Heart valve, MUST it be replaced?

Here is what the doc said OFFICIALLY:

"The aortic valve itself is abnormal.  It appears to be a bicuspid appearing valve with assymetrical opening present.  Hemodynamically no aortic insufficniency is present but there is evidence of some mild stenosis with a valve are reduced at 1.5cm (squared).

The Mitral valve diostalic inflow is normal.  There is mild mitral regurgitation."

What he UN-officially said to my relative that works for him is that I should have a valve replacement sometime before I am 65.  That's in 14 years.

He's a younger guy so I am assuming he's up on most of the newer technologies.  He does NOT perfrom this surgery so he's not trying to gin up business.

 I don't like the long-term involvements with having tissue vavles replaced every 10 years or so OR taking cumadin for live.

Is there anything I can do to help this without surgery?   Exercise, diet, voodoo?