RT Book, Section
A1 Monahan, Christopher
A2 Freeman, Brian S.
A2 Berger, Jeffrey S.
SR Print(0)
ID 1135738857
T1 Intracranial Pressure
T2 Anesthesiology Core Review: Part Two Advanced Exam
YR 2016
FD 2016
PB McGraw-Hill Education
PP New York, NY
SN 9781259641770
LK accessanesthesiology.mhmedical.com/content.aspx?aid=1135738857
RD 2024/04/18
AB Intracranial  volume  largely  determines  intracranial  pressure  (ICP),  since  the  skull  fixes  the  volume.  The  three  intracranial  components  are  brain,  cerebrospinal  fluid  (CSF),  and  blood.  The  brain  itself,  composed  of  cellular  components  and  water,  comprises  roughly  90%  of  intracranial  volume  and  may  expand  from  tumor  growth  or  edema.  CSF  accounts  for  roughly  5%  of  intracranial  volume  and  may  expand  with  hydrocephalus.  Lastly,  blood  accounts  for  approximately  5%  of  intracranial  volume.  Expansion  of  the  blood  compartment  occurs  with  cerebral  hemorrhage  or  increased  cerebral  blood  flow  (CBF)  as  a  result  of  cerebral  vasodilation.