Term
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Definition
FALLS! 28%
* recent change from MVA to falls |
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Term
| What is etiology of TBI in kids? |
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Definition
leading cause of death in kids > 1 year of age
10 in every 10,000 children die each year 2ndary to head injuries |
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Term
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Definition
confusions/lacerations
DAI
Diffuse vascular injury / multiple petchial hemorrhages
Cranial Nerve Injury |
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Term
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Definition
| bruising of cortical tissue. May produce focal, cog., & sensory-motor deficits. Not directly responsible for loss of consciousness following trauma. May occur from relatively low velocity impact. |
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Term
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Definition
| Diffuse Axonal Injury: causes loss of consciousness. Damage most often in corpus callosum and other midline structures. Results from acceleration-deceleration and rotational forces associated w/ high velocity impact (MVA). |
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Term
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Definition
Intracranial Hemorrhage
Brain Swelling
Ischemic Damage
Hypoxia
Intracranial Infection
Hydrocephalus
Increase ax in brain
Free radicals molecules |
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Term
| If brain is penetrated at lower levels of brain stem... |
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Definition
| death is instantaneous from respiratory and cardiac arrest, 80% with through and through injuries die at once. |
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Term
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Definition
NEURONAL GENERATION/SPROUTING: intact axons establish synaptic connections through dendritic and axonal sprouting in damaged areas. Occurs wks to months post-injury.
FUNCTIONAL REORGANIZATION/UNMASKING: healthy neuronal structures not formally used for a given purpose are developed or reassigned to do functions formerly subserved by lesioned areas. |
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Term
| _______ explains spontaneous return of function |
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Definition
| DIASCHISIS: function is initially lost in intact tissue. |
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Term
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Definition
| recovery of function based on ax of uninjured brain areas (latent) that would normally contribute to that function. |
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Term
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Definition
| taken over by brain areas not originally managing that function. These areas alter their properties in order to subserve that function. |
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Term
| Consciousness is a function of |
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Definition
Reticular activating system - (composed of cell bodies in upper brain stem and their projections).
Cerebral cortex |
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Term
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Definition
Pt cannot be aroused
Essentially universal in TBI
Eyes continuously closed
No sleep wake cycles on EEG
No spontaneous purposeful mvmvt
No evidence of language comprehension or expression |
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Term
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Definition
Loss of capacity to interact w/ environment despite potential for arousal
Pt eyes open
Sleep-wake cycles on EEG
No purposeful behavior
No intelligible verbal or gestural communication |
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Term
| Signal of transition of vegetative state |
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Definition
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