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Concussion - Definition of Concussion in the Medical Dictionary
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concussion - definition of concussion in the Medical dictionary - by the Free Online Medical Dictionary, Thesaurus and Encyclopedia. http://medical-dictionary.thefreedictionary.com/co ncussion[25.02.2013 11:28:21] Ads by Google ? ? ? 4,802,854,540 visitors served. T E X T TheFreeDictionary Google Bing ? Word / Article Starts with Ends with Text Dictionary/ thesaurus Medical dictionary Legal dictionary Financial dictionary Acronyms Idioms Encyclopedia Wikipedia encyclopedia ? concussion Also found in: Dictionary/thesaurus , Legal , Encyclopedia, Wikipedia 0.01 sec. This site: Like 18k Follow: Share: This page: Like 2 0 Share: On this page Word Browser Advertisement (Bad banner? Please let us know) 1 Tip to Shed 9lbs Weekly Cut 9 pounds of stomach fat every week by using this 1 weird old tip www.thehealthandwellness.com Concussion Definition Concussion is a trauma-induced change in mental status, with confusion and amnesia, and with or without a brief loss of consciousness. Description 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. The injured person may remain conscious or lose consciousness briefly, and is disoriented for some minutes after the blow. According to the Centers for Disease Control and Prevention, approximat ely 300,000 people sustain mild to moderate sports-related brain injuries each year, most of them young men between 16 and 25. While concussion usually resolves on its own without lasting effect, it can set the stage for a much more serious condition. "Second impact syndrome" occurs when a person with a concussion, even a very mild one, suffers a second blow before fully recovering from the first. The brain swelling and increased intracranial pressure that can result is potentially fatal. More than 20 such cases have been reported since the syndrome was first described in 1984. Causes and symptoms Causes Most concussions are caused by motor vehicle accidents and sports injuries. In motor vehicle accidents, concussion can occur without an actual blow to the head. Instead, concussion occurs because the skull suddenly decelerates or stops, which causes the brain to be jarred against the skull. Contact sports, especially football, hockey, and boxing, are among those most likely to lead to concussion. Other significant causes include falls, collisions, or blows due to bicycling, horseback riding, skiing, and soccer. The r isk of con cussi on fr om foo tb all i s ext rem ely h igh , espe cial ly at th e hig h sch ool le vel . Stud ies sho w th at a pp rox imat ely one i n fiv e pla yer s suf fer con cuss ion or more se rio us br ain inj ur y during their brief high-school careers. The rate at the collegiate level is approximately one in 20. Rates for hockey players are not known as certainly, but are believed to be similar. 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 this reason, the American Academy of Neurology has called for a ban on boxing. Repeated concussions over months or years can cause cumulativehead injury. The cumulative brain injuries suffered by most boxers can lead to permanent brain damage. Multiple blows to the head can cause "punch-drunk" syndrome or dementia pugilistica, as evidenced by Muhammaed Ali, whose parkinsonism is a result of his career in the ring. Young chi ldr en ar e lik ely to s uff er co ncu ssion s fr om fal ls or co llis ion s on t he pl ayg rou nd or aroun d t he ho me .Child abuse is, unfortunately, another common cause of concussion. Symptoms Symptoms of concussion include: headache disorientation as to time, date, or place confusion dizziness vacant stare or confused expression incoherent or incomprehensible speech incoordination or weakness amnesia for the events immediately preceding the blow nausea or vomiting double vision ringing in the ears These sy mp toms may l ast f rom sev eral minu te s to se ve ral hours. Mor e sev ere o r lon ger-l ast ing sym pt oms may ind icat e more s eve re br ain inj ury . The pe rso n wi th a c oncussion may o r may not lose consciousness from the blow; if so, it will be for several minutes at the most. More prolonged unconsciousness indicates more severe brain injury. The sev eri ty of c onc ussio n is gr ade d on a t hre e-poi nt sc ale, used a s a basi s for t rea tm ent dec isio ns. Grade 1: no loss of consciousness, transient confusion, and other symptoms that resolve within 15 minutes. Grade 2: no loss of consciousness, transient confusion, and other symptoms that require more than 15 minutes to resolve. Grade 3: loss of consciousness for any period. Days or weeks after the accident, the person may show signs of: headache poor attention and concentration memory difficulties anxiety depression Page tools Printer friendly Cite / link Feedback Add definition Advert isemen t(Bad banner?P lease let us know) Related Ads ▪ concussion ▪ Diabetes Symptom s ▪ Stroke Causes ▪ Stroke Symptom s ▪ Headache Causes ▪ Pregnancy S ympt om ▪ Mild Brain Injury ▪ Diabetes Signs ▪ Symptoms Headache ▪ Hockey My Word List Add current page to the list Advert isemen t(Bad banner?P lease let us know) Charity Feed a hungry child - donate to school feeding program concussion Search
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