Hey, sorry, I've been busy at work and off the board for a while.
I had my tricuspid repaired 8/10/10 along with the replacement of my aortic valve. The tricuspid repair was required because I have a pacemaker/defibrillator, and all the wires run throught the tricuspid. They made the valve sort of saggy, so the surgeon repaired it/gave me an annuloplasty ring for support.
That leaky valve was giving me problems with CHF/fluid retention, coughing, etc. more so than the aortic leakage, which just made me tired and somewhat dizzy.
It is my understanding that because of the lower blood pressure and reduced flow in the tricuspid valve, a tissue replacement is preferred to a mechanical. With a mechanical in that position you INR would have to be much higher than is considered advisable in most cases. I don't know how high.
But the good news is that tissues last longer in that position, too.
There is no reason to believe a replacement won't go well for you. My heart is held together with spit and bailing wire, and run on a battery. So if I can be doing as wonderfully now as I am, after 3 valve jobs in 2 surgeries, there's no reason to believe you can't do extremely well afterwards, either, unless your doctor specifically tells you otherwise.
You might ask about people who've had Ross procedures done. In that procedure, they put a tissue valve in either the tricuspid or pulmonary position (I forget which, my ignorance), and move the native valve to the Aortic position to replace a bad aortic valve. If that's been done so many times, you should do just fine by replacing just the one valve. Faith, and a little Xanax, will help.