| Autor: |
Claretti M, , Piantedosi D, Piscitelli A, Serranoundefined, Lopez B, Boz E, Mazzoni L, Deundefined, Rosa A, Navalonundefined, Calvo I, Ciaramella P, Bussadori C |
| Přispěvatelé: |
European College of Veterinary Internal Medicine - Companion Animals, Claretti M, , Piantedosi, D, Piscitelli, A, Serrano , Lopez, B, Boz, E, Mazzoni, L, De , Rosa A, Navalon , Calvo, I, Ciaramella, P, Bussadori, C |
| Rok vydání: |
2019 |
| Popis: |
One hundred and twenty dogs were enrolled to value the effect of loading condition changes on left ventricular volumes before and 24 hours after the patent ductus arteriosus (PDA) occlusion by ACDO using standard echocardiography. The animals were divided in pure breed (n=94) and mixed breed (n=26); subsequently, the pure-breed dogs were divided on the basis of the size of the breed of belonging in 3 groups (small size n=36; medium size n=8; large size n=50). Moreover, the animals were divided in three classes based on their age: until 6 months; 6–12 months; over 12 months. A significant reduction of all the examined parameters (LVIDd, LVIDs, EDV, ESV, EDVI, ESVI, FS) was observed after ductal closure. The evaluation of the relative percentage difference (RDP) of the echocardiographic parameters showed at 24 hours after the closure, a significant reduction higher in small size breed than in large size breed dogs. No significant difference related to breed size was observed only for RPD_FS variable. A significant interaction effect, between breed size and age classes, was observed only for RPD_EDVI (F=3.4; p=0.039). Until six months of age there was no significant difference in RPD_EDVI reduction, but over 6 months a significant reduction between small size and large size breed dogs at 24 hours from the occlusion was observed. In conclusion, our data seem to indicate that small-breed dogs show a greater tolerance to congenital volume overload, and for this reason it could be possible to delay the PDA closure of a few months, allowing weight gain that makes easier the interventional procedure. On the other hand, the large-breed dogs should be submitted to ductal closure as soon as possible, in order to avoid an excessive LV wall stress. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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