Subaortic stenosis and mitral dysplasia in three Black Russian Terrier puppies

J. Pikula, J. Pikulova, H. Bandouchova, P. Kohout, K. Najman, F. Tichy and F. Treml
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J. Pikula: University of Veterinary and Pharmaceutical Sciences, Brno, Czech Republic
J. Pikulova: Private Veterinary Practice, Kurim, Czech Republic
H. Bandouchova: Private Veterinary Practice, Kurim, Czech Republic
P. Kohout: University of Veterinary and Pharmaceutical Sciences, Brno, Czech Republic
K. Najman: Veterinary Hospital AA-Vet, Prague, Czech Republic
F. Tichy: University of Veterinary and Pharmaceutical Sciences, Brno, Czech Republic
F. Treml: University of Veterinary and Pharmaceutical Sciences, Brno, Czech Republic

Veterinární medicína, 2005, vol. 50, issue 7, 321-326

Abstract: A combined congenital heart defect of aortic stenosis and mitral dysplasia was diagnosed in three Black Russian Terrier puppies two months old. The aortic stenosis component included both fixed and dynamic obstructions. The fixed obstruction was subvalvularly located at the entrance to the left ventricular outflow tract. The dynamic obstruction was caused by the septal leaflet of the mitral valve protruding into the left ventricular outflow tract. Mitral dysplasia resulted in mitral insufficiency leading to regurgitation through the mitral valve closer to the septal side. The maximum pressure gradient across the aortic valve amounting to 103 mmHg measured in one puppy was consistent with the most severe grade of stenosis. The diagnosis was confirmed by autopsy in all three puppies that were males and originated in one litter, so genetic influences are supposed.

Keywords: congenital heart defects; left ventricular outflow tract; malformation of atrioventricular valves (search for similar items in EconPapers)
Date: 2005
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlvet:v:50:y:2005:i:7:id:5630-vetmed

DOI: 10.17221/5630-VETMED

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