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Home / Equine Research Bank / J Vet Med Sci / A bronchopulmonary artery fistula in a horse.
The Journal of veterinary medical science2021; 83(8); 1225-1228; doi: 10.1292/jvms.21-0221

A bronchopulmonary artery fistula in a horse.

Abstract: A 24-year-old, Thoroughbred gelding presented with difficulty breathing for a few days and intermittent nose bleeding before dying. At necropsy, the bronchoesophageal artery and the bronchial artery that flowed into the left anterior lobe were tortuous and dilated, and it was found that dilated tortuous branches of the bronchial artery ran over the dorsal and ventral surfaces of the left anterior lobe. Histopathologically, an anastomosis between a muscular artery and an elastic artery were demonstrated, which were identified as bronchial and pulmonary arteries, respectively. Based on the gross and histopathological findings, a bronchopulmonary artery fistula was diagnosed. To the best of our knowledge, this is the first case report of a pulmonary vascular anastomosis in a horse.
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Publication Date: 2021-06-10 PubMed ID: 34108306PubMed Central: PMC8437714DOI: 10.1292/jvms.21-0221Google Scholar: Lookup
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Summary

This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.

This study reports a unique case of bronchopulmonary artery fistula in a horse, which was encountered after the horse had died of complications caused by the same. The findings of this study are based on the necropsy and histopathological examination of the horse.

Background

  • The study involves a clinical case of an older Thoroughbred gelding, characterized by breathing difficulties and occasional nose bleeding. Despite the symptoms persisting for a few days, the horse unfortunately died.

Necropsy Findings

  • The necropsy, which is a post-mortem examination, revealed some abnormal conditions in the horse’s bronchoesophageal artery and the bronchial artery that flowed into the left anterior lobe. These arteries were found to be both tortuous (twisted) and dilated (widened), which isn’t normal.
  • It was also found that the dilated and tortuous extensions of the bronchial artery covered both the dorsal and ventral surfaces of the left anterior lobe.

Microscopic Findings

  • Upon histopathological examination, an unusual connection, or anastomosis, was identified between a muscular artery (the bronchial artery) and an elastic artery (the pulmonary artery). This unusual connection, typically identified as a bronchopulmonary artery fistula, was the primary matter of concern.

Conclusion

  • This study’s findings, based on the gross and histopathological evaluations, led to the diagnosis of the bronchopulmonary artery fistula. As per the researchers’ knowledge, this is the first-ever reported case highlighting the presence of a pulmonary vascular anastomosis—an abnormal connection between blood vessels—in a horse.

Cite This Article

APA
Sano Y, Kuwajima H, Kanai H, Baba C, Azami K, Matsuda K. (2021). A bronchopulmonary artery fistula in a horse. J Vet Med Sci, 83(8), 1225-1228. https://doi.org/10.1292/jvms.21-0221

Publication

The Journal of veterinary medical science
ISSN: 1347-7439
NlmUniqueID: 9105360
Country: Japan
Language: English
Volume: 83
Issue: 8
Pages: 1225-1228

Researcher Affiliations

Sano, Yuto
  • Department of Veterinary Pathology, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan.
Kuwajima, Hikaru
  • Department of Veterinary Pathology, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan.
Kanai, Hiroki
  • Department of Veterinary Pathology, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan.
Baba, Chiemi
  • Department of Veterinary Pathology, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan.
Azami, Kohei
  • Department of Veterinary Pathology, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan.
Matsuda, Kazuya
  • Department of Veterinary Pathology, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan.

MeSH Terms

  • Animals
  • Bronchi
  • Bronchial Arteries
  • Fistula / veterinary
  • Horse Diseases
  • Horses
  • Lung
  • Male
  • Pulmonary Artery

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This article includes 14 references
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Citations

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