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Mon, 7 Jan 2002 08:36:51 -0500

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Clive,

Hyperventilation decreases intracranial volume (and thus, to some degree,
pressure) by decreasing cerebral blood flow.  As one might expect, it's not
typically a fair trade.

Hyperventilation should only be used to achieve eucapnea (PaCO2 35-45).  As
such, it should only be undertaken in settings where it can be controlled
and monitored.

Who's still telling you to do it, and under what circumstances?

Pret Bjorn
Trauma Coordinator
EMMC Trauma Program
489 State Street
Bangor, ME 04401

207.973.7260 (office)
207.973.7673 (fax)
207.941.5085 (voice pager)

-----Original Message-----
From: Clive Leach [mailto:clivedleach@hotmail.com]
Sent: Monday, January 07, 2002 6:40 AM
To: trauma-list@trauma.org
Subject: Head injury

Can someone please tell me why hyperventilating head injury is "out" .
We are still told to do it.. 
Many thanks and Happy New Year,  Clive

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<DIV><FONT color=#800000 face=Arial size=2><SPAN 
class=010592313-07012002>Clive,</SPAN></FONT></DIV>
<DIV><FONT color=#800000 face=Arial size=2><SPAN 
class=010592313-07012002></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT color=#800000 face=Arial size=2><SPAN 
class=010592313-07012002>Hyperventilation decreases intracranial volume (and 
thus, to some degree, pressure) by decreasing cerebral blood flow.&nbsp; As one 
might expect, it's not typically a fair trade.</SPAN></FONT></DIV>
<DIV><FONT color=#800000 face=Arial size=2><SPAN 
class=010592313-07012002></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT color=#800000 face=Arial size=2><SPAN 
class=010592313-07012002>Hyperventilation should only be used to achieve 
eucapnea (PaCO2 35-45).&nbsp; As such, it should only be undertaken in settings 
where it can be controlled and monitored.</SPAN></FONT></DIV>
<DIV><FONT color=#800000 face=Arial size=2><SPAN 
class=010592313-07012002></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT color=#800000 face=Arial size=2><SPAN class=010592313-07012002>Who's 
still telling you to do it, and under what circumstances?</SPAN></FONT></DIV>
<DIV><FONT color=#800000 face=Arial size=2><SPAN 
class=010592313-07012002></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT color=#800000 face=Arial size=2><SPAN class=010592313-07012002>
<DIV><FONT color=#800000 face=Arial size=2>
<DIV><FONT color=#800000 face=Arial size=2><SPAN class=030133519-19052000>Pret 
Bjorn</SPAN></FONT></DIV>
<DIV><FONT color=#800000 face=Arial size=2><SPAN class=030133519-19052000>Trauma 
Coordinator</SPAN></FONT></DIV>
<DIV><FONT color=#800000 face=Arial size=2><SPAN class=030133519-19052000>EMMC 
Trauma Program</SPAN></FONT></DIV>
<DIV><FONT color=#800000 face=Arial size=2><SPAN class=030133519-19052000>489 
State Street</SPAN></FONT></DIV>
<DIV><FONT color=#800000 face=Arial size=2><SPAN 
class=030133519-19052000>Bangor, ME 04401</SPAN></FONT></DIV>
<DIV><FONT color=#800000 face=Arial size=2><SPAN 
class=030133519-19052000></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT color=#800000 face=Arial size=2><SPAN 
class=030133519-19052000>207.973.7260 (office)</SPAN></FONT></DIV>
<DIV><FONT color=#800000 face=Arial size=2><SPAN 
class=030133519-19052000>207.973.7673 (fax)</SPAN></FONT></DIV>
<DIV><FONT color=#800000 face=Arial size=2><SPAN 
class=030133519-19052000>207.941.5085 (voice 
pager)</SPAN></FONT></DIV></FONT></DIV></SPAN></FONT></DIV>
<BLOCKQUOTE style="MARGIN-RIGHT: 0px">
  <DIV align=left class=OutlookMessageHeader dir=ltr><FONT face=Tahoma 
  size=2>-----Original Message-----<BR><B>From:</B> Clive Leach 
  [mailto:clivedleach@hotmail.com]<BR><B>Sent:</B> Monday, January 07, 2002 6:40 
  AM<BR><B>To:</B> trauma-list@trauma.org<BR><B>Subject:</B> Head 
  injury<BR><BR></DIV></FONT>
  <DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
  <DIV><FONT face=Arial size=2>Can someone please tell me why hyperventilating 
  head injury is "out" .</FONT></DIV>
  <DIV><FONT face=Arial size=2>We are still told to do it.. </FONT></DIV>
  <DIV><FONT face=Arial size=2>Many thanks and Happy New Year,&nbsp; 
  Clive</FONT></DIV></BLOCKQUOTE></BODY></HTML>

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