Hi, if your valve, and the dysfunction of the rest of the heart as a result, is the cause of the pulmonary hypertension then you may well find your pulmonary hypertension will improve. I am now more than 5 1/2 years post-op mitral valve replacement. My pulmonary pressures were hanging up around the 45-50 range, sometimes a bit lower but not much. I was having a time with chf as well. Last month my echo showed rvsp of only about 30 which I consider high normal. My chf is much improved and my blood pressure is nice and low. I was just so pleased with the report. I am on a lot of medications but the end result has been worth it. I am less short of breath, I have more energy and my ankles (actually just my left since I have an unrelated problem with the right) are much less swollen. So, if you don't see results right away it doesn't necessarily mean it won't improve over time. I don't know if mine will stay down but I'm enjoying a nice time of respite for my lungs.