The effect of the learning curve on paravalvular aortic regurgitation and mid-term mortality in transfemoral transcatheter aortic valve implantation.

In a group of patients with severe aortic stenosis who underwent transfemoral TAVI in the first 3 years since the establishment of the program, paravalvular aortic regurgitation ≥grade II was associated with mid-term mortality, both declining after the first 60 cases.