Dear Lorraine;
I can't quote you the statistics or details, but I have read the summaries of two studies for this valve (CE Perimount Bovine), which show that the valve is still functioning well after 17 years (an earlier study) and 20 years ( a later study). The higher the age of the patient, the longer the valve seems to last. These studies have been referenced on this site, but I am sorry, I can't tell you exactly where to find them. Apparently a Dr. Cosgrove in Cleveland ( very well respected heart center) is a strong advocate of this valve as well. I have read nothing negative about the valve, except of course, as a tissue valve, it will not last as long as a mechanical. Also, if a second surgery is required, this valve is one which does not cause undo complications to replace it.
This valve was also the first one my surgeon ( Dr. Donald Glower- Duke Medical Center, Durham NC) mentioned when I asked him for a recommendation for a tissue valve. He did say that one's aortic root cannot be "small" with this valve, because it is a stented valve, which makes the valve opening a little smaller than a non-stented valve. I will know more about this in my case after tomorrow (10/21/03) when I undergo my Heart Cath.
My surgeon does do "port access" / minimal invasive surgery. Again, I don't know the specific criteria for patient suitabilty, as this is a topic my surgeon and I will discuss in more detail after my heart cath. He did say however, that it takes about 1 hour longer than the "normal surgery", and is a little more complicated of a procedure.
I still must discuss this with him of course, but my own feeling as of now ,is I would rather have the regular procedure. The reasons are, I want to spend as little time as possible on the heart-lung machine, and I don't want to make the surgery any more complicated for my surgeon than it has to be. This sentiment was also voiced by another doctor I asked. If there is any sort of problem, he said he would want the surgeon to have full and immediate access to my chest.
Good luck
Bob Bates