Arteriovenous shunts resembling patent ductus arteriosus in dogs: 3 cases.
Three dogs presented for the evaluation of cardiac murmurs were diagnosed with aberrant arteriovenous shunts. All cases demonstrated the following findings: 1) relatively soft continuous murmur loudest at the left heart base resembling patent ductus arteriosus (PDA); 2) shunt flow signals in the pulmonary artery on echocardiography; and 3) no PDA on selective angiography, but evidence of anomalous shunting vessels from thoracic aorta to pulmonary vasculature. An aberrant arteriovenous shunt should be considered when a continuous murmur of relatively small intensity is heard.
Fujii
Yoko
Y
Department of Surgery 1, School of Veterinary Medicine, Azabu University, Kanagawa 229-8501, Japan. fujiiy@azabu-u.ac.jp
Aoki
Takuma
T
Takano
Hiroshi
H
Ishikawa
Ryokichi
R
Wakao
Yoshito
Y
D000818:Animals; D001013:Aorta, Thoracic / Q000002:abnormalities; D001165:Arteriovenous Malformations / Q000175:diagnosis / Q000662:veterinary*; D003937:Diagnosis, Differential; D004283:Dog Diseases / Q000175:diagnosis*; D004285:Dogs; D004374:Ductus Arteriosus, Patent / Q000175:diagnosis / Q000662:veterinary*; D015150:Echocardiography, Doppler / Q000662:veterinary; D005260:Female; D006337:Heart Murmurs / Q000662:veterinary; D008297:Male; D011651:Pulmonary Artery / Q000002:abnormalities