Poultsides George A, Lolis Evangelos D, Vasquez Jay, Drezner A David, Venieratos Dionisios
Department of Anatomy, University of Athens School of Medicine, Athens, Greece.
Ann Vasc Surg. 2004 Sep;18(5):597-600. doi: 10.1007/s10016-004-0060-3. Epub 2004 Aug 12.
An aberrant right subclavian artery (aSA) arising from the proximal descending aorta is one of the most common anomalies of the aortic arch. We present our experience with an asymptomatic atypical aSA variant found during routine anatomic dissection. This aortic arch variant had two branches, the first being a bicarotid trunk and the second being a common trunk for both subclavian arteries. The right subclavian artery traveled behind the esophagus to reach the right upper extremity, thus forming an incomplete vascular ring around the trachea and the esophagus. The literature has been silent about the existence of this exact aSA variation. A plausible embryologic explanation is provided. An aSA is rarely symptomatic, but when symptoms do occur and intervention is warranted, it is important for surgeons and radiologists alike to be aware of the vascular anomalies that may potentially coexist with this entity. The surgical and endovascular options associated with this unique vascular anomaly are also discussed.
起源于降主动脉近端的迷走右锁骨下动脉（aSA）是主动脉弓最常见的异常之一。我们介绍了在常规解剖 dissection 中发现的无症状非典型 aSA 变异的经验。这种主动脉弓变异有两个分支，第一个是双颈动脉干，第二个是双侧锁骨下动脉的共同干。右锁骨下动脉在食管后方走行以到达右上肢，从而在气管和食管周围形成一个不完全的血管环。关于这种确切的 aSA 变异的存在，文献中尚无记载。我们提供了一个合理的胚胎学解释。aSA 很少有症状，但当出现症状且需要干预时，外科医生和放射科医生都必须意识到可能与此实体潜在共存的血管异常。本文还讨论了与这种独特血管异常相关的手术和血管内治疗选择。
