The surgery should be in 2 to 3 weeks. The surgeon predicts calcification on my 24 year old St. Judes mechanical mitral valve. Does anyone have similar stories of old mechanical valves becoming calcified? Someone on here said they have never heard of calcification on a St. Judes mechanical. I haven't found any studies of cases such as that either. Any insight is welcome. I'm leaning towards just doing the surgery, no matter what is obstructing the valve, since I just want to feel better ASAP. They also plan to do the MAZE procedure which will be great for me. I have daily irregular beats, and would love if they were fixed. My last cardioversion was last year. Thanks all.