Note this covers both tissue and mechanical valves as well as addressing warfarin (Coumadin) use.
Scratch At AOPA:
You may want to consider having the testing reviewed before providing the confirmation number for your application to an AME's office. If there are any concerns for denial, you can make an informed decision before you submit. A denial eliminates you from having the option to use a driver's license only to fly LSA.
I so totally do ONLY this approach. Why would one go before what amounts to a federal board of inquiry without already known that you "have it in the bag".