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Pulmonary arteriovenous malformation and a concurrent persistent ductus arteriosus in a dobermann

Gitte Mampaey, Emmelie Stock (UGent) , Kaatje Kromhout (UGent) , Lisa Stammeleer (UGent) , Tom Roggeman (UGent) and Pascale Smets (UGent)
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Organization
Abstract
Introduction - Pulmonary arteriovenous malformation (PAVM) connecting a pulmonary artery to pulmonary vein is a rare congenital disorder that has only been described in one dog.(1) This case presentation describes the radiographic and computed tomography (CT) findings, treatment and outcome in a dog with a PAVM and a concurrent persistent ductus arteriosus (PDA). Case description - A 7-week-old male Doberman was presented with tachypnea, dyspnea and a 6/6, left cranial, continuous heart murmur. Thoracic radiographs revealed severe, left-sided cardiomegaly, presence of a rounded soft tissue opacity in the caudodorsal aspect of the thoracic cavity and signs of left-sided congestive heart failure (Figure 1). Clinical signs of heart failure were medically controlled. Echocardiography and CT demonstrated a left-to-right shunting PDA in combination with a right-to-left shunt between the right caudal pulmonary artery and the right caudal pulmonary vein (Figure 2). Arterial blood gasses (ABG) revealed hypoxemia (PaO2 = 66 mmHg). Transcatheter occlusion of the PDA using an Amplatz® Canine Duct Occluder was performed. Results - Four months post-operatively, echocardiography showed normal cardiac structure and size with complete PDA closure. Thoracic radiographs revealed absence of the rounded opacity, no cardiomegaly and no vascular congestion. The previously described PAVM was no longer visualized on repeated CT and the ABG were within normal limits (PaO2 = 100mmHg). Discussion - Similar radiographic findings have been described in people with PAVM.(2,3) This is the first description of PAVM in combination with a PDA in a dog, including spontaneous disappearance of the shunt and normalization of ABG after PDA occlusion.

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MLA
Mampaey, Gitte, et al. “Pulmonary Arteriovenous Malformation and a Concurrent Persistent Ductus Arteriosus in a Dobermann.” European Veterinary Conference Voorjaarsdagen 2022, Abstracts, 2022.
APA
Mampaey, G., Stock, E., Kromhout, K., Stammeleer, L., Roggeman, T., & Smets, P. (2022). Pulmonary arteriovenous malformation and a concurrent persistent ductus arteriosus in a dobermann. European Veterinary Conference Voorjaarsdagen 2022, Abstracts. Presented at the European Veterinary Conference Voorjaarsdagen, Amsterdam, the Netherlands.
Chicago author-date
Mampaey, Gitte, Emmelie Stock, Kaatje Kromhout, Lisa Stammeleer, Tom Roggeman, and Pascale Smets. 2022. “Pulmonary Arteriovenous Malformation and a Concurrent Persistent Ductus Arteriosus in a Dobermann.” In European Veterinary Conference Voorjaarsdagen 2022, Abstracts.
Chicago author-date (all authors)
Mampaey, Gitte, Emmelie Stock, Kaatje Kromhout, Lisa Stammeleer, Tom Roggeman, and Pascale Smets. 2022. “Pulmonary Arteriovenous Malformation and a Concurrent Persistent Ductus Arteriosus in a Dobermann.” In European Veterinary Conference Voorjaarsdagen 2022, Abstracts.
Vancouver
1.
Mampaey G, Stock E, Kromhout K, Stammeleer L, Roggeman T, Smets P. Pulmonary arteriovenous malformation and a concurrent persistent ductus arteriosus in a dobermann. In: European Veterinary Conference Voorjaarsdagen 2022, Abstracts. 2022.
IEEE
[1]
G. Mampaey, E. Stock, K. Kromhout, L. Stammeleer, T. Roggeman, and P. Smets, “Pulmonary arteriovenous malformation and a concurrent persistent ductus arteriosus in a dobermann,” in European Veterinary Conference Voorjaarsdagen 2022, Abstracts, Amsterdam, the Netherlands, 2022.
@inproceedings{8750252,
  abstract     = {{Introduction - Pulmonary arteriovenous malformation (PAVM) connecting a pulmonary artery to pulmonary vein is a rare congenital disorder that has only been described in one dog.(1) This case presentation describes the radiographic and computed tomography (CT) findings, treatment and outcome in a dog with a PAVM and a concurrent persistent ductus arteriosus (PDA).
Case description - A 7-week-old male Doberman was presented with tachypnea, dyspnea and a 6/6, left cranial, continuous heart murmur. Thoracic radiographs revealed severe, left-sided cardiomegaly, presence of a rounded soft tissue opacity in the caudodorsal aspect of the thoracic cavity and signs of left-sided congestive heart failure (Figure 1). Clinical signs of heart failure were medically controlled. Echocardiography and CT demonstrated a left-to-right shunting PDA in combination with a right-to-left shunt between the right caudal pulmonary artery and the right caudal pulmonary vein (Figure 2). Arterial blood gasses (ABG) revealed hypoxemia (PaO2 = 66 mmHg). Transcatheter occlusion of the PDA using an Amplatz® Canine Duct Occluder was performed.
Results - Four months post-operatively, echocardiography showed normal cardiac structure and size with complete PDA closure. Thoracic radiographs revealed absence of the rounded opacity, no cardiomegaly and no vascular congestion. The previously described PAVM was no longer visualized on repeated CT and the ABG were within normal limits (PaO2 = 100mmHg).
Discussion - Similar radiographic findings have been described in people with PAVM.(2,3) This is the first description of PAVM in combination with a PDA in a dog, including spontaneous disappearance of the shunt and normalization of ABG after PDA occlusion.}},
  author       = {{Mampaey, Gitte and Stock, Emmelie and Kromhout, Kaatje and Stammeleer, Lisa and Roggeman, Tom and Smets, Pascale}},
  booktitle    = {{European Veterinary Conference Voorjaarsdagen 2022, Abstracts}},
  language     = {{eng}},
  location     = {{Amsterdam, the Netherlands}},
  title        = {{Pulmonary arteriovenous malformation and a concurrent persistent ductus arteriosus in a dobermann}},
  year         = {{2022}},
}