Jason I had a tissue valve replacement 4 1/2 years prior and had testing and cardio appointments once and twice a year(twice a year first two years and once a year after) I had all the tests and appointments February 2016, shortness of breath gave me the "heads up" in May, tests ran in June showed the stenosis. Go figure? By surgery time November they said I even had a loose suture from first surgery. Bad cardio? bad testing? quick stenosis? too small of valve put in the first place? These were some of the things I heard.
THIS I know to be true. WE are our own best advocates and need to speak up when necessary. ASK questions and keep asking until you fully understand in your mind what they are telling you. Once you find the cardiologist that makes you comfortable, do as they say and work together to get your heart taken care of.
Some of the questions you have cannot be answered in a firm yes or no. What we all share with you is from our journeys of how it went for us but we are not all the same.
Good luck to you and you are on the right path.