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Case report - azygos vein drainage into the left atrium in a dog with cor triatriatum dexter and a patent foramen ovale


Dennler, Matthias; Matos, José Novo; Gent, Thomas C; Knell, Sebastian Christoph; Schertenleib, Therese Irene; Glaus, Toni M (2019). Case report - azygos vein drainage into the left atrium in a dog with cor triatriatum dexter and a patent foramen ovale. Journal of Veterinary Cardiology, 26:1-9.

Abstract

A 2-year-old Airedale terrier was presented with exercise intolerance since birth and newly developed chylous pleural effusion. Imaging procedures including echocardiography, cardiac magnetic resonance imaging, computed tomography, and selective angiography revealed an aberrant connection of the azygos vein and the left atrium, a membrane in the right atrium consistent with cor triatriatum dexter, and a patent foramen ovale with right-to-left shunt. Balloon dilation of the membrane in the right atrium seemed to result in transient improvement of exercise tolerance compared with the previous 2 years. When chylothorax relapsed after three months, the dog was euthanized. Necropsy confirmed the azygos vein to left atrial connection, the patent foramen ovale, and the cor triatriatum dexter.

Abstract

A 2-year-old Airedale terrier was presented with exercise intolerance since birth and newly developed chylous pleural effusion. Imaging procedures including echocardiography, cardiac magnetic resonance imaging, computed tomography, and selective angiography revealed an aberrant connection of the azygos vein and the left atrium, a membrane in the right atrium consistent with cor triatriatum dexter, and a patent foramen ovale with right-to-left shunt. Balloon dilation of the membrane in the right atrium seemed to result in transient improvement of exercise tolerance compared with the previous 2 years. When chylothorax relapsed after three months, the dog was euthanized. Necropsy confirmed the azygos vein to left atrial connection, the patent foramen ovale, and the cor triatriatum dexter.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:05 Vetsuisse Faculty > Institute of Veterinary Pathology
05 Vetsuisse Faculty > Veterinary Clinic > Department of Small Animals
05 Vetsuisse Faculty > Veterinary Clinic > Department of Clinical Diagnostics and Services
Dewey Decimal Classification:570 Life sciences; biology
630 Agriculture
Scopus Subject Areas:Life Sciences > Physiology
Health Sciences > General Veterinary
Uncontrolled Keywords:Cardiac CT; Cardiac MRI; Contrast echocardiography; Giant Eustachian valve
Language:English
Date:10 October 2019
Deposited On:03 Jan 2020 16:54
Last Modified:28 Aug 2020 07:25
Publisher:Elsevier
ISSN:1760-2734
OA Status:Closed
Publisher DOI:https://doi.org/10.1016/j.jvc.2019.09.002
PubMed ID:31747625

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