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Fri Sep 7 03:16:39 BST 2007

In a message dated 9/6/2007 9:01:22 P.M. Central Daylight Time, ih7 at msn.com  
writes:

You can  measure and estimate cardiac output from echo very well indeed. You 
didn't  know that

Of COURSE, I know that and have know that such claims have been made for  
DECADES.  AND I FIND THEM TO BE INCREADIBLY INACCURATE compared to other  methods 
of determining ejection fraction, cardiac output, etc. etc. etc.  etc.      
You forget that first I am a cardiac surgeon,  with probably more cardiac 
surgery under my belt than trauma  surgery.    I have interacted with cardiologist, 
invasive and non  invastive since 1965 and have watched and learned from the  
anesthesiologists.     I tried and tried to find a use for  the TEE and TTE 
in trauma.   We really did.    I find  that some cardiologist are very good 
with echo, but most over read tremendously  and when they do a real cardiac 
output compared to TEE cardiac output that is  where the randomization of the 
random number generators really happens.  

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