Table 2.

Indications for alternative management of the left subclavian artery in both groups

Indications	n (%)
	n = 109
Covered group
Dominant right vertebral artery (including 5 emergency procedures)	38 (34.9)
Bilateral vertebral artery equipotential (including 4 emergency procedures)	11 (10.1)
Preoperative thrombosis of the left subclavian artery	3 (2.7)
Revascularized group
Dominant left vertebral artery (including 2 emergency procedures)	41 (37.6)
Occluded right vertebral artery	3 (2.7)
Planned long-segment coverage of the descending thoracic aorta	5 (4.7)
A functioning arteriovenous shunt in the left arm	3 (2.7)
Patent left internal mammary artery to coronary artery bypass graft	2 (1.9)
Bilateral internal carotid artery stenosis	3 (2.7)