Document Type
Journal Article
Date of this Version
7-2004
Publication Source
Journal of Veterinary Internal Medicine
Volume
18
Issue
4
Start Page
510
Last Page
514
DOI
10.1111/j.1939-1676.2004.tb02576.x
Abstract
Medical records of 55 dogs with 1 or more vascular rings around the esophagus and trachea were reviewed to determine the nature and frequency of related vascular anomalies and to determine the reliability of tracheal deviation on radiographs for the diagnosis of persistent right aortic arch (PRAA). Fifty-two (95%) of the 55 dogs had PRAA. Of the 52 dogs with PRAA, 44% had coexisting compressive arterial anomalies: 17 had retroesophageal left subclavian artery and 6 had double aortic arch with atretic left arch. Characteristic tracheal deviation was consistently present in dogs with PRAA. Moderate or marked focal leftward curvature of the trachea near the cranial border of the heart in dorsoventral (DV) or ventrodorsal (VD) radiographs was found in 100% of available radiographs of 27 dogs with PRAA. Moderate or marked focal narrowing of the trachea also was noted in 74% of DV or VD radiographs and 29% of lateral radiographs of the dogs. Tracheal position in 30 of 30 dogs with megaesophagus and 62 of 63 control dogs was midline or rightward in VD or DV radiographs. Histology in a neonatal dog with PRAA revealed evidence of tracheal deviation and compression even before birth. Focal leftward deviation of the trachea near the cranial border of the heart in DV or VD radiographs is a reliable sign of PRAA in young dogs that regurgitate after eating solid food, and contrast esophagrams are not necessary to confirm the diagnosis of vascular ring compression.
Copyright/Permission Statement
Copyright © 2004 The Authors. Journal of Veterinary Internal Medicine published by Wiley Periodicals, Inc. on behalf of American College of Veterinary Internal Medicine.
This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
Keywords
Congenital heart diseasel, Esophageal compressionl, Megaesophagusl, Radiographic diagnosisl, Vascular rings
Recommended Citation
Buchanan, J. W. (2004). Tracheal Signs and Associated Vascular Anomalies in Dogs With Persistent Right Aortic Arch. Journal of Veterinary Internal Medicine, 18 (4), 510-514. http://dx.doi.org/10.1111/j.1939-1676.2004.tb02576.x
Included in
Animal Diseases Commons, Cardiology Commons, Cardiovascular Diseases Commons, Veterinary Medicine Commons
Date Posted: 22 December 2016
This document has been peer reviewed.