Just left with meeting with the surgeon. My dad will be having surgery on July 14th. The surgeon seems to think back in 2012 my dads INR went out of range and maybe that's when this happened because my dad started to not breath as well. He thinks maybe a clot or something is clogging the leaflet. He said that he can go in there and just have to clean the valve or worse case scenario replace the valve with a mechanical valve. He seems very confident this will all be ok. He made us feel comfortable too. Of course he mentioned that 3% of it not going well. It almost sounds like exploratory. But in any case he will fix the problem. We are all in good spirits but I'm still scared. This is a 2nd open heart surgery. I need support from others that have been through it it!!!