Presentation
Presented with parasystolic heart murmur and failure to gain weight.
Patient Data
Age: 5 months
Gender: Female
Category: Domestic dog
Organism: Shih tzu dog
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The cardiac silhouette is moderately enlarged, with a bulge in the region of the main pulmonary artery on the dorsoventral projection. There is a vascular pattern with diffusely enlarged pulmonary vasculature throughout the pulmonary parenchyma.
Case Discussion
Congenital cardiac anomaly - patent ductus arteriosus.
The vascular pattern and cardiac enlargement indicate a left to right shunt, and the bulge in the main pulmonary artery is characteristic of a PDA. Due to the dog's small size (1.6 kg), coiling was not an option. The PDA was surgically ligated successfully.
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