Patient selection: traumatic brain injury
Parameters for subarachnoid and intraventricular hemorrhage score:
(1) convexities
(2) basal cisterns
(3) intraventricular hemorrhage
|
Parameter
|
Finding
|
Points
|
|
convexity hemorrhage
|
no blood
|
0
|
|
|
blood visible in gyri
|
1
|
|
|
extensive bilateral with most convexities filled
|
2
|
|
basal cistern
|
no blood
|
0
|
|
|
blood visible
|
1
|
|
|
filled with blood
|
2
|
|
intraventricular hemorrhage
|
absent
|
0
|
|
|
present
|
2
|
SAH and IVH score =
= SUM(points for all of the parameters)
Parameters for tally score:
(1) midline shift in mm
(2) subarachnoid and intraventricular hemorrhage (SAH/IVH) score
(3) epidural hemorrhage
(4) diffuse axonal injury (DAI, visible lesions in brainstem, corpus callosum or basal ganglia)
(5) dual-sided subdural hematoma (SDH)
|
Parameter
|
Finding
|
Points
|
|
midline shift
|
|
(shift) / 10
|
|
SAH and IVH
|
|
(score) / 2
|
|
epidural hemorrhage
|
absent
|
0
|
|
|
present
|
-1
|
|
diffuse axonal injury
|
absent
|
0
|
|
|
present
|
1
|
|
dual-sided SDH
|
absent
|
0
|
|
|
present
|
1
|
tally score =
= SUM(points for all of the parameters) + 1
value of X =
= (1.1 * (tally score)) - 3.5
probability of unfavorable outcome =
= 1 / (1 + EXP((-1) * X))
