[HSF] Failed perimount

Sat Feb 2 15:00:15 EST 2008

None  of the  various tissue valves I used  in my life had a  single mode  of failure or even a standard time table. For instance the Hancock 1 developed calcification in 25 % of the cases during  the first  ten years sometimes with tears along  the  margin of  a  calcific nodule  (mean age around 50+) and thereafter went on to develop thinning of the leaflets and tears in the leaflet belly or sometimes  the  commissures during  the second decade and  even reaching  the  third decade in rare cases.  The Ionescu had early abrasion wear tears in a high proportion of  cases but  if it  escaped  these went  on  to calcify in the  second  decade. I had  one which lasted 23 years. The Perimount  had rare tears in the  first ten years with  calcification developing  in the second decade. However tears were still possible. 
One  young  lady had a mechanical at  19 removed for thromboembolic problems, had a  first Hancock at  29 that lasted 14 years and then another  Hancock that lasted  8 years (Failures in each case  dominated by calcification).

Bob

-----Original Message-----
From: tdmartin2000 at aol.com
To: OpenHeart-L at lists.hsforum.com
Sent: Thu, 31 Jan 2008 11:01 pm
Subject: Re: [HSF] Failed perimount

Just before the STS I removed a perimount that I had implanted in 1993 - 15 YRS 
AGO!
?As you know I have been preaching that these valves almost all fail by 
calcification and stenosis. Well, this one failed from stress holes in the 
leaflets and AI with absolutely NO evidence of calcification anywhere on the 
valve. I will have to say however that it was his 5th valve and the porcine 
valve I took out in 93 had been in for almost 18 yrs.

Tom Martin
U of Florida
Gainesville

-----Original Message-----
From: Tea Acuff <tacuff at swbell.net>
To: OpenHeart-L <OpenHeart-L at lists.hsforum.com>
Sent: Thu, 31 Jan 2008 10:03 pm
Subject: [HSF] STS funny story

I don't remember who said this to me. Maybe the guilty party will fess up.

We had been at the STS for less than a day and visited with a few of us from 
HSF. (I'm sure others did the same else where). A few hours later a ran into 
someone again who reported that so and so had already got his notes out on the 
HSF. "He really had to get his ideas out. He's got it bad...."

Thinking later it reminded me of my second grade observation which I have shared 

before. "Johnny had his eyes open during the prayer".

tea
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