As Ross mentioned, Seth has a thread going on for the same subject:
http://www.valvereplacement.com/foru...ad.php?t=29590
I have myself a 200W subwoofer sound as well physical sensation with every heartbeat. I sense it even in environments like on airplanes. I have learnt to live with it, but sometimes it makes it hard to sleep. It also makes me more cautious while training etc.
I am 14 months post-op from an emergency OHS where I got an aortic graft with a valve-sparing procedure, reconstructing my bi-cuspid valve at the same time. My BP is a bit high even with medication, around 145/75 due to a remaining contraction that they will try to fix with a stent in a month.
The sound is quite dependent on the BP, and beta-blockers can bring it down somewhat (more for others as it seems).
Since I only have a reconstructed AV, I wonder about how it may be linked to a mechanical valve or not. In my case, I had medium leakage before surgery but were in quite good shape anyhow. Now when the valve is tight, the heart may be a bit over-powered, or act in a way that's not in line with the new valve characteristics. I generally think the water hammer theory is the one that gets closest to what I experience.
So far, no one has presented any possible cure to it, except partly then to control the blood pressure.
Some say it is quite uncommon, but only on this site we are closer to a dozen now.
Most important to start with is to learn how to deal with it psychologically. Easier said than done, I know...
Good luck!
::g