When our stenotic valves are repaired or replaced with tissue valves the new valve is working properly, as opposed to the stenotic one, the leaflets will be closing properly and 'crisply'. When stenotic the valve doesn't close properly or easily as we know. The consequence of this new and better closing is that the 'noise' is diffferent and our brains pick up that difference. Takes time for the brain to get used to the new 'noise'. Apparently when babies are born it takes them about six months to get used to their bodies' internal noises ! So it's something like that with us - though our brains might not get used to the mech valves as they have a totally unatural sound. A tissue valve also does have a 'murmur' but that is fine and called a flow murmur which is "found in nature" as a doctor put it in an exam when I was a patient (I'm used as a patient in the cardiac section of a doctors' exam when the docs want to get more qualifications and move up to specialist level).cldlhd;n858891 said:I realize this isn't exactly the same as I had my valve repaired not replaced but right after surgery I heard it a lot more then before but now 7 months later it's pretty much as quiet as before.