Percutaneous treatment of aberrant right subclavian artery aneurysm with use of the Amplatzer septal occluder.

Aberrant right subclavian artery (ARSA) aneurysms are rare but carry a high risk of rupture and require early elective treatment. The present report describes a 60-year-old man with an asymptomatic ARSA aneurysm for whom surgical treatment would have been associated with a high degree of risk. The ARSA aneurysm was occluded with use of Amplatzer septal occluders, which avoided high-risk surgery and preserved antegrade flow into the left common carotid, subclavian, and vertebral arteries and perfusion of the right upper extremity through an induced right subclavian steal. The eventual need for bypass surgery for perfusion of the right upper extremity was assessed after the procedure.