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Topic: Concussion

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	NeurosurgeryToday.org \| What is Neurosurgery \| Patient Education Materials \| concussion
		Because a concussion is a jarring of the brain, a healthcare professional needs to be consulted and proper period of rest is necessary.
		A concussion is an injury to the brain, usually caused by a blow to the head that results in temporary loss of normal brain function.
		The formal medical definition of concussion is: a clinical syndrome characterized by immediate and transient alteration in brain function including alteration of mental status and level of consciousness, resulting from mechanical force or trauma.
	www.neurosurgerytoday.org /what/patient_e/concussion.asp (1933 words)

	Sport-Related Concussion
		Concussion is the most common head injury that occurs during sport participation, with more than 250,000 injuries reported annually in football players alone.
		A concussion is a temporary alteration in consciousness that occurs immediately after a blow to the head.
		The second concussion may occur after a seemingly minor injury such as a blow to the chest that is strong enough to jar the brain.
	www.hughston.com /hha/a_12_2_3.htm (980 words)

	Concussion (Site not responding. Last check: 2007-10-07)
		A concussion occurs when the head hits or is hit by an object, or when the brain is jarred against the skull, with sufficient force to cause temporary loss of function in the higher centers of the brain.
		Concussion and lasting brain damage is an especially significant risk for boxers, since the goal of the sport is, in fact, to deliver a concussion to the opponent.
		For someone who has sustained a concussion of any severity, it is critically important that he or she avoid the possibility of another blow to the head until well after all symptoms have cleared to prevent second-impact syndrome.
	www.lifesteps.com /gm/Atoz/ency/concussion.jsp (1570 words)

	MedlinePlus Medical Encyclopedia: Concussion
		A concussion is a significant blow to the head that may result in unconsciousness (see also concussion - first aid).
		A concussion may result from a fall in which the head strikes against an object or a moving object strikes the head.
		Concussion complicated by bleeding or brain damage must be treated in a hospital.
	www.nlm.nih.gov /medlineplus/ency/article/000799.htm (615 words)

	CONCUSSION PREVENTION (Site not responding. Last check: 2007-10-07)
		Concussion is an alteration of consciousness, disturbance in vision and equilibrium caused by a direct blow to the head, rapid acceleration and/or deceleration of the head, or direct blow to the base of the skull from a vertical impact to the chin.
		During a blow to the chin, in most instances, the temporal bone is violated as it houses and ports cranial nerve trunks as they exit the base of the brain, blood supply to the brain, and auditory and balance mechanisms.
		With proper thickness in the posterior segment of the mouthguard, the mandible (lower jaw bone) and maxilla (upper jaw bone) are separated, and the force in not transmitted to the base of the brain.
	www.qualitydentistry.com /dental/sdentistry/concuss.html (664 words)

	CONCUSSION IN CHILDREN (Site not responding. Last check: 2007-10-07)
		A concussion (kun-KUSH-un) is an injury to the tissue or blood vessels of the brain.
		Concussions happen when the soft tissues of the brain are forced against the bone of the skull.
		A concussion is usually caused by a blow to the head.
	www.medformation.com /ac/mm_qdis.nsf/qd/nd0709g.htm (1374 words)

	Concussion - DrGreene.com (Site not responding. Last check: 2007-10-07)
		Concussions and head injuries are not contagious, although the risk-taking behavior that leads to them can be.
		With any concussion, the risk is much higher from a second concussion soon after the first one (called the second impact syndrome) because the healing brain is not able to regulate blood flow as well.
		In these guidelines, a Grade III concussion involves a complete loss of consciousness, a Grade II concussion involves only confusion and brief amnesia surrounding the injury, and Grade I involves a player who is only confused after a head blow.
	www.drgreene.com /21_1054.html (804 words)

	Concussion -- eCureMe.com
		A concussion is a type of traumatic brain injury characterized by a transient loss of consciousness without gross anatomical abnormalities of the brain.
		A concussion results from a rapidly uncontrolled head motion or a blow to the head from a high-speed motor vehicle accident, fall or strike by a moving object or assault.
		A concussion may be diagnosed by a physician with a history of accidents and neurologic examinations.
	www.ecureme.com /emyhealth/data/Concussion.asp (264 words)

	Encyclopedia of Nursing and Allied Health: Concussion
		Concussion is a trauma-induced change in mental status, associated with confusion and amnesia, that may or may not be accompanied by a brief loss of consciousness.
		A concussion is usually accompanied by another area of brain injury on the opposite side of the head from the initial blow.
		A person with a grade 2 concussion (no loss of consciousness, transient confusion, and other symptoms that require more than 15 minutes to resolve) must discontinue sports activity for the day, should be evaluated by a trained professional, and should be observed closely throughout the day to make sure that all symptoms have completely cleared.
	www.findarticles.com /p/articles/mi_gGENH/is_/ai_2699003175 (1407 words)

	Head Injuries: Concussions
		Further, allowing a player with a concussion to continue to play or return to early may result in what is known as second impact syndrome and cause severe brain damage and death.
		A concussion occurs when there is a blow to the head causing a rapid deceleration of the skull.
		Return to play after a concussion is based on the amount of time it takes to assure healing of the brain and the ability to protect the head/brain from further injury during a practice or contest.
	www.rugbycoach.com /injuries/concussion.htm (856 words)

	Ontario Brain Injury Association - Concussion Resources (Site not responding. Last check: 2007-10-07)
		Proper management of a concussion is the primary objective of this educational DVD..
		Anyone with a concussion must be discouraged from returning to any activity that places him or her at risk for a second concussion.
		Acceleration-Deceleration Sport-Related Concussion: The Gravity of It All.
	www.obia.on.ca /concussion (441 words)

	The Physician and Sportsmedicine: Summary and Agreement Statement of the First International Conference on Concussion ...
		Concussion may be caused either by a direct blow to the head, face, neck, or elsewhere on the body with an "impulsive" force transmitted to the head.
		Recognizing the importance of a detailed concussion history and appreciating the fact that many athletes will not recognize all the concussions they may have suffered in the past, a detailed concussion history is of value.
		One of the issues that was speculated upon at the conference was whether concussion represents a unitary phenomenon with a linear spectrum of injury severity or whether different concussion subtypes exist.
	www.physsportsmed.com /issues/2002/02_02/aubry.htm (3799 words)

	Concussion
		A concussion is a trauma-induced injury to the brain occurring after a blow to the head.
		A concussion occurs when a blow to the head causes the brain to be jarred against the skull with sufficient enough force to cause temporary loss of function in the higher centers of the brain.
		It is important that a patient who has sustained a concussion of any severity avoid the possibility of another blow to the head until after all symptoms have cleared to prevent second impact syndrome.
	www.hmc.psu.edu /childrens/healthinfo/c/concussion.htm (811 words)

	eMedicine - Concussion : Article by David T Bernhardt, MD
		One definition of concussion is a traumatically induced alteration in mental status with or without associated loss of consciousness.
		Perhaps a better definition of concussion is one that encompasses a broader constellation of symptoms associated with the injury, such as a traumatic alteration in neurological function.
		Recent studies of high school athletes show the rate of concussions per 1000 exposures, as follows: football (0.59 for boys), wrestling (0.25 for boys), soccer (0.18 for boys, 0.23 for girls), field hockey (0.09 for girls), and basketball (0.11 for boys, 0.16 for girls).
	www.emedicine.com /sports/topic27.htm (3549 words)

	Concussions
		Jake may have had a concussion - and it was actually a bad idea for him to stay in the game.
		A grade 2 concussion requires that a player stop playing and not return to any type of sport or physical activity that could cause a head injury for at least another week.
		If a doctor decides that a person has a concussion that's not serious enough to require hospitalization, he or she will give that person instructions on what to do at home.
	kidshealth.org /teen/safety/first_aid/concussions.html (1420 words)

	Concussion, Family Guide to Neuromedicine (Site not responding. Last check: 2007-10-07)
		The classic concussion, which is the most severe form, occurs when the person loses consciousness for a brief period of time and has no memory of the event.
		Mild head injury, such as concussion is a frequent cause for hospital admission, with an estimate of more than 600,000 cases per year in the United States.
		The signs and symptoms of a concussion include severe headache, dizziness, vomiting, increased size of one pupil or sudden weakness in an arm or leg.
	www.muhealth.org /~neuromedicine/concussion.shtml (892 words)

	Post Concussion Syndrome
		But once there has been a concussion, the focus should not be on categorizing how serious the concussion was, but on what deficits the person is left with, after a healing period, and what we can do to minimize the disruption of those deficits upon this persons life.
		Concussion results in organic injury to the brain, in most cases, by the mechanism of diffuse axonal injury.
		This injury is more likely as a result of strain to axons than actual tearing, which over a period of 12-72 hours results in a cascade of events which can disrupt a significant number of neural connections, either because of the death or damage to the axons which connect the neuron bodies.
	www.post-concussion-syndrome.com (740 words)

	Mild Concussion Causes Emotional Upsets
		But a mild concussion can cause all sorts of temporary emotional problems, such as confusion, anxiety, or depression, new research shows.
		The emotional effects of having a mild concussion have not been studied much, writes researcher Lynda M. Mainwaring, PhD, a psychologist and professor of physical and health education at the University of Toronto.
		Mild concussion is likely under-diagnosed, and the effects may be underappreciated in the sports community because its symptoms are often invisible, she writes.
	my.webmd.com /content/article/85/98696.htm (443 words)

	Concussion in Sports -- familydoctor.org (Site not responding. Last check: 2007-10-07)
		A concussion is an injury to the brain.
		If your concussion is very mild, you may be allowed to return to play after 15 or 20 minutes.
		After a severe concussion, you may not be able to return to play for a month.
	familydoctor.org /handouts/458.html (462 words)

	Brain Injury and Concussion
		Doctors often call this type of brain injury a "concussion" or a "closed head injury." Doctors may describe these injuries as "mild" because concussions are usually not life threatening.
		After a concussion, some people lose consciousness or are "knocked out" for a short time, but not always - you can have a brain injury without losing consciousness.
		In rare cases, along with a concussion, a dangerous blood clot may form on the brain and crowd the brain against the skull.
	www.neuroskills.com /tbi/cdcabout.shtml (607 words)

	Encyclopedia: Concussion (Site not responding. Last check: 2007-10-07)
		However, the fluid may not be able to absorb the force of a sudden hard blow or a quick stop.
		A concussion is a temporary loss of awareness or consciousness caused by a blow to the head.
		Most concussions are mild and most people with mild brain injuries recovery fully, but the healing process takes time.
	www.nationmaster.com /encyclopedia/Concussion (152 words)

	3. Caution about concussion
		Concussions are caused by blows to the head.
		Symptoms of concussion appeared among 70 percent of college football players and 63 percent of soccer players.
		The rate of depression for retired players who'd had five or more concussions was three times higher than for retired players without a history of concussion.
	whyfiles.org /190sport_injury/3.html (710 words)

	[No title] (Site not responding. Last check: 2007-10-07)
		The leaves of wild arlan contain a stimulant which heals 1-6 concussion hits when crushed and applied to a wound.
		CATHAANA (I) (Po, RM 917a, m-D-6, Pd, 36 GP, level 1): A white powder prepared from cathan, the nut of the cathantaur, a medium tree of the hickory family native to mild, temperate deciduous and mixed forests.
		When boiled, the tea or broth from a medium to large tuber heals 2-20 concussion hits, and the tuber itself is highly nutritious.
	public.merp.planetmirror.com /References/herbs2.txt (16113 words)

	Concussions
		Sometimes, with a severe concussion, there may be bleeding inside of the head or bruising of the delicate brain.
		Usually someone with a bad head injury will have symptoms of a moderate or severe concussion - such as being knocked out for longer than a few minutes, acting very confused (unable to remember the names of people or places, and sometimes even their own name), vomiting repeatedly, or having a bad headache.
		A kid needs to wait a while after a concussion because if he or she would get another concussion, it could harm the brain more seriously.
	kidshealth.org /kid/health_problems/brain/concussion.html (1177 words)

	Concussion of the brain definition - First Aid: health and medical information written and reviewed by our ...
		Causes: A concussion is not a bruise to the brain caused by hitting a hard surface.
		Impact: The concussion occurs from impact when the head accelerates rapidly and then is stopped, or from spinning when the head is spun rapidly and then is stopped.
		Susceptibility to future concussions: Once a person has had a concussion, he or she is as much as four times more likely to sustain a second one.
	www.medterms.com /script/main/art.asp?articlekey=13166 (747 words)

	A Heads-Up Warning on Concussion
		Researchers found that concussion appears to have an additive effect on injured high school athletes, with the greatest risk to players who had have at least three jarring injuries to their brains.
		"Concussion is a very common injury on the high school level, but the issue is generally given little attention and is not well understood."
		Generally, he says, most athletes who suffer an initial concussion can completely recover as long as they don't return to contact sports too soon.
	my.webmd.com /content/Article/53/61314.htm?pagenumber=1 (289 words)

	MASSACHUSETTS HOCKEY ON-LINE ** Concussion - "Now I know it when I see it!"
		This is the most common, yet most difficult form of concussion to recognize.
		The majority of concussions in sports are of this type.
		GRADE II With a grade 2 concussion, the athlete is not rendered unconscious but exhibits confusion and has amnesia for the events following the impact (post-traumatic amnesia).
	www.masshockey.com /Safety/Concussion (467 words)

	Pittsburgh Sports Concussion Conference (Site not responding. Last check: 2007-10-07)
		More than 250 sports medicine and family practice physicians, athletic trainers, psychologists, neuropsychology clinicians and coaches will gather to learn the latest on how to prevent and treat sports concussion, as well as evaluate the short- and long-term effects of concussion and return-to-play status of concussed athletes.
		Concussion occurs when a person's brain is violently rocked back and forth inside the skull due to a blow to the head or body.
		Concussion can disturb brain activity and symptoms may include disorientation, confusion, dizziness, amnesia, uncoordinated hand-eye movements and sometimes unconsciousness.
	www.neurosurgery.pitt.edu /news/archive/2002/concussionconf.html (556 words)

	Concussion (Site not responding. Last check: 2007-10-07)
		A concussion is a mild brain injury in which trauma to the head results in a temporary disruption of normal brain function.
		A concussion causes symptoms that may last for days, weeks, or even longer.
		Children or adolescents who sustain a mild concussion without loss of consciousness but with confusion or other symptoms lasting more than 15 minutes should avoid activities that would lead to a second head injury for at least one week.
	realmedicine.org /HealthInfoLib/HGArticle.aspx?ArticleID=11942 (668 words)

	Concussion
		Although many concussions result from sports injuries, they can occur whenever your head is subjected to a blow, such as in a car accident or from a fall.
		Ice hockey, football and boxing have the highest rates of concussion among male athletes, although those who play rugby and soccer are also at risk.
		If you have had a concussion and continue to have symptoms such as memory and concentration problems, headaches, dizziness, confusion or irritability, see your doctor.
	www.cnn.com /HEALTH/library/DS/00320.html (1323 words)

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