Surgical Correction for Left Aortic Arch with Aberrant Right Subclavian Artery in a Cat

Abstract

A three-month-old intact female cat was presented with a history of regurgitation. Contrast-enhanced computed tomography revealed a complete vascular ring due to aberrant origin of the right subclavian artery and conjunction of the right subclavian and common carotid arteries, which had caused esophageal stricture with severe dilatation, cranial to the heart base. At eight months old, the cat underwent surgical transection of the aberrant right subclavian artery via a right-sided intercostal thoracotomy. The cat recovered uneventfully and was discharged six days after surgery. Although regurgitation occurred due to trichobezoars requiring removal from the dilated esophagus under endoscopy two months post-surgery, the cat has remained asymptomatic through 12 months post-surgery.