Dear Norbi,

I assume you are searching for experience in transapical aortic valve implantation due to severe stenosis of the aortic vlave, not the aorta itself?

You should contact Martin Arnold from Erlangen University Hospital, I think he´s got the answers (or the literature) you need!

Julian Strobel, thank you for the correction, i have done a mistake, Q about aortic valve stenosis and interested abou the Time in first of all (how much time is from the diagnose to the implantion or death is gone)

I recommend this excellent recent article. 

Thank you David Zizek