Increased filling Pressure

Hi,
I had a RHC done and it showed increased filling pressure on the right side of my heart. I never had any heart problems till after I had a PE in Jan.2000. My question is can a PE cause this problem. My cardiologist has put me on Monopril and lasix, will I have to stay on this the rest of my life?
I'm still on coumadin and they are thinking about trying to take me off it in Jan. 2001. Will taking me off the coumadin put more pressure on my heart? They say the can't guarentee me that I won't get another DVT leading to a PE but it's more dangerous to stay on coumadin than getting another PE...Is this true?
I still have chest pain and shortness of breath does this usually go away? I had all testing done and i don't have any clotting disorders.and they say my left side of my heart is fine so far. Can the right sided problem cause damage to the left side? I have knee problems in my right leg and this is where the DVT came from. They want to do another knee surgery but i'm afraid.
With having elevated filling pressure will being put to sleep put strain on my heart? And am i at a higher risk for getting another PE? thanks for any information

[CCF CARDIO MD - DLB]

The PE is probably what has caused the elevated pressures on the right side of the heart. Depending on how elevated, this could put you at higher risk for surgery. Sometimes the pressures return to normal after the PE dissolves with the coumadin, though sometimes the damage is permanent and you need medications indefinitely. The major risk of coumadin is bleeding and this risk needs to be weighed against the risk of another, potentially fatal PE - this of course depends on the specific risks of the individual patient and it really is not possible to generalize.