Concussion Flashcards
what are some focal traumatic injuries
-subdural hematoma
-epidural hematoma
what are some diffuse traumatic injuries
-concussion
-diffuse axonal injury
-hypoxia anoxia
what are the clinical subtypes of concussion
- cervical
- vestibular
- ocular
- cog/fatigue
- post traumatic migraine
- anxiety/mood
what is a concussion
TBI induced by biomechanical forces
-caused by direct blow to head, face or neck or indirect blow that transmits forces to head
-clinical signs reflect a functional disturbance rather than a structural injury
-may or may not result in loss of consciousness
what type of TBI is a concussion
mild
what are the causes of TBI
- falls
- MVA
- other
is concussion mechanism physiological or structural
physio
what happens to the brain wtih concussion
-alters neuronal membrane
-increase cell demand for ATP
-increase glucose demand
-deregulation of blood flow in brain
-metabolic demand may be greater than supply
-results in altered cog functino, sensory interpretation etc
what is the prognosis
-typical recovery 24 hours, up to 7-10 days
-prolonged recovery is 10-30 days
-persistent sytoms resulting in post consusion syndrome >30 days
what are poor prognostic factors of a concussion
- severity of acute and subacute symptoms
- prior history of concussion
- posttraumatic migraine
- history of anxiety, depression or ADHD
- dizziness
- cog deficits in first few days
- females
- impact/collision sports
talka bout dizziness and vestibualr dysfunction
-common after concussion and can result in a 6.4x greater likelihood of prolonged recovery
-can be a result of visual, peripheral and central vestibular disturbances, neck tightness
-imbalance and gaze stability defiicits common in athletes
what is the risk of repeat concussion
increases 3x after first event
what is Post-concussive syndrome
-persistence of at least 3 symptoms for >4 weeks
-can be related to neuroinflammation and altered cerebral blood flow
-may be more likely in person with previous TBI
what is chronic traumatic encephalopathy
-diagnosed after death w autopsy
-degenerative brain tissue found in athletes, vetereans nad others with repeated brain trauma
-families may report mood, behavioral, or cog changes that progressively develop
what are some somatic symptoms
-headache
-nausea
-vomit
-balance problems/dizzy
-sensitity to light and noise
-N/T
-blurred vision