I had my valve replaced 7 years ago. At the time I only had sarcoidosis. It didn’t cause any problems. Well, unless it was the catalyst for my current situation! I now have Sjogrens, ANCA Vasculitis and RA in addition to the sarcoidosis! I had about 8 months before surgery to get myself in the best shape I could be considering the state of my valve! I did a wellness program and sailed through the whole thing with only a small problem with critically low platelets. Try not to worry about the surgery it won’t help. Trust God and your doctors and you will be fine!