Mtntop1:
Do you have copies of all echoes since 1987? Those would be extremely helpful, to compare ejection fraction, any change in size of the heart, particularly left atrium.
Cardiologists frequently take a wait-and-see approach; surgeons prefer to get in BEFORE the failing valve causes permanent enlargement or other damage to the heart.
Since you already have shortness of breath, might be a good idea to fast-forward your schedule for surgery & find a surgeon NOW for a consultation. It doesn't take long for a valve to deteriorate. I learned that 3 years ago.