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Concussion Grading, Loss of Consciousness - LOC

Smirniotopoulos, M.D. JGSM - MedPix (2005)

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Affiliation: Uniformed Services University

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There are several grading systems for concussion and more severe TBI... While them may guide therapy, they also have significant limitations... » WIKI - http://en.wikipedia.org/wiki/Concussion » Grade 3 - ANY Loss of Consciousness ------------------------------------------------ » Grade 1 - Confusion, No LOC, No Amnesia » Grade 3 - Loss of Consciousness ------------------------------------------------ » Grade 3 - LOC > 5 min OR Amnesia > 24 hr ------------------------------------------------ » Grade 6 - Death ------------------------------------------------ eMedicine - http://www.emedicine.com/pmr/TOPIC212.HTM http://www.exra.org/Concussion%20risk-2003.htm http://www.ajnr.org/cgi/content/full/23/9/1442

No MeSH data available.


Diagram of head impact.  The brain may move within the skull, causing torque (twisting) of the brainstem that may lead to symptoms - including loss of consciousness.  Dysfunction may result from disruption of the ascending reticular activating system (ARAS) in the posterior brainstem.  The disruption may be transient from an electrical discharge, transient ischemia, or from a brainstem hemorrhage - that might produce long-term/chronic dysfunction.  The relatively large volume and mass of the human cerebral hemispheres - supported by the much smaller brainstem - makes this injury (LOC) more difficult to model in animals.
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MPX2784_synpic46359: Diagram of head impact. The brain may move within the skull, causing torque (twisting) of the brainstem that may lead to symptoms - including loss of consciousness. Dysfunction may result from disruption of the ascending reticular activating system (ARAS) in the posterior brainstem. The disruption may be transient from an electrical discharge, transient ischemia, or from a brainstem hemorrhage - that might produce long-term/chronic dysfunction. The relatively large volume and mass of the human cerebral hemispheres - supported by the much smaller brainstem - makes this injury (LOC) more difficult to model in animals.


Concussion Grading, Loss of Consciousness - LOC

Smirniotopoulos, M.D. JGSM - MedPix (2005)

Diagram of head impact.  The brain may move within the skull, causing torque (twisting) of the brainstem that may lead to symptoms - including loss of consciousness.  Dysfunction may result from disruption of the ascending reticular activating system (ARAS) in the posterior brainstem.  The disruption may be transient from an electrical discharge, transient ischemia, or from a brainstem hemorrhage - that might produce long-term/chronic dysfunction.  The relatively large volume and mass of the human cerebral hemispheres - supported by the much smaller brainstem - makes this injury (LOC) more difficult to model in animals.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=MPX2784&req=5

MPX2784_synpic46359: Diagram of head impact. The brain may move within the skull, causing torque (twisting) of the brainstem that may lead to symptoms - including loss of consciousness. Dysfunction may result from disruption of the ascending reticular activating system (ARAS) in the posterior brainstem. The disruption may be transient from an electrical discharge, transient ischemia, or from a brainstem hemorrhage - that might produce long-term/chronic dysfunction. The relatively large volume and mass of the human cerebral hemispheres - supported by the much smaller brainstem - makes this injury (LOC) more difficult to model in animals.

View Article: MedPix Image - MedPix Topic

Affiliation: Uniformed Services University

AUTOMATICALLY GENERATED EXCERPT
Please rate it.

There are several grading systems for concussion and more severe TBI... While them may guide therapy, they also have significant limitations... » WIKI - http://en.wikipedia.org/wiki/Concussion » Grade 3 - ANY Loss of Consciousness ------------------------------------------------ » Grade 1 - Confusion, No LOC, No Amnesia » Grade 3 - Loss of Consciousness ------------------------------------------------ » Grade 3 - LOC > 5 min OR Amnesia > 24 hr ------------------------------------------------ » Grade 6 - Death ------------------------------------------------ eMedicine - http://www.emedicine.com/pmr/TOPIC212.HTM http://www.exra.org/Concussion%20risk-2003.htm http://www.ajnr.org/cgi/content/full/23/9/1442

No MeSH data available.