Complete transposition of the great arteries with double outlet right ventricle in a dog

A 2-year old intact male Collie dog presented to the cardiology service at Oregon State University for evaluation of cyanosis and suspected congenital cardiac disease. Echocardiography revealed a constellation of cardiac abnormalities including a single large vessel exiting the right ventricle with...

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Bibliographic Details
Published in:Journal of veterinary cardiology 2016-06, Vol.18 (2), p.179-186
Main Authors: Koo, S.T., LeBlanc, N.L., Scollan, K.F., Sisson, D.D.
Format: Article
Language:English
Subjects:
Animals
Aorta - abnormalities
Bronchoesophageal collateral vessels
Cardiac-gated CT scan
Dogs - abnormalities
Double Outlet Right Ventricle - diagnostic imaging
Double Outlet Right Ventricle - veterinary
Echocardiography - veterinary
Male
Pulmonary Artery - abnormalities
Pulmonic hypoplasia
Ventricular septal defect
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Summary:A 2-year old intact male Collie dog presented to the cardiology service at Oregon State University for evaluation of cyanosis and suspected congenital cardiac disease. Echocardiography revealed a constellation of cardiac abnormalities including a single large vessel exiting the right ventricle with a diminutive left ventricular outflow tract, a ventricular septal defect, and marked concentric right ventricular hypertrophy with moderate right atrial dilation. Cardiac-gated computed tomography confirmed the previous anomalies in addition to supporting a diagnosis of complete transposition of the great arteries, double outlet right ventricle, and pulmonic hypoplasia with a single coronary ostium. Prominent bronchoesophageal collateral vessels were concurrently identified. Clinically, the dog was stable despite mild cyanosis that worsened with exercise; no intervention was elected at the time. This case report describes a rare combination of congenital cardiac defects and the usefulness of cardiac-gated cross-sectional imaging in the anatomic diagnosis.
ISSN:1760-2734
1875-0834
DOI:10.1016/j.jvc.2015.12.005