[HSF] ATS valve

[prasannasimha]

We implanted our units first ATS valve last week.(The so called advanced 
performance valve) Seemed OK and patient had low gradients etc (AVR) Can 
members who ave implanted it tell me about their experiences especially 
the good the bad and the ugly (More interested in the last two).
One thing I noted when we were implanting the valve was that we had 
sized it to a 24 AP (actually 26 sizer went in but 24 was the largest 
size supplied) and it did take a bit of effort to get it in (though once 
in it fit well). I was a bit worried at that time that it may have been 
"oversized" wrt to the sizer.
Is there any 'preferred " position in literature wrt bilealfet valves in 
the aortic position. (I am aware of the position wrt monoleaflet valves 
but could not really get any data for bileaflet valves).
Prasanna