The First Two Cases of Long-Term Outcomes After Transcatheter Aortic Valve Replacement in Patients With Quadricuspid Aortic Valve.

We report the first 2 cases of long-term outcome after transcatheter aortic valve replacement (TAVR) in quadcuspid aortic valve. Neither structural valve deterioration nor major adverse cardiovascular events occurred in these 2 patients, suggesting satisfactory long-term outcome. One of the presented patients is also the first reported case of TAVR in a type E quadcuspid aortic valve.