Just throwing this out there. Is there any way that they could replace your mechanical aortic valve with a tissue valve and also replace your leaky mitral valve while they are in there. Not that you want another surgery, I've had 3 and don't want another if I can help it. But if you had tissue valves you could stop the anticoagulants which may help your bleeding problems. Again this is just a thought, my cardiologist told me about a patient that had a mechanical valve change to a tissue valve because of issues with her anticoagulants.
Good luck with your follow up.
Good luck with your follow up.