RT Book, Section
A1 Ho, Alan W.
A1 Weller, Mark
A2 Atchabahian, Arthur
A2 Gupta, Ruchir
SR Print(0)
ID 57261922
T1 Chapter 98. ICP Monitoring, Acute ICP Increase
T2 The Anesthesia Guide
YR 2013
FD 2013
PB The McGraw-Hill Companies
PP New York, NY
SN 978-0-07-176049-2
LK accessanesthesiology.mhmedical.com/content.aspx?aid=57261922
RD 2024/04/23
AB Intracranial  pressure  (ICP)  =  pressure  exerted  by  the  contents  of  the  skull  on  the  dura  materNormal  ICP  varies  with  age,  body  position,  and  clinical  condition.  Normal  ICP  is  5–15  mm  Hg  in  a  supine  adult,  3–7  mm  Hg  in  children,  and  1.5–6  mm  Hg  in  term  infantsSkull  content  includes  brain  tissue  (compressible,  ˜83%  by  volume),  blood  (incompressible,  ˜6%  by  volume),  and  CSF  (incompressible,  ˜11%  by  volume).  In  the  event  of  increased  ICP,  compensation  can  occur  by  shifting  either  CSF  or  blood  out  of  the  intracranial  compartmentIntracranial  hypertension  over  a  critical  threshold  of  20  mm  Hg  is  an  independent  predictor  of  poor  neurological  outcome  after  severe  head  injury