Assessment of P Wave Indices in Healthy Standardbred Horses.
ECG
cardiac
electrocardiography
equine
Journal
Animals : an open access journal from MDPI
ISSN: 2076-2615
Titre abrégé: Animals (Basel)
Pays: Switzerland
ID NLM: 101635614
Informations de publication
Date de publication:
16 Mar 2023
16 Mar 2023
Historique:
received:
16
02
2023
revised:
11
03
2023
accepted:
11
03
2023
medline:
30
3
2023
entrez:
29
3
2023
pubmed:
30
3
2023
Statut:
epublish
Résumé
P wave indices are used as non-invasive electrocardiographic markers of atrial remodelling in humans. Few studies have investigated their use in animals. The aim of this study was to measure P wave duration and P wave dispersion (Pd) in healthy standardbred horses and investigate variables that might influence these measurements. A 12-lead electrocardiogram was recorded at rest and P wave indices were calculated in 53 horses. A general linear model was used to investigate the main effects: age, bodyweight, sex, resting heart rate, presence of a murmur, exercise status and the number of years raced. There were significant associations with exercise status for both the maximum P wave duration and Pd, with both values being increased in strenuously exercising versus non-active horses. Furthermore, a significant moderate positive correlation was identified between the duration of exercise (number of years raced) and both Pmax and Pd. No other significant associations were identified. These findings are similar to those reported in elite human athletes versus sedentary individuals. The increases in these P wave indices most likely occur due to prolongation and heterogeneity in atrial conduction time, which are associated with structural and electrical remodelling, and may explain the increased risk of atrial fibrillation in athletic horses.
Identifiants
pubmed: 36978611
pii: ani13061070
doi: 10.3390/ani13061070
pmc: PMC10044338
pii:
doi:
Types de publication
Journal Article
Langues
eng
Subventions
Organisme : University of Adelaide
ID : N/A
Organisme : Racing Victoria
ID : N/A
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