[HSF] Possible infected Freestyle

[prasannasimha]

Not sure about ring sizes in large sizes as ring trimming is typically 
only done for size 19 by most companies.(It was actually started by 
Medtronic who started the 20 size valve which had a trimmed 19 ring)
Prasanna

Hgrmd at aol.com wrote:
> Sorry, Tom.  I'm not following your logic.  What makes you think  a 25 Mosaic 
> will fit as well as a 23 Magna?  Unless there are sizing  discrepancies 
> between the 2 companies valves (which I've seen), the smaller  valve should fit 
> more easily than the larger one.  Parenthetically, though  I'm sure you are 
> aware, the Magna is designed such that it's 19mm valve has the  same EOA as its 
> 21mm Perimount.  They do this by thinning out the stent and  sewing ring.  I've 
> been using them for about a year, and have been pleased  with their performance 
> so far.  In the larger annuli, it probably doesn't  make much difference.  
> However, for the smaller roots the hemodynamic data  I've seen (company 
> provided, of course) appear favorable.
>  
> Hal
>
>
>
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