{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,9]],"date-time":"2026-03-09T10:25:29Z","timestamp":1773051929893,"version":"3.50.1"},"reference-count":40,"publisher":"Wiley","issue":"S1","license":[{"start":{"date-parts":[[2016,10,12]],"date-time":"2016-10-12T00:00:00Z","timestamp":1476230400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Veterinary Surgery"],"published-print":{"date-parts":[[2016,11]]},"abstract":"<jats:sec><jats:title>Objective<\/jats:title><jats:p>To report the diagnosis, treatment, and short\u2010term outcome in dogs with suspected persistent right aortic arch (PRAA) undergoing thoracoscopy with concurrent esophagoscopy.<\/jats:p><\/jats:sec><jats:sec><jats:title>Study Design<\/jats:title><jats:p>Multi\u2010institutional retrospective case series.<\/jats:p><\/jats:sec><jats:sec><jats:title>Animals<\/jats:title><jats:p>Dogs with suspected PRAA (n=9).<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Medical records were reviewed from 2012 to 2016. Dogs undergoing thoracoscopy for PRAA at 3 referral hospitals were included. Signalment, clinical signs, diagnostic imaging, anesthesia protocol (including the use of one\u2010lung ventilation), surgical approach, complications, and short\u2010term outcome were recorded. Dogs underwent a left\u2010sided intercostal thoracoscopic approach with concurrent intraoperative esophagoscopy. The ligamentum arteriosum (LA) and constricting fibers were divided using a vessel\u2010sealing device using a 3 or 4 port thoracoscopy technique. Visualization and dissection of the LA was aided by transesophageal illumination by esophagoscopy.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Thoracoscopy confirmed PRAA in 9 dogs, with an aberrant left subclavian artery (LS) identified in 5 dogs. Major complications occurred in 2 dogs: postoperative hemorrhage from the LS and esophageal perforation, which resulted in euthanasia. Median follow\u2010up was 250 days (range, 56\u20131,595). Regurgitation resolved in 4 of 8 surviving dogs. One dog had recurrence of regurgitation 1,450 days postoperatively, esophageal compression by the LS was identified, and regurgitation resolved following LS transection.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Esophagoscopy aided identification and dissection of the LA in all cases. Due to the potential for the LS to cause clinical esophageal constriction postoperatively, a recommendation for LS transection may be warranted. Vascular clips can also be considered as an alternative for vessel ligation to avoid complications associated with vessel\u2010sealing device use.<\/jats:p><\/jats:sec>","DOI":"10.1111\/vsu.12572","type":"journal-article","created":{"date-parts":[[2016,10,13]],"date-time":"2016-10-13T19:34:27Z","timestamp":1476387267000},"source":"Crossref","is-referenced-by-count":26,"title":["Thoracoscopy with Concurrent Esophagoscopy for Persistent Right Aortic Arch in 9 Dogs"],"prefix":"10.1111","volume":"45","author":[{"given":"Sarah","family":"Townsend","sequence":"first","affiliation":[{"name":"Department of Clinical Studies Ontario Veterinary College, University of Guelph Guelph Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Michelle L.","family":"Oblak","sequence":"additional","affiliation":[{"name":"Department of Clinical Studies Ontario Veterinary College, University of Guelph Guelph 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