Vascular ring anomalies in cats: 20 cases (2000-2018)

Ana Bascuñán, Penny J. Regier, J. Brad Case, Ameet Singh, Ingrid Balsa, James Flanders, Kelley Thieman-Mankin, Kathleen M. Ham

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Abstract

Objective: To report the clinical characteristics, types of vascular ring anomalies (VRA), operative findings, complications, and survival after surgical treatment of cats with VRA. Study design: Retrospective, multi-institutional case series. Animals: Client- or shelter-owned cats presenting to academic, referral veterinary institutions. Methods: Medical records of cats with VRA that underwent surgical treatment were reviewed. Signalment, relevant medical history, clinical signs, diagnostic imaging, surgical findings, complications, and survival were recorded. Results: Twenty cats with VRA were included. Vascular ring anomalies were most commonly (75% [15/20]) diagnosed in cats less than 1 year old, with no breed or sex predilection. Regurgitation was the most common clinical sign, present in 18 of 20 (90%) cats. A persistent right aortic arch was diagnosed in 17 of 20 (85%) cats, with concurrent aberrant left subclavian artery in four of the cats. Surgical treatment was associated with survival to discharge in 18 of 20 (90%) cats. Persistent clinical signs were reported in nine of 13 (69%) cats, and radiographic evidence of megaesophagus persisted in four of 13 (31%) cats, with a median follow-up of 275 days after discharge. Conclusion: Persistent right aortic arch was the most commonly diagnosed VRA in cats in this series, although multiple anomalies were observed. Surgical treatment of VRA in cats was associated with a high survival to discharge, although persistence of clinical signs and megaesophagus was noted in 69% and 31% of the cats, respectively. Clinical significance: Surgical treatment of VRA in cats is associated with a high survival rate; however, persistence of clinical signs is an expected outcome.

Original languageEnglish (US)
JournalVeterinary Surgery
DOIs
StateAccepted/In press - Jan 1 2019

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ASJC Scopus subject areas

  • veterinary(all)

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Bascuñán, A., Regier, P. J., Case, J. B., Singh, A., Balsa, I., Flanders, J., Thieman-Mankin, K., & Ham, K. M. (Accepted/In press). Vascular ring anomalies in cats: 20 cases (2000-2018). Veterinary Surgery. https://doi.org/10.1111/vsu.13327