| Autor: |
Joanne J.A. van Bavel, Henriëtte D.M. Beekman, Arend Schot, Philippe C. Wouters, Maarten G. van Emst, Tim Takken, Marcel A.G. van der Heyden, Marc A. Vos |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
International Journal of Cardiology: Heart & Vasculature, Vol 44, Iss , Pp 101169- (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2352-9067 |
| DOI: |
10.1016/j.ijcha.2022.101169 |
| Popis: |
Background: A preclinical model standardized at different remodeling stages after AV block induction in awake state is suitable for the evaluation of improved cardiac devices. We studied exercise-induced cardiorespiratory parameters at three different timepoints after inducing AV block in dogs. Methods: Mongrel dogs (n = 12) were placed on a treadmill with a 10% incline and performed a moderate exercise protocol (10-minute run at 6 km/h). Dogs ran at sinus rhythm (SR), at two days (AVB2d, initiation of remodeling), three weeks (CAVB3) and six weeks (CAVB6, completed remodeling) after AV block. Results: All dogs completed the exercise protocol at SR, CAVB3 and CAVB6, while 6/12 dogs at AVB2d failed to complete the exercise protocol. The atrial rate was higher at all AV block timepoints (126 ± 20 to 141 ± 19 bpm at rest and 221 ± 10 to 231 ± 13 bpm during exercise) compared to SR (100 ± 29 bpm at rest and 162 ± 28 bpm during exercise, p |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
