August 22, 2019 is the day I had a stenosed aortic valve replaced. The procedure used was a TAVI, or transcatheter aortic valve implant. Think of the implant as a stent with a pig valve in the middle of it. It’s introduced through the femoral artery and threaded up to the location of the bad valve. Once there, it’s expanded in place, crushing the calcified valve out of the way. The pig valve takes over immediately, and the hardware used to place it is withdrawn.