Electroanatomical Conduction Characteristics of Pig Myocardial Tissue Derived from High-Density Mapping.
conduction velocity
heart
pig
ultra-high-density mapping
voltage
Journal
Journal of clinical medicine
ISSN: 2077-0383
Titre abrégé: J Clin Med
Pays: Switzerland
ID NLM: 101606588
Informations de publication
Date de publication:
28 Aug 2023
28 Aug 2023
Historique:
received:
25
05
2023
revised:
19
08
2023
accepted:
22
08
2023
medline:
9
9
2023
pubmed:
9
9
2023
entrez:
9
9
2023
Statut:
epublish
Résumé
Ultra-high-density mapping systems allow more precise measurement of the heart chambers at corresponding conduction velocities (CVs) and voltage amplitudes (VAs). Our aim for this study was to define and compare a basic value set for unipolar CV and VA in all four heart chambers and their separate walls in healthy, juvenile porcine hearts using ultra-high-density mapping. We used the Rhythmia Mapping System to create electroanatomical maps of four pig hearts in sinus rhythm. CVs and VAs were calculated for chambers and wall segments with overlapping circular areas (radius of 5 mm). We analysed 21 maps with a resolution of 1.4 points/mm In healthy porcine hearts, the left chambers showed higher VAs and CVs than the right. CV differs mainly within the right chambers and VA differs only within the ventricles. A slightly positive linear correlation was found between slow CVs and low VAs.
Sections du résumé
BACKGROUND
BACKGROUND
Ultra-high-density mapping systems allow more precise measurement of the heart chambers at corresponding conduction velocities (CVs) and voltage amplitudes (VAs). Our aim for this study was to define and compare a basic value set for unipolar CV and VA in all four heart chambers and their separate walls in healthy, juvenile porcine hearts using ultra-high-density mapping.
METHODS
METHODS
We used the Rhythmia Mapping System to create electroanatomical maps of four pig hearts in sinus rhythm. CVs and VAs were calculated for chambers and wall segments with overlapping circular areas (radius of 5 mm).
RESULTS
RESULTS
We analysed 21 maps with a resolution of 1.4 points/mm
CONCLUSIONS
CONCLUSIONS
In healthy porcine hearts, the left chambers showed higher VAs and CVs than the right. CV differs mainly within the right chambers and VA differs only within the ventricles. A slightly positive linear correlation was found between slow CVs and low VAs.
Identifiants
pubmed: 37685665
pii: jcm12175598
doi: 10.3390/jcm12175598
pmc: PMC10488835
pii:
doi:
Types de publication
Journal Article
Langues
eng
Subventions
Organisme : Boston Scientific (France)
ID : #1782252
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