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Flashcards in Cog General Info Deck (24):
1

Acceleration/Deceleration Injiry

-car hits something
-you hit soemthing in car (coup)
-brain hits the skull (contrecoup) ??`

2

most vulnerable areas to brain injury

-orbitofrontal
-anterior temporal horns
-brainstem

3

Rational Injury (DAI)

-diffuse axonal injury
-shearing forces
-doesnt show up on MRI so pts are deemed "fine"
-theres metabolic damage to the neurons which causes cog difficulties

4

anoxia

-lack of oxygen to the brain
-can occur if ICP>BP

5

Immediate TBI consequences

laceration, contusion, DAI, coma, hypoxia, subdural/subarachnoid hemorrhage, CN damage

6

cerebral contusion to orbitofrontal

lots of movement

7

cerebral contusion to dorsolateral

pseudo-depressed syndrome, lack of niiation and motivation

8

cerebral contusion to anterior temporal lobe

-attentional and memory problems
-disorganized thoughts, confusional states

9

cerebral ocntusion to base of forebrain

(thalamus/hypothalamus damage)
-attention, memory, emotional control problems

10

specific lobe injiry

-deficits relating to lobe

11

DAI

severity of coma relates to degree of DAI

12

immediate consequences of corpus collosum damage

-distractibility, decreased attention

13

immediate consequences of midbrain damage

-sucebtible to coma

14

immediate consequences of cerebellar damage

-ataxia

15

Intermidiate consequences

-deemed the "gray" hours/days/weeks after TBI
-subdural hematoma, herniation of brain matter, cerebral edema, hydrocephalus, siezure

16

subdural hematoma intermediate conequences

-may be a gradual leaking of blood
-results in anoxia if ICP>BP

17

intermediate cons: herniation

-herniation of brain matter through tentorium
-affects the brainstem
-could turn into PCA stroke

18

intermediate conseq: cerebral edema

-brain tissue sweeling, could cause necrosis

19

intermed conseq: hydrocephalus

-CSF trapped in ventricles
-causes high ICP, could also cause necrosis

20

Late consequences of TBI (months/years lateR)

-chronic subdural hematoma
-hydrocephalus
-depression

21

late conseq: chronic subdural hematoma

-recurring head ache
-subtle hemiparesis
-regression in function
-variation in arousal
-may need a shunt

22

late cons: hydrocephalus

-shunt obstruction could cause changes in function, gate, behavior, or dementia

23

drepression (late conseq)

-organic: changes in chemical balance
-reactive: response to all the things that have happened

24

Prognostic indicators frolllwing TBI

-duration of coma
-duration of ICP
-areas of brain contusion
-location of lobe (frontal lobe=poorer outcome)
-time until med attention received
-length of time PTA (PTA over a day is not good)
-intelligence and drug use pre-injury
-family involvement
-financial resources