Three dimensional ultra-high-density electro-anatomical cardiac mapping in horses: methodology.
3D electro-anatomical mapping
arrhythmia
electrophysiology
high-resolution mapping
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:
Sep 2020
Sep 2020
Historique:
received:
11
07
2019
accepted:
07
01
2020
revised:
26
11
2019
pubmed:
19
1
2020
medline:
6
8
2020
entrez:
19
1
2020
Statut:
ppublish
Résumé
Ultra-high-density cardiac mapping allows very accurate characterisation of atrial and ventricular electrophysiology and activation timing. To describe the technique and evaluate the feasibility of magnetic electro-anatomical mapping of the equine heart. In vivo experimental method development. A mapping system using an 8.5F bidirectional deflectable catheter with a deployable mini-basket (3-22 mm) containing 64 electrodes divided over eight splines was evaluated. Based upon predefined beat acceptance criteria, the system automatically acquires endocardial electrograms and catheter location information. Electro-anatomical maps were acquired from four horses in sinus rhythm under general anaesthesia. All endocardial areas within each chamber could be reached. Access to the left atrium required the use of a deflectable sheath. With the exception of the left atrial map of horse 1, all four chambers in all four horses could be mapped. Optimisation of the beat acceptance criteria led to a reduction in manual correction of the automatically accepted beats from 13.1% in the first horse to 0.4% of the beats in the last horse. Only a limited number of horses were included in the study. Ultra-high-density 3D electro-anatomical mapping is feasible in adult horses and is a promising tool for electrophysiological research and characterisation of complex arrhythmias.
Sections du résumé
BACKGROUND
BACKGROUND
Ultra-high-density cardiac mapping allows very accurate characterisation of atrial and ventricular electrophysiology and activation timing.
OBJECTIVE
OBJECTIVE
To describe the technique and evaluate the feasibility of magnetic electro-anatomical mapping of the equine heart.
STUDY DESIGN
METHODS
In vivo experimental method development.
METHODS
METHODS
A mapping system using an 8.5F bidirectional deflectable catheter with a deployable mini-basket (3-22 mm) containing 64 electrodes divided over eight splines was evaluated. Based upon predefined beat acceptance criteria, the system automatically acquires endocardial electrograms and catheter location information. Electro-anatomical maps were acquired from four horses in sinus rhythm under general anaesthesia.
RESULTS
RESULTS
All endocardial areas within each chamber could be reached. Access to the left atrium required the use of a deflectable sheath. With the exception of the left atrial map of horse 1, all four chambers in all four horses could be mapped. Optimisation of the beat acceptance criteria led to a reduction in manual correction of the automatically accepted beats from 13.1% in the first horse to 0.4% of the beats in the last horse.
MAIN LIMITATIONS
CONCLUSIONS
Only a limited number of horses were included in the study.
CONCLUSION
CONCLUSIONS
Ultra-high-density 3D electro-anatomical mapping is feasible in adult horses and is a promising tool for electrophysiological research and characterisation of complex arrhythmias.
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
765-772Subventions
Organisme : Fonds Wetenschappelijk Onderzoek
ID : 1134917N
Organisme : Fonds Wetenschappelijk Onderzoek
ID : 1S56217N
Informations de copyright
© 2020 EVJ Ltd.
Références
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