voltage and thickness of different areas on the left atrium in paroxysmal and persistent atrial fibrillation. METHODS: 43 patients underwent first procedure atrial fibrillation ablation. Points with electrical information from an electroanatiomical map in sinus rhythym were acquiered during the ablation procedure covering the whole atrial surface. CT was acquired in all patients before the procedure and endo- and epicardium from the atrium was segmented for the atrial thickness calculation. All the points from the electromecanical map were projected on the thickness map to have both information on the same location. 3D atrium was segmented in 5 areas for the analysis: Lateral, Anterior, Septal, Posterior and Roof (Figure 1). Voltage and thickness values among different areas and between AF type were compared. RESULTS: 30 paroxysmal and 13 persistent AF patients were analyzed acquiring 435±192 points per patient and 87±55 points per patient/area (20884 points in total). There was no linear correlation between voltage and thickness comparing all the patients nor among different areas nor between AF type (R<0.2 in all cases). Regarding paroxysmal AF patients, septum showed significatly lower voltage compared with the other segments, posterior, lateral, anterior and roof (1.4±1.3mV*, P<0.001). The roof showed the highest voltage (2.3±1.7mV). The thickness analysis showed the septal segment as thinner segment and lateral as thicker segment (1.4±0.6mm,1.7±0.9mm, P<0.001) (Figure 2). Regarding persistent AF patients: septum showed significatly lower voltage (1±0,9mV*)compared with the other segments. Roof showed higher voltage(2±1.7mV) (Figure 2). The thickness analysis showed the anterior segment as thinner segment and lateral as the thickest segment (1.6±0.8mm, 1.9±0.9mm, (P<0.001) different like on paroxysmal AF population. Comparing voltage and thicknes between paroxysmal and persistent AF, all the segments on persistent population showed lower voltage values, with significant differences on all segmentes but the lateral one. On the other hand, all segments on persistent population showed statisticaly signignificant thicker myocardium in camparison with paroxysmal population (Figure 2). CONCLUSIONS: According to our findings, there is no linear correlation between voltage and thickness. Persistent AF atria show thicker walls but with lower voltages in comparison with paroxysmal AF atria. [Figure: see text] [Figure: see text] |
format | Online Article Text |
id | pubmed-10207079 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Oxford University Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-102070792023-05-25 Opposite evolution on voltage and thickness from paroxysmal to persistent AF Silva Garcia, E Banez, V Gonzalez, M Puche, J E Gomez, A Cano, L Fernandez, R Fernandez, M Fernandez-Armenta, J Europace 10.1.99 - Pathophysiology and Mechanisms, Other FUNDING ACKNOWLEDGEMENTS: Type of funding sources: None. BACKGROUND: There is a controversy about correlation between voltage and thickness in the atrial myocardium and their evolution from paroxysmal to persistent atrial fibrillation (AF). PURPOSE: This is an observational study to compare voltage and thickness of different areas on the left atrium in paroxysmal and persistent atrial fibrillation. METHODS: 43 patients underwent first procedure atrial fibrillation ablation. Points with electrical information from an electroanatiomical map in sinus rhythym were acquiered during the ablation procedure covering the whole atrial surface. CT was acquired in all patients before the procedure and endo- and epicardium from the atrium was segmented for the atrial thickness calculation. All the points from the electromecanical map were projected on the thickness map to have both information on the same location. 3D atrium was segmented in 5 areas for the analysis: Lateral, Anterior, Septal, Posterior and Roof (Figure 1). Voltage and thickness values among different areas and between AF type were compared. RESULTS: 30 paroxysmal and 13 persistent AF patients were analyzed acquiring 435±192 points per patient and 87±55 points per patient/area (20884 points in total). There was no linear correlation between voltage and thickness comparing all the patients nor among different areas nor between AF type (R<0.2 in all cases). Regarding paroxysmal AF patients, septum showed significatly lower voltage compared with the other segments, posterior, lateral, anterior and roof (1.4±1.3mV*, P<0.001). The roof showed the highest voltage (2.3±1.7mV). The thickness analysis showed the septal segment as thinner segment and lateral as thicker segment (1.4±0.6mm,1.7±0.9mm, P<0.001) (Figure 2). Regarding persistent AF patients: septum showed significatly lower voltage (1±0,9mV*)compared with the other segments. Roof showed higher voltage(2±1.7mV) (Figure 2). The thickness analysis showed the anterior segment as thinner segment and lateral as the thickest segment (1.6±0.8mm, 1.9±0.9mm, (P<0.001) different like on paroxysmal AF population. Comparing voltage and thicknes between paroxysmal and persistent AF, all the segments on persistent population showed lower voltage values, with significant differences on all segmentes but the lateral one. On the other hand, all segments on persistent population showed statisticaly signignificant thicker myocardium in camparison with paroxysmal population (Figure 2). CONCLUSIONS: According to our findings, there is no linear correlation between voltage and thickness. Persistent AF atria show thicker walls but with lower voltages in comparison with paroxysmal AF atria. [Figure: see text] [Figure: see text] Oxford University Press 2023-05-24 /pmc/articles/PMC10207079/ http://dx.doi.org/10.1093/europace/euad122.010 Text en © The Author(s) 2023. Published by Oxford University Press on behalf of the European Society of Cardiology. https://creativecommons.org/licenses/by-nc-nd/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs licence (https://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial reproduction and distribution of the work, in any medium, provided the original work is not altered or transformed in any way, and that the work is properly cited. For commercial re-use, please contact journals.permissions@oup.com |
spellingShingle | 10.1.99 - Pathophysiology and Mechanisms, Other Silva Garcia, E Banez, V Gonzalez, M Puche, J E Gomez, A Cano, L Fernandez, R Fernandez, M Fernandez-Armenta, J Opposite evolution on voltage and thickness from paroxysmal to persistent AF |
title | Opposite evolution on voltage and thickness from paroxysmal to persistent AF |
title_full | Opposite evolution on voltage and thickness from paroxysmal to persistent AF |
title_fullStr | Opposite evolution on voltage and thickness from paroxysmal to persistent AF |
title_full_unstemmed | Opposite evolution on voltage and thickness from paroxysmal to persistent AF |
title_short | Opposite evolution on voltage and thickness from paroxysmal to persistent AF |
title_sort | opposite evolution on voltage and thickness from paroxysmal to persistent af |
topic | 10.1.99 - Pathophysiology and Mechanisms, Other |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10207079/ http://dx.doi.org/10.1093/europace/euad122.010 |
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