[HSF] ATS valve

[Tea Acuff]

Actually I believe the original St Jude valve was and still is easy to turn, but as they reduced the thickness of the cylinder through the new iterations this feature became more theoretical than actual. Most of us in the US probably use one of the newer designs. I can't keep up with the names but I like the next to last version best as there is a little more give in the sewing ring, housing complex that gives me a little more room for error in implantation. I am willing to trade a tiny gain in EOA for a little ESA (effective surgical area) not personally being an automaton nor the patient symmetrical. For discussion I think there have been too many trade offs for the theory (now dogma) of patient prosthesis mismatch (PPM). That is, I have not seen that relief of PPM has restored patient survival to normal. I am not, however suggesting that 19 size is good for everyone, but just that the theory has not delivered the hype and we have traded for other problems.
Maybe Bob would like to either support or kill my impression if he can make sense of it.
tea


----- Original Message ----
From: "Hgrmd at aol.com" <Hgrmd at aol.com>
To: OpenHeart-L at lists.hsforum.com
Sent: Tuesday, June 19, 2007 5:41:37 PM
Subject: Re: [HSF] ATS valve


Nasser,
  For me, the ATS rotates more easily than the St Jude.
Hal



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