Recommendations for Aberrant Subclavian Artery, Kommerell’s Diverticulum

COR	LOE	Recommendations
2a	C-LD	1. In patients discovered to have an ASCA in the absence of thoracic aortic imaging, dedicated imaging to assess for TAA is reasonable.1,2
2b	C-LD	2. In patients with Kommerell’s diverticulum, depending on patient anatomy and comorbidities, repair may be reasonable when the diverticulum orifice is >3.0 cm, the combined diameter of the diverticulum and adjacent descending aorta is >5.0 cm, or both (Figure 27).3