Persistent right aortic arch and aberrant left subclavian artery in a dog

Authors

  • Gabriel Menezes Rodrigues Universidade Federal da Bahia, Escola de Medicina Veterinária e Zootecnia, Programa de Pós-graduação em Ciência Animal nos Trópicos, Ondina – BA, Brazil https://orcid.org/0000-0001-9737-812X
  • Isabella Menezes Gusmão Universidade Federal da Bahia, Escola de Medicina Veterinária e Zootecnia, Programa de Pós-graduação em Ciência Animal nos Trópicos, Ondina – BA, Brazil https://orcid.org/0000-0002-7492-0841
  • Caterina Muramoto Universidade Federal da Bahia, Escola de Medicina Veterinária e Zootecnia, Departamento de Anatomia, Patologia e Clínicas Veterinárias, Ondina – BA, Brazil https://orcid.org/0000-0003-0147-7487
  • Ana Maria Quessada Universidade Paranaense, Programa de Pós-graduação em Ciência Animal com Ênfase em Produtos Bioativos, Umuarama, PR – Brazil https://orcid.org/0000-0003-0577-0808
  • Salviano Tramontim Belettini Universidade Paranaense, Programa de Pós-graduação em Ciência Animal com Ênfase em Produtos Bioativos, Umuarama, PR – Brazil https://orcid.org/0000-0002-0600-5836
  • Luan Vinicius Tezzei Maia Universidade Paranaense, Programa de Pós-graduação em Ciência Animal com Ênfase em Produtos Bioativos, Umuarama, PR – Brazil https://orcid.org/0000-0003-0704-8691
  • Maria Leticia Linhares Machado Universidade Paranaense, Medicina Veterinária, Umuarama – PR, Brazil https://orcid.org/0009-0000-6639-2076
  • João Moreira da Costa-Neto Universidade Federal da Bahia, Escola de Medicina Veterinária e Zootecnia, Departamento de Anatomia, Patologia e Clínicas Veterinárias, Ondina – BA, Brazil https://orcid.org/0000-0003-2679-792X

DOI:

https://doi.org/10.11606/issn.1678-4456.bjvras.2024.211671

Keywords:

Canine, Computed tomography, Esophageal dilation, Regurgitation, Thoracotomy

Abstract

A 1.5-year-old male German Shepherd dog was referred to a Teaching Veterinary Hospital with a chronic history of regurgitation and a previous presumptive diagnosis of megaesophagus. An esophagogram showed partial esophageal dilation, suggesting one vascular ring anomaly. Computed tomography identified a persistent right aortic arch (PRAA) and an aberrant left subclavian artery (ALSA). The patient underwent thoracotomy, ligamentum arteriosum ligation, and debridement of the periesophageal region. The ligation of the ALSA was not carried out because the esophagus was observed to be released entirely during the surgical intervention. Therefore, intervention on the subclavian artery was not necessary. Clinical follow-up occurred on seven, 14, and 30 postoperative days. The dog improved, showing only sporadic regurgitations. Clinical history and complementary exams were essential to establish a diagnosis. The liberation of the esophageal transit during surgery contributed to the decision not to perform the ALSA ligation.

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References

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Published

2024-04-25

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Section

CASE REPORT

How to Cite

1.
Rodrigues GM, Gusmão IM, Muramoto C, Quessada AM, Belettini ST, Maia LVT, et al. Persistent right aortic arch and aberrant left subclavian artery in a dog. Braz. J. Vet. Res. Anim. Sci. [Internet]. 2024 Apr. 25 [cited 2024 Jun. 14];61:e211671. Available from: https://www.revistas.usp.br/bjvras/article/view/211671