2b. Traumatic Brain Injury - Begrippen omgekeerd Flashcards
What does this refer to?
The damage is the result of a moving object that hits the fixed head or the skull is moved by a forceful blow
Acceleration
What does this refer to?
The damage is the result of opposite movements, so the head is moving against a stationary object
Deceleration
What does this refer to?
Disruption of the tissue at the point of impact
Coup
What does this refer to?
(Indirect) disruption of tissue located opposite to the site of impact
Contre-coup
What does this refer to?
Sudden backward acceleration of the skull causes the brain to move forward, striking the front of the skull.
Hyperextension
What does this refer to?
The head recoils forward and suddenly stops, the brain shifts backward, striking the back of the skull.
Hyperflexion
What does this refer to?
Subdural & epidural hematomata can result in a shift of brain matter which is life threatening if not recognized early on.
Traumatic subarachnoid hemorrhage (TSAH)
What does this refer to?
It is the result of severe axonal injury. When an axon is damaged, many neurotransmitters are released, specifically glutamate > this causes an excess of calcium > this causes overexcitation of the already injured neuron
Delayed axotomy
What does this refer to?
This can occur due to massive edema (accumulation of fluid) or to the accumulation of blood caused by disrupted arteries
Increased intracranial pressure
What does this refer to?
This can occur due to laceration of an artery or swelling in the brain. A swelling in the brain hinders the blood flow and thus the supply of oxygen and nutrition to the cells (hypoxia).
Disturbed blood flow
What does this refer to?
The blood’s ability to coagulate (form clots) is impaired
Coagulopathy
What does this refer to?
Having a temperature above the normal range (fever)
Pyrexia
What does this refer to?
When parts outside the brain are damaged (e.g. blood loss in leg) this may lead to failing of autoregulation such as shock or hypertension > then the brain receives insufficient oxygen leading to brain ischemia
Hypoxia
What does this refer to?
The period between coma and fully consciousness
Minimally conscious state
What does this refer to?
A state of confusion immediately following TBI. A person is disoriented, unable to remember events prior and after the injury.
Post Traumatic Amnesia (PTA)