Coma  

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In medicine, a coma (from the Greek koma, meaning deep sleep) is a profound state of unconsciousness. A comatose patient cannot be awakened, fails to respond normally to pain or light, does not have sleep-wake cycles, and does not take voluntary actions. Coma may result from a variety of conditions, including intoxication, metabolic abnormalities, central nervous system diseases, acute neurologic injuries such as stroke, and hypoxia. It may also be deliberately induced by pharmaceutical agents in order to preserve higher brain function following another form of brain trauma.

See also

  • Brain death, lack of activity in both cortex, and lack of brainstem function
  • Coma scale, a system to assess the severity of coma
  • Locked-in syndrome, Paralysis of most muscles, except ocular muscles of the eyes, while patient is conscious
  • Persistent vegetative state (vegetative coma), deep coma without detectable awareness. Damage to the cortex, with an intact brainstem.
  • Process Oriented Coma Work, for an approach to working with residual consciousness in comatose patients.




Unless indicated otherwise, the text in this article is either based on Wikipedia article "Coma" or another language Wikipedia page thereof used under the terms of the GNU Free Documentation License; or on research by Jahsonic and friends. See Art and Popular Culture's copyright notice.

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