Left coronary aneurysmal dilation and subaortic stenosis in a dog

Authors: Hernandez, Juan L; Bélanger, Marie-Claude; Benoit-Biancamano, Marie-Odile; Pibarot, Philippe
Abstract: A 6-month-old German shepherd dog was referred for evaluation of a cardiac murmur. Upon physical examination, the auscultated heart rate was 120 beats/min, and a grade IV/VI systolic heart murmur with a point of maximal intensity over the left heart base radiating up the neck was heard. The standard echocardiographic examination showed subaortic stenosis and an anechoic tubular structure extending from the sinus of Valsalva to the left ventricular posterior wall. Aneurysmal left coronary artery (CA) was confirmed by angiography. The dog was euthanized and post-mortem examination showed severe dilatation of the proximal left CA and confirmed the subaortic stenosis. Histopathology did not demonstrate abnormalities in the walls of the CA, aorta or pulmonary artery. The exact cause of the CA aneurysmal dilation remains unknown. Subaortic stenosis, elevated coronary vascular resistance or a congenital anomaly may have contributed to the dilation. To our knowledge, coronary aneurysmal dilation has never been described in dogs. Standard echocardiography provides reliable information on coronary anatomy.
Document Type: Article de recherche
Issue Date: 1 June 2016
Open Access Date: Restricted access
Document version: VoR
Permalink: http://hdl.handle.net/20.500.11794/5228
This document was published in: Journal of Veterinary Cardiology, Vol. 10 (1), 75–79 (2008)
http://dx.doi.org/10.1016/j.jvc.2007.12.001
Société italienne de médecine des animaux de compagnie
Alternative version: 10.1016/j.jvc.2007.12.001
http://www.ncbi.nlm.nih.gov/pubmed/18485856
Collection:Articles publiés dans des revues avec comité de lecture

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