title: Complete transposition of the great arteries with double outlet right ventricle in a dog.
abstract: 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.
authors.affiliation: Department of Clinical Sciences, College of Veterinary Medicine, Oregon State University, 105 Magruder Hall, 700 SW 30th Street, Corvallis, OR 97331, USA.
authors.forename: S T
authors.initials: ST
authors.lastname: Koo
authors.affiliation: Department of Clinical Sciences, College of Veterinary Medicine, Oregon State University, 105 Magruder Hall, 700 SW 30th Street, Corvallis, OR 97331, USA. Electronic address: Nicole.leblanc@oregonstate.edu.
authors.forename: N L
authors.initials: NL
authors.lastname: LeBlanc
authors.affiliation: Department of Clinical Sciences, College of Veterinary Medicine, Oregon State University, 105 Magruder Hall, 700 SW 30th Street, Corvallis, OR 97331, USA.
authors.forename: K F
authors.initials: KF
authors.lastname: Scollan
authors.affiliation: Department of Clinical Sciences, College of Veterinary Medicine, Oregon State University, 105 Magruder Hall, 700 SW 30th Street, Corvallis, OR 97331, USA.
authors.forename: D D
authors.initials: DD
authors.lastname: Sisson
mesh_terms: D000818:Animals; D001011:Aorta / Q000002:abnormalities; D004285:Dogs / Q000002:abnormalities*; D004310:Double Outlet Right Ventricle / Q000000981:diagnostic imaging / Q000662:veterinary*; D004452:Echocardiography / Q000662:veterinary; D008297:Male; D011651:Pulmonary Artery / Q000002:abnormalities
keywords: Bronchoesophageal collateral vessels; Cardiac-gated CT scan; Pulmonic hypoplasia; Ventricular septal defect