brain injury Flashcards
a life-threatening emergency in patients with spinal cord injury that causes a hypertensive emergency
autonomic dysreflexia
a condition that involves total loss of sensation and voluntary muscle control below the lesion
complete spinal cord lesion
a temporary loss of neurologic function with no apparent
structural damage to the brain
concussion
bruising of the brain surface
contusion
a condition in which there is preservation of the sensory or motor fibers, or both, below the lesion
incomplete spinal cord lesion
bladder dysfunction that results from a disorder or dysfunction of the nervous system; may result in either urinary retention or bladder overactivity
neurogenic bladder
paralysis of the lower extremities with dysfunction of the bowel and bladder from a lesion in the thoracic, lumbar, or sacral region of the spinal cord
paraplegia
initial damage to the brain that results from the traumatic
event
primary injury
an insult to the brain subsequent to the original traumatic event
secondary injury
an injury to the spinal cord, vertebral column, supporting soft tissue, or intervertebral discs caused by trauma
spinal cord injury (SCI)
varying degrees of paralysis of both arms and legs, with dysfunction of bowel and bladder from a lesion of the cervical segments of the spinal cord
tetraplegia
formerly called quadriplegia
tetraplegia
severing of the spinal cord
transection
severing all the way through the cord
complete transection
severing partially through the cord
incomplete transection
an injury to the skull or brain that is severe enough
to interfere with normal functioning
traumatic brain injury
another word for traumatic brain injury
craniocerebral trauma
occurs when the head accelerates and then rapidly decelerates or collides with another object and brain tissue is damaged, but there is no opening through the skull and dura
closed traumatic brain injury
occurs when an object penetrates the skull, enters the brain, and damages the soft brain tissue in its path (penetrating injury)
open traumatic brain injury
when blunt trauma to the head is so severe that it opens the scalp, skull, and dura to expose the brain
open traumatic brain injury
encompasses any damage to the head as a result of trauma
head injury
why would a scalp injury bleed profusely
because of the many blood vessels that constrict poorly
what are the locations of fractures
temporal, frontal, basal
a break in the continuity of the bone
linear fracture
splintered or multiple fracture line
comminuted fracture
a fracture where the skull is forcefully displaced downwards
depressed skull fracture
scalp laceration or tear in the dura
open fracture
dura is intact
closed fracture
what are clinical manifestations of head injury
persistent localized pain
swelling
hemorrhage from the nose
blood under the conjunctiva
battle sign
CSF otorrhea
CSF rhinorrhea
ecchymosis seen over the mastoid
battle sign
what are the diagnostic tests for head injury
computed tomography scan
magnetic resonance imaging scan
types of brain injuries
focal
diffuse
the brain is bruised and damaged in a specific area because of severe acceleration–deceleration force or blunt trauma.
contusion
characteristics of contusions
loss of consciousness
hemorrhage
edema
contusion effects of injury peak after what time
18 to 36 hours
types of hematoma
epidural (above the dura)
subdural (below the dura)
intracerebral (within the brain)
this subdural hematoma is caused some kind of head injury
acute subdural hematoma
brain damage that occurs directly under the point of impact
coup injury
occurs on the opposite side of the brain from where the head is stuck
countercoup injury
brain is bruised and damaged in a specific area
cerebral contusion
where is the origin of the epidural hematoma
middle meningeal artery
what is the cause of epidural hematoma
skull fracture
a period when patient is awake and conversant (time where compensator mechanism is working)
lucid interval
where is the origin of the bleeding of subdural hematoma
venous
types of subdural hematoma
chronic and acute
subdural hematoma associated with major head injuries
acute subdural hematoma
what are manifestations of acute subdural hematoma
rapidly developing symptoms
altered level of consciousness
pupillary signs
hemiparesis
what are the sighs of rapidly expanding mass
coma
cushing’s triad (hypertension, bradycardia, bradypnea)
this type of subdural hematoma develops from minor head injuries and are common among older adults
chronic subdural hematoma
what are the manifestations of chronic subdural hematoma
severe headache (on and off)
alternating focal neurologic signs
personality changes
mental deterioration
focal seizures
what is the location of intracerebral hematoma
cerebral parenchyma
what are the causes of intracerebral hematoma
head injuries involving severe force to the head over a small area
raptured aneurysm
hypertension
bleeding disorders
what are the manifestations of intracerebral hematoma
neurologic deficits - initial sign
headache
what are the medical management of intracerebral hematoma
supportive care
control of icp
fluid and electrolyte replacement
antihypertensive
what are the surgical management for intracerebral hematoma
craniotomy
craniectomy
what is a mild form of neurologic brain injury
concussion