"After AVR do people become carefree again, without being haunted by this heart thing? Do people 'forget' (I don't mean this literally) they have heart problems and get on with life, like before the bad news?"
Yes they do get on with a full and happy life. For you personally, it depends upon your attitude towards life. I was never haunted by my "heart thing" although I lived with it for 20 years. I was carefree before with my BAV, but I am german/irish catholic stock and thus good at denial and faith
It was not until I was told surgery was needed did I begin to stress.
If you get a mechanical valve, you will be taking warfarin every day and testing every 2-4 weeks. This is my life. My doctor said although there is a slim risk of endocarditis and of a warfarin related bleed, the odds are pretty much for sure I will die of something other than my aortic valve disease. It's a fine life, but then extreme sports scare me and I belive they are for the insane
My INR moves around and I occasionally cut myself shaving, but no complaints. I don't forget to take my meds, but I sometimes forget to test, but my coumadin clinic reminds me. So, for me, forgetting to test is "literally" a sign of being care-free.
My biggest complaint is the cost of home testing, but then I have insurance, a good job and a FSA. I am cheap.
From my persepctive, the closest to carefree is an old person (>70) with a tissue valve...my m-i-l. However, since she has other problems, she was on warfarin before her valve job. Her biggest risk is endocarditis. I believe you will still need to premedicate before dental work and some procedures.
I don't know anyone with a tissue valve who is young. From what i've read, if you get a tissue valve and are young, you are re-setting the clock and will go through the whole thing over again. How you deal with this will be up to you but it will be "old hat". How do you deal with it now?
No matter what valve you get nor how successful the operation, you will always be classified as suffering from aortic valve disease. The good news is that it's not that bad and most people handle it with panache.