DAWN E. EVANS, THOMAS N. TULLY JR., KEITH N. STRICKLAND, JAMIE F. WILLIAMS, GREGORY A. RICH
Journal of Avian Medicine and Surgery 15 (2), 101-106, (1 June 2001) https://doi.org/10.1647/1082-6742(2001)015[0101:CCAIVS]2.0.CO;2
KEYWORDS: ventricular septal defect, congenital cardiovascular anomaly, Avian, psittacine, umbrella cockatoo, Moluccan cockatoo, Cacatua alba, Cacatua moluccensis
Cardiovascular anomalies have been reported rarely in psittacine birds. This report describes 2 cockatoos, each presenting with a heart murmur, tachycardia, and a bounding pulse. Clinical signs associated with these patients included cyanosis of the cere and, in 1 bird, ascites. Echocardiographic evaluations of both birds suggested ventricular septal defects, which corresponded to radiographic evidence of an enlarged cardiac silhouette. Pathologic evaluation revealed a ventricular septal defect and persistent truncus arteriosus in an umbrella cockatoo (Cacatua alba), whereas a Moluccan cockatoo (Cacatua moluccensis) had a subvalvular septal defect and aortic hypoplasia. Congenital cardiovascular anomalies should be considered when young psittacine birds are presented with heart murmurs and signs of circulatory dysfunction.