Percutaneous Aortic Stent Implantation in an Adult Patient with Interrupted Aortic Arch

30 Interrupted aortic arch (IAA), an uncommon malformation of the aortic arch, is defined as a loss of luminal continuity among the ascending and descending portions of the aorta. The incidence of IAA among congenital heart defects is around 1%.1 There are 3 types of the IAA, and they are classified according to the site of the interruption by Celoria and Patton.2 Type A is interrupted distal to the left subclavian artery (LSCA); Type B is interrupted between the left subclavian and left carotid artery (LCA), and Type C is interrupted proximal to the LCA. The frequency of occurrence is listed as B, A, and C, respectively. Survival into adulthood with the isolated anomaly is very rare and depends on the development of collateral circulation. Extra anatomic bypass procedures are the most preferred reconstruction method in adult patients with IAAs.3