Editorial on “vascular ring diagnosis and management: notable trends over 25 years”

Vascular rings occur due to some perturbation in the normal sequence of development and selective involution of paired aortic arches to form a definitive left or right aortic arch. The two most common types of vascular rings are double aortic arch (DAA) and right aortic arch with an aberrant left subclavian artery and a left patent ductus arteriosus or ligamentum arteriosum (RAA-ALS) (1,2). The prevalence of vascular rings is unknown because many patients remain asymptomatic and are undiagnosed.