Developmental defects of the aortic arch and the right subclavian artery.

The study included 10 patients with anomalous development of the aortic arch, of whom 5 had a double aortic arch, 5 had anomalous branching of the right subclavian artery with the formation of a vascular ring. 5 patients were operated with good long-term results during a 15-year follow-up period.