RT Book, Section
A1 Lewis, Choy R.A.
A2 Freeman, Brian S.
A2 Berger, Jeffrey S.
SR Print(0)
ID 1102568712
T1 Cerebral Blood Flow: Autoregulation
T2 Anesthesiology Core Review: Part One Basic Exam
YR 2014
FD 2014
PB McGraw-Hill Education
PP New York, NY
SN 9780071821377
LK accessanesthesiology.mhmedical.com/content.aspx?aid=1102568712
RD 2023/05/27
AB Autoregulation  is  the  maintenance  of  constant  cerebral  blood  flow  (CBF)  over  a  range  of  cerebral  perfusion  pressure  (CPP).  Cerebral  perfusion  pressure  is  defined  as  mean  arterial  pressure  (MAP)−central  venous  pressure  (CVP)  or  intracranial  pressure  (ICP)  or  cerebral  venous  pressure  (cVP),  whichever  is  greatest.  Because  ICP,  CVP,  and  cVP  are  usually  less  than  10  mm  Hg  in  the  healthy  brain,  MAP  is  the  main  driving  force  for  CPP.  In  light  of  this,  autoregulation  is  often  depicted  as  maintenance  of  constant  CBF  over  range  of  MAP  usually  50-150  mm  Hg  (Figure  118-1).