Saunders Ashley B, Winter Randolph L, Griffin Jay F, Thieman Mankin Kelley M, Miller Matthew W
Department of Small Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA.
J Vet Cardiol. 2013 Jun;15(2):153-9. doi: 10.1016/j.jvc.2013.02.004. Epub 2013 May 14.
An increase in the availability of advanced imaging modalities has led to improved recognition of cardiovascular anomalies. Computed tomography angiography (CTA) provides a non-invasive means of acquiring 3D images with a relatively short acquisition time thereby providing essential information in regards to patient anatomy and procedure planning. The dog in this report had a right aortic arch and abnormal branching with an aberrant left subclavian artery originating from the ampulla of a left patent ductus arteriosus (PDA) that was detected with CTA. The PDA was creating a volume overload to the left side of the heart as well as contributing to the vascular ring and compression of the esophagus. Therefore, ligation and transection instead of a minimally invasive catheter-based procedure was required. This aortic arch anomaly and surgical management have not been previously reported in dogs.
先进成像方式可用性的提高使得对心血管异常的识别得到改善。计算机断层血管造影（CTA）提供了一种非侵入性方法，能够在相对较短的采集时间内获取三维图像，从而为患者解剖结构和手术规划提供重要信息。本报告中的犬只存在右主动脉弓及异常分支，左锁骨下动脉异常起源于左动脉导管未闭（PDA）的壶腹部，这一情况通过CTA得以检测。PDA导致心脏左侧容量负荷过重，并促成血管环形成及食管受压。因此，需要进行结扎和横断，而非基于导管的微创操作。此前尚未有犬只出现这种主动脉弓异常及手术治疗的报道。
