Lesion size index-guided radiofrequency catheter ablation using an impedance-based three-dimensional mapping system to treat sustained atrial tachycardia in a horse.
arrhythmia
electrophysiology
equine cardiology
horse
Journal
Equine veterinary journal
ISSN: 2042-3306
Titre abrégé: Equine Vet J
Pays: United States
ID NLM: 0173320
Informations de publication
Date de publication:
21 Oct 2024
21 Oct 2024
Historique:
received:
27
06
2024
accepted:
19
09
2024
medline:
22
10
2024
pubmed:
22
10
2024
entrez:
22
10
2024
Statut:
aheadofprint
Résumé
Sustained atrial tachycardia at an atrial rate of 191/min on the surface ECG was detected in a 6-year-old Warmblood mare. The vectorcardiogram obtained from a 12-lead ECG suggested a caudo-dorsal right atrial origin of the arrhythmia. Impedance-based three-dimensional electro-anatomical mapping, using the EnSite™ Precision Cardiac Mapping System revealed a clockwise macro-reentry around a line of conduction block in the caudomedial right atrium. Ten radiofrequency applications were applied to isolate the caudal vena cava myocardial sleeves at a power of 35 W and mean contact force of 14 ± 3 g until a lesion size index of 6 was reached. Sinus rhythm was restored at the first energy application. Successful isolation was confirmed by demonstrating entrance and exit block. Holter monitoring 5 days post-ablation revealed no abnormalities. To date, 9 months after treatment, no recurrence has been observed. The use of lesion size index-guided ablation and isolation of the arrhythmogenic substrate in the caudal vena cava may minimise the risk of recurrence.
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Subventions
Organisme : Bijzonder Onderzoeksfonds UGent
ID : 01B05818
Organisme : Fonds Wetenschappelijk Onderzoek
ID : 1S71521N
Organisme : Fonds Wetenschappelijk Onderzoek
ID : 1SE9122N
Informations de copyright
© 2024 EVJ Ltd.
Références
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