Incidence, Causes, and Outcomes Associated With Urgent Implantation of a Supplementary Valve During Transcatheter Aortic Valve Replacement

Transcatheter aortic valve replacement (TAVR) failure is often managed by an urgent implantation of a supplementary valve during the procedure (2-valve TAVR [2V-TAVR]). Little is known about the factors associated with or sequelae of 2V-TAVR.To examine the incidence, causes, and outcomes of 2V-TAVR.A retrospective cohort study was performed using data from an international registry of 21 298 TAVR procedures performed from January 1, 2014,...