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Topic: Coma

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In the News (Wed 20 Mar 19)

  Coma - Wikipedia, the free encyclopedia
Comas can also be caused by focal lesions or strokes affecting only a small part of the brain and may be either supratentorial or infratentorial.
The difference between coma and stupor is that a patient with coma cannot give a suitable response to either noxious or verbal stimuli, whereas a patient in a stupor can give a crude response, such as screaming, to an unpleasant stimulus.
Coma is also to be distinguished from the persistent vegetative state which may follow it.
en.wikipedia.org /wiki/Coma   (1099 words)

 Coma (disambiguation) - Wikipedia, the free encyclopedia
In astronomy, a coma is part of the tail of a comet, produced by vapor boiled off the comet as it nears the sun.
In optics, a coma is an optical aberration in an astronomical telescope which causes a V-shaped flare to the image of a star.
COMA (Community Of Moral Advancement) is the original name of the Finnish demo group Kooma.
en.wikipedia.org /wiki/Coma_(disambiguation)   (209 words)

Coma is an extended period of unconsciousness from which a person cannot be aroused even with the most painful stimuli.
The main symptom of a coma is the inability to be aroused to consciousness.
The progress of coma is measured by the patient's increasing awareness of external stimuli.
www.mamashealth.com /coma.asp   (645 words)

 Home | aHealthyme.com
Coma, from the Greek word "koma," meaning deep sleep, is a state of extreme unresponsiveness, in which an individual exhibits no voluntary movement or behavior.
Anatomic causes of coma are those conditions that disrupt the normal physical architecture of the brain structures responsible for consciousness, either at the level of the cerebal cortex or the brainstem, while metabolic causes of coma consist of those conditions that change the chemical environment of the brain, thereby adversely affecting function.
Coma is a medical emergency, and attention must first be directed to maintaining the patient's respiration and circulation, using intubation aand ventilation, administration of intravenous fluids or blood as needed, and other supportive care.
www.ahealthyme.com /article/gale/100084370   (1561 words)

 Stupor and Coma: Merck Manual Home Edition
Coma is a state of complete unresponsiveness, from which a person cannot be aroused at all.
Coma that results from acute, severe liver failure causes fluid accumulation in the brain (cerebral edema) and is often fatal.
Because a coma may also be due to a brain tumor or hemorrhage, emergency CT or MRI of the brain is often performed before the spinal tap to determine whether the increased pressure inside the skull has forced the brain downward in the skull.
www.merck.com /mmhe/sec06/ch084/ch084a.html   (2611 words)

Coma is a state of profound unconsciousness in which the patient is incapable of conscious behavior.
Coma implies dysfunction of the cerebral hemespheres, the upper brain stem, or both areas.
A Coma Score of 13 or higher correlates with a mild brain injury, 9 to 12 is a moderate injury and 8 or less a severe brain injury.
www.headinjury.com /coma.htm   (1149 words)

 Coma -- eCureMe.com
Coma, quite simply, is a state of prolonged "unconsciousness", in which one is not able to respond appropriately to the incoming stimuli by reacting.
Coma is also different from stupor, a state in which an unconscious individual eventually responds to repeated stimuli.
Coma results from an insult or injury to the brain that affects the structure or metabolic activities of the brain.
www.ecureme.com /emyhealth/data/Coma.asp   (781 words)

 comet coma comet coma comet coma comet coma   (Site not responding. Last check: 2007-09-20)
The gas coma consists of molecules liberated from the nucleus by solar heating and sublimation.
The outflow speed of the coma is comparable to the speed of sound in the coma gas at the temperature of the nucleus.
The dust coma consists of dust grains dragged from the nucleus by the rush of sublimating gas.
www.ifa.hawaii.edu /faculty/jewitt/coma.html   (619 words)

 Coma - neurologychannel
A coma is a deep state of unconsciousness, during which an individual is not able to react to their environment.
Sometimes, following a coma, a person may enter what is known as a persistent vegetative state; patients in persistent vegetative state have lost all cognitive neurological function but are still able to breathe and may exhibit various spontaneous movements.
There are various other terms, in addition to coma and vegetative state, that are used to describe varying levels of unconsciousness and a person's ability to respond to stimuli.
www.neurologychannel.com /coma   (692 words)

 APPROACH TO A PATIENT IN COMA   (Site not responding. Last check: 2007-09-20)
Coma is caused by diffuse bilateral brain, diencephalic or brainstem disease.
The coma state should be distinguished from stupor, the persistent vegetative state, locked-in-syndrome, akinetic mutism, catatonia, pseudocoma and brain death.
Coma should be distinguished from related states such as stupor, the persistent vegetative state, akinetic mutism, locked-in-state, catatonia, and pseudocoma.
www.neuro.mcg.edu /amurro/coma   (1445 words)

 What Is Coma?
While a person described as being in a coma may be totally unaware of his or her state or environment, others may have some or even full awareness, contrary to our own perception of their condition.
Commonly, when coma lasts for a month or more, the individual's eyes may be open and may blink even though the person's stare is vacant, no purposeful responses occur, and no signs of awareness appear.
One limitation to the use of the GCS is the uncertainty as to how long after the onset of coma or injury to the brain it remains a useful assessment tool, and whether it is applicable to brain injuries resulting from causes other than a blow to the head.
www.tbihelp.org /what_is_coma.htm   (2110 words)

 Barbiturate-induced coma
A barbiturate-induced coma, or barb coma, is a temporary state of unconsciousness brought on by a controlled dose of a barbiturate drug, usually pentobarbital or thiopental.
Barbiturate comas are used to protect the brain during major brain surgery, such as the removal of arteriovenous malformations or aneurysms.
Before coma is induced, intracranial hypertension may be treated by hyperventilation; by facilitation of blood flow from the brain; by decompressive surgical procedures, such as draining excess fluids from under the skull or from the chambers within the brain (ventricles); or by drug therapy, including osmotherapy, diuretic agents, or steroids.
www.lifesteps.com /gm/Atoz/ency/barbiturate-induced_coma.jsp   (809 words)

 Coma and Astigmatism
Coma is an aberration which causes rays from an off-axis point of light in the object plane to create a trailing "comet-like" blur directed away from the optic axis.
A lens with considerable coma may produce a sharp image in the center of the field, but become increasingly blurred toward the edges.
Oblique astigmatism is an aberration of off-axis rays that causes radial and tangential lines in the object plane to focus sharply at different distances in the image space.
hyperphysics.phy-astr.gsu.edu /hbase/geoopt/coma.html   (150 words)

 The MSDS HyperGlossary: Coma
A coma is a deep and prolonged state of unconsciousness that results from injury (especially to the head); disease (such as encephalitis or uncontrolled diabetes); hypoxia or anoxia (from suffocation or near-drowning, for example); or exposure to toxic and/or poisonous substances.
Coma is the body's least responsive level of consciousness before death.
Comas outwardly resemble a state of deep sleep, but are actually quite more complex.
www.ilpi.com /msds/ref/coma.html   (377 words)

 Coma Berenices
The constellation Coma Berenices refers to a classical story concerning the hair of Berenice, the wife of Ptolemy III of Egypt.
Beta Comae is actually the brightest star in the constellation, and certainly the closest at 27 light years.
R Comae is a long-period variable with period of 362.82 days, and range of 7.1 to 14.6.
www.dibonsmith.com /com_con.htm   (1290 words)

 Coma and Persistent Vegetative State Information Page: National Institute of Neurological Disorders and Stroke (NINDS)
coma is a profound or deep state of unconsciousness.
An individual in a state of coma is alive but unable to move or respond to his or her environment.
Coma may occur as a complication of an underlying illness, or as a result of injuries, such as head trauma.
www.ninds.nih.gov /disorders/coma/coma.htm   (523 words)

 What Is a Coma?
A coma can be difficult to understand, especially because people sometimes jokingly use the words coma and comatose (say: ko-muh-tohss), which means in a coma or coma-like state) to describe people who aren't paying attention or who are drowsy or sleeping.
If someone is in a coma, he is unconscious and will not respond to voices, other sounds, or any sort of activity going on around him.
They may not be exactly like they were before the coma, but they can do a lot of things and enjoy life with their family and friends.
kidshealth.org /kid/talk/qa/coma.html   (803 words)

 Music Therapy Research - Coma
This resource includes definitions under the global term coma, specific music therapy techniques to use with coma patients, and a description of the music therapy treatment process as well as of the therapeutic role of music.
It could be helpful for comparing two scales of coma assessment or when looking for information on one or both of the scales.
Coma rating scores using the Glasgow Coma Scale may be very confusing because composite scores are used.
www.uwec.edu /rasarla/research/litandgoals/Other/coma.htm   (2066 words)

The ketoacidotic coma is a loss of consciousness that occurs when the body is in ketosis.
Hyperosmolar coma is the loss of consciousness that happens when the body has lost unusual amounts of fluid due to excessive amounts of glucose in the blood.
Hypoglycemic coma can be part of insulin shock that occurs when a significantly large amount of insulin is injected compared to the glucose present in the blood.
www.montana.edu /wwwai/imsd/diabetes/coma.htm   (686 words)

 Coma Basics
Coma differs from sleep in that one cannot be aroused from a coma.
Coma patients may be restrained to keep them from removing tubes or dislodging IVs.
While we can expect that a patient may slowly emerge over time, some patients can suffer from "locked in" syndrome in which they are awake but unable to react or act upon their environment, or recover to a point where they have limited capacities, or have a limited recovery which will require long term care.
www.waiting.com /comabasics.html   (515 words)

 Coma Removal Instructions :: Remove and Uninstall Coma
Coma is a backdoor Trojan that provides an unauthorized user with almost total control over your computer.
Coma allows this anonymous user to perform a wide variety of actions, which can vary from simply irritating -- such as displaying annoying messages and opening or closing your CD-ROM -- to damaging -- like capturing your private information or making your computer completely unusable.
Coma is also used as a vehicle to upload other parasites onto your system.
www.spywareremove.com /removeComa.html   (193 words)

 How deep is Arafat's coma? By Brendan I. Koerner
Though some Palestinian officials have been quoted as saying the longtime PLO leader is already dead, the French doctors tending to Arafat insist he's still alive, albeit in a "deeper coma" than the one he was in a few days ago.
Coma patients who score low on the GCS can make miraculous recoveries, but the odds are against them.
In rehabilitative settings, by contrast, where long-term coma patients are often taken, the more popular measurement of coma depth is the Rancho Los Amigos Scale.
www.slate.com /id/2109395   (504 words)

Coma is defined as a state of unconsciousness from which the individual cannot be awakened, in which the individual responds minimally or not at all to stimuli, and initiates no voluntary activities.
A coma is a continued unconscious state that can occur as part of the natural recovery for a person who has experienced a severe brain injury.
The Glasgow Coma Scale is used to determine the severity of a brain injury.
www.biausa.org /Pages/coma.html   (2223 words)

The brain stem is the bridge between the brain and the spinal cord.
Coma is a state of consciousness that is similar to deep sleep, except no amount of external stimuli (such as sounds or sensations) can prompt the brain to become awake and alert.
The person's prognosis depends on the cause and severity of the coma but, generally, anyone who falls into a comatose state is at risk of dying.
www.disability.vic.gov.au /dsonline/dsarticles.nsf/pages/Coma?OpenDocument   (1028 words)

 Coma Suspension - BME Encyclopedia   (Site not responding. Last check: 2007-09-20)
A coma suspension is a horizontal suspension where the hooks are pierced through the front of the body, so the person floats on their back, as if in an isolation tank.
The name is derived from the movie "Coma," where the figures seem suspended in a similar fashion ("the poster image is still stuck in my head from when I was a kid"—Allen Falkner).
In rare cases, the head may be hooked as well, but it is usually strapped or simply left to support itself.
encyc.bmezine.com /?Coma_Suspension   (94 words)

Coma Diaries - A resource and support guide on coma and brain injury for family and friends of survivors.
Coma Waiting Menu - Information about brain injuries and coma recovery, optimized for Web TV for use in hospitals.
Myxedema Coma - A rare complication of untreated hypothyroid disease.
www.ability.org.uk /Coma.html   (101 words)

 Diabetes and coma
Ketoacidotic coma is more common in people with Type 1 diabetes, which is also known as juvenile diabetes or insulin dependent diabetes mellitus (IDDM).
A hyperosmolar coma is caused by severe dehydration and very high blood glucose levels (hyperglycaemia).
Those at most risk of this type of coma are people with Type 2 diabetes, who have an infection or acute illness and have reduced their intake of fluids or are taking diuretic medication or steroids.
www.betterhealth.vic.gov.au /bhcv2/bhcarticles.nsf/pages/diabetes_and_coma?opendocument   (680 words)

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