Middle Aortic Syndrome (MAS)

Middle aortic (“mid-aortic”) syndrome (MAS) refers to a segmental narrowing of the distal thoracic or abdominal aorta, often with associated stenosis of the renal and visceral branches. The result is severe renovascular hypertension in children and young adults who otherwise have “healthy” hearts and no atherosclerotic risk profile. Etiologies range from isolated congenital aortic hypoplasia […]