Description

The Glasgow-Liege Scores combines the status of the brain stem reflexes and the Glasgow Coma Scale. From this score it is possible to estimate the probability of a comatose patient's outcome.


Brain Stem Reflex

Finding

Score

fronto-orbicular reflex

on one side

5

vertical oculocephalic reflex

in one eye

4

papillary light reflex

in one eye

3

horizontal oculocephalic reflex

in one eye

2

oculocardiac reflex

present

1

oculocardiac reflex

absent

0

 

Glasgow-Liege Scale =

= (Glasgow Coma Scale) + (Brain Stem Reflex Score)

 

where:

• maximum score = maximum GCS + maximum BSRS = 15 + 5 = 30

• minimum score = minimum GCS + minimum BSRS = 3 + 0 = 3

 

probability of a good recovery or moderate disability =

= (1 / (1 + (e ^ (S1)) + (e ^ (S2))))

 

probability of severe disability or vegetative state =

= (e ^ (S2)) * (1 / (1 + (e ^ (S1)) + (e ^ (S2))))

 

probability of death =

= (e ^ (S1)) * (1 / (1 + (e ^ (S1)) + (e ^ (S2))))

 

where:

• S1 = 10.00 - (1.63 * (Glasgow-Liege Scale)) + (0.16 * (age in years))

• S2 = 6.30 - (1.00 * (Glasgow-Liege Scale)) + (0.08 * (age in years))

 


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