Peer-reviewed veterinary case report
Partial atrioventricular canal heart defect in a 9-month-old dog
By Santamarina, G et al.·Published in The Journal of small animal practice·2002·Departamento de Patologia Animal, Spain·View original on PubMed →
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Original publication title: Partial atrioventricular canal defect in a dog.
- Species:
- dog
Plain-English summary
A 9-month-old female English Setter was diagnosed with a partial atrioventricular canal defect, which is a heart condition where blood flows improperly between the heart chambers. The dog showed no noticeable symptoms, even though tests revealed significant enlargement of the right side of the heart and increased blood flow to the lungs. An echocardiogram helped confirm the diagnosis and assess the severity of the condition. The findings suggest that some dogs with this heart defect may not show any signs of illness during their early years, despite having a significant blood flow issue.
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Abstract
A case of a partial atrial canal defect is described in a nine-month-old female English setter. The patient had a large ostium primum atrial septal defect and a concurrent malformation of the mitral valve. Electrocardiographic and radiographic findings were suggestive of marked enlargement of the right heart and pulmonary overcirculation. Definitive diagnosis and assessment of the haemodynamic consequences were made using echocardiography. The magnitude of the left-to-right intracardiac shunt was estimated by measuring the pulmonary to systemic flow ratio (Qp/Qs) from Doppler-derived pulmonary and aortic blood flow. The results of this report suggest that dogs with a partial atrioventricular canal defect and concurrent mild mitral regurgitation may exhibit no clinical signs during the first years of life, even in cases with a Qp/Qs ratio of greater than 2.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/11833818/