Review of left-to-right shunting patent ductus arteriosus and short term outcome in 98 dogs

Van Israël, N., French, A.T., Dukes-McEwan, J. and Corcoran, B.M. (2002) Review of left-to-right shunting patent ductus arteriosus and short term outcome in 98 dogs. Journal of Small Animal Practice, 43(9), pp. 395-400. (doi: 10.1111/j.1748-5827.2002.tb00090.x)

Abstract

The case records of 98 dogs with a left-to-right shunting patent ductus arteriosus (PDA) were reviewed. There were 35 breeds represented, with a female to male ratio of 3:1. Forty per cent of the dogs were older than one year at initial presentation and 31 per cent had clinical signs attributable to PDA. A left heart base continuous murmur of grade IV/VI or higher was noted in 90 per cent of the dogs. On electrocardiography, the most common abnormalities were tall R waves (63 per cent) and deep QII waves (62 per cent). The radiographic triad of dilation of the descending aorta with enlargement of the main pulmonary artery segment and left atrium, typical of PDA, was noted in only 26 per cent of cases. Two-dimensional (2D) and M-mode echocardiography detected left atrial enlargement (35 per cent) and an increased left ventricular diameter in diastole (82 per cent) and systole (84 per cent) as the most common abnormalities. Doppler echocardiography demonstrated increased aortic outflow velocities in 66 per cent of cases. The overall short-term successful outcome in this study was 95 per cent. There was no significant difference between surgical ductal ligation using a standard technique or the Jackson-Henderson technique in terms of survival, occurrence of haemorrhage or residual shunting. The number of interventional procedures used in this study was too low for statistical comparison, but there appeared to be a trend towards a higher rate of residual shunting and a lower fatality rate using a coil occlusion technique.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: French, Professor Anne
• Authors: Van Israël, N., French, A.T., Dukes-McEwan, J., and Corcoran, B.M.
• College/School: College of Medical Veterinary and Life Sciences > School of Biodiversity, One Health & Veterinary Medicine
• Journal Name: Journal of Small Animal Practice
• Publisher: Wiley-Blackwell Publishing Ltd.
• ISSN: 0022-4510
• ISSN (Online): 1748-5827