Welcome! And also sorry to hear that you are needing surgery. I also had a BAV and had it replaced at 31. I chose tissue at that point because I wanted to avoid blood thinners, but that valve only lasted 8 years and I had it replaced 5 weeks ago at age 39 (turned 40 two weeks after surgery). I went with mechanical this time as I now see the wisdom of avoiding unnecessary additional surgeries, and I didn’t want a 3rd operation before I turned 50. So far warfarin hasn’t been bad but I’m still early in the game. I can see that there is a learning curve with it but it doesn’t seem overly difficult. The first couple of weeks after surgery are rough, but honestly I feel great 5 weeks out and I’m heading back to work next week. I’m even sipping a beer at the moment (following cardiologist’s permission of course). My only advice would be to not delay surgery if it is needed, as others have said. The longer you delay the more you’re playing with fire. Best of luck with your decision and surgery!