Detection of the origin of atrial tachycardia by 3D electro-anatomical mapping and treatment by radiofrequency catheter ablation in horses.
arrhythmia
atrial flutter
electrophysiology
focal atrial tachycardia
supraventricular tachyarrhythmia
Journal
Journal of veterinary internal medicine
ISSN: 1939-1676
Titre abrégé: J Vet Intern Med
Pays: United States
ID NLM: 8708660
Informations de publication
Date de publication:
Jul 2022
Jul 2022
Historique:
received:
14
10
2021
accepted:
27
05
2022
pubmed:
11
6
2022
medline:
27
7
2022
entrez:
10
6
2022
Statut:
ppublish
Résumé
Atrial tachycardia (AT) can be treated by medical or electrical cardioversion but the recurrence rate is high. Three-dimensional electro-anatomical mapping, recently described in horses, might be used to map AT to identify a focal source or reentry mechanism and to guide treatment by radiofrequency ablation. To describe the feasibility of 3D electro-anatomical mapping and radiofrequency catheter ablation to characterize and treat sustained AT in horses. Nine horses with sustained AT. Records from horses with sustained AT referred for radiofrequency ablation at Ghent University were reviewed. The AT was drug resistant in 4 out of 9 horses. In 8 out of 9 horses, AT originated from a localized macro-reentrant circuit (n = 5) or a focal source (n = 3) located at the transition between the right atrium and the caudal vena cava. In these 8 horses, local radiofrequency catheter ablation resulted in the termination of AT. At follow-up, 6 out of 8 horses remained free of recurrence. Differentiation between focal and macro-reentrant AT in horses is possible using 3D electro-anatomical mapping. In this study, the source of right atrial AT in horses was safely treated by radiofrequency catheter ablation.
Sections du résumé
BACKGROUND
BACKGROUND
Atrial tachycardia (AT) can be treated by medical or electrical cardioversion but the recurrence rate is high. Three-dimensional electro-anatomical mapping, recently described in horses, might be used to map AT to identify a focal source or reentry mechanism and to guide treatment by radiofrequency ablation.
OBJECTIVES
OBJECTIVE
To describe the feasibility of 3D electro-anatomical mapping and radiofrequency catheter ablation to characterize and treat sustained AT in horses.
ANIMALS
METHODS
Nine horses with sustained AT.
METHODS
METHODS
Records from horses with sustained AT referred for radiofrequency ablation at Ghent University were reviewed.
RESULTS
RESULTS
The AT was drug resistant in 4 out of 9 horses. In 8 out of 9 horses, AT originated from a localized macro-reentrant circuit (n = 5) or a focal source (n = 3) located at the transition between the right atrium and the caudal vena cava. In these 8 horses, local radiofrequency catheter ablation resulted in the termination of AT. At follow-up, 6 out of 8 horses remained free of recurrence.
CONCLUSIONS AND CLINICAL IMPORTANCE
CONCLUSIONS
Differentiation between focal and macro-reentrant AT in horses is possible using 3D electro-anatomical mapping. In this study, the source of right atrial AT in horses was safely treated by radiofrequency catheter ablation.
Identifiants
pubmed: 35686355
doi: 10.1111/jvim.16473
pmc: PMC9308432
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1481-1490Subventions
Organisme : Bijzonder Onderzoeksfonds
ID : BOF.BAS.2018.0022.01
Organisme : Fonds Wetenschappelijk Onderzoek
ID : 1S56217N
Informations de copyright
© 2022 The Authors. Journal of Veterinary Internal Medicine published by Wiley Periodicals LLC on behalf of American College of Veterinary Internal Medicine.
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