| Symptoms
After a traumatic brain injury, a person can
experience a variety of symptoms but not necessarily all of the
following symptoms. (This information is not intended to be a substitute
for medical advice or examination). A person with a suspected brain
injury should contact a physician immediately, go to the emergency
room, or call 911 in the case of an emergency. Symptoms of a traumatic
brain injury include, but are not limited to, any of the following:
- Slow pulse
- Slow breathing rate, with an increase in blood pressure
- Vomiting
- Lethargy (sluggish, sleepy, gets tired easily)
- Headache
- Confusion
- Ringing in the ears, or changes in ability to hear
- Difficulty with thinking skills (difficulty “thinking
straight”, memory problems, poor judgment, poor attention
span, a slowed thought processing speed)
- Inappropriate emotional responses (irritability, easily frustrated,
inappropriate crying or laughing)
- Difficulty speaking, slurred speech, difficulty swallowing
- Body numbness or tingling
- Loss of bowel control or bladder control
- Sleep disorders
- Fatigue
- Depression
- Spinal fluid (thin water-looking liquid) coming out of the
ears or nose
- Loss of consciousness; however, loss of consciousness may not
always occur
- Dilated (the black center of the eye is large and does not
get smaller in light) or unequal size of pupils
- Vision changes (blurred vision or seeing double, not able to
tolerate bright light, loss of eye movement, blindness)
- Dizziness, balance problems
- Respiratory failure (not breathing)
- Coma (not alert and unable to respond to others) or semicomatose
state
- Paralysis, difficulty moving body parts, weakness, poor coordination
To appreciate the extent of a precipitating injury, it is helpful
to understand two commonly used medical scales that may be found
in medical charts involving traumatic brain injuries.
The first is the Glasgow Coma Scale which rates a patient’s
ability to open his/her eyes, response to verbal commands, and verbal
responses. Each level of response indicates the degree of brain
injury.
Glasgow Coma Scale
| Eyes |
Scores |
- Open spontaneously
- Open to verbal command
- Open to pain
- No response
|
4
3
2
1 |
| Best motor response to a verbal
command |
|
| |
6 |
| Best motor response to painful stimulus |
|
- Localizes pain
- Flexion - withdrawal
- Flexion - abnormal
- Extension
- No response
|
5
4
3
2
1 |
| Best verbal response |
|
- Oriented and converses
- Disoriented and converses
- Inappropriate words
- Incomprehensible sounds
- No response
|
5
4
3
2
1 |
The lowest score is a 3 and indicates no response from the patient.
A person who is alert and oriented would be rated at 15.
Rancho Los Amigas Cognitive Scale
The Rancho Los Amigas Cognitive Scale describes levels
of function and is used to assess the efficacy of treatment programs.
The scale scores cover deep coma to appropriate functioning. Most
patients will demonstrate characteristics from several levels at
once.
- Level I: no response to pain, touch, sound or sight.
- Level II: generalize reflex response to pain.
- Level III: localized response to pain. Blinks to strong light,
turns toward or away from sound, responds to physical discomfort,
inconsistent response to commands.
- Level IV: confused/agitated. Alert, very active, aggressive
or bizarre behaviors, performs motor activities but behavior is
non-purposeful, extremely short attention span.
- Level V: confused/non-agitated. Gross attention to environment,
highly distractible, requires continual redirection, difficulty
learning new tasks, agitated by too much stimulation. May engage
in social conversation but with inappropriate verbalization.
- Level VI: confused/appropriate. Inconsistent orientation to
time and place, retention span/recent memory impaired, begins
to recall past, consistently follows simple directions, goal-directed
behavior with assistance.
- Level VII: automatic/appropriate. Performs daily routine in
highly familiar environment in a non- confused but automatic robot-like
manner. Skills noticeably deteriorate in unfamiliar environment.
Lacks realistic planning for own future.
- Level VIII: purposeful/appropriate.
Explanation of Symptoms
Following traumatic brain injuries sight, sound,
taste, touch and smell can suffer decreased or increased sensitivity,
or a complete loss. Loss of sensation to parts of the body and hypersensitivity
are also common. Double vision, loss of depth perception, and an
inability to see on one side of the body can occur. Loss of proprioception
(the inability to know where arms and legs are in relationship to
the body) may also take place.
Fatigue is extremely common in the early stages
following injury. In many cases the fatigue is profound and staying
alert and awake for these patients is difficult. This can easily
be confused with being unmotivated because these patients have difficulty
paying attention and are often sleepy.
Speech disorders follow damage to the cranial
nerve which enervates the face. Dysarthria, difficulty in pronouncing
words, characterized by slurred or slow speech or loss of the ability
to vocalize, results from weak muscles or reduced coordination of
the muscles required to produce speech. A closely related condition,
dysphagia, the inability to swallow and chew properly, can be readily
observed when a patient extends his/her neck or engages in some
accommodating movement when swallowing. Reports of choking or the
need to soften food with water before swallowing are significant.
Sleep disorders are another area of inquiry. Total
reversals of sleep patterns, the need for multiple naps and rest
periods and loss of bowel and bladder control are reported.
Neurologic damage readily disrupts how a person
thinks and processes information. Memory, attention, organization,
planning, and perception are functions disrupted by traumatic brain
injuries. Attention and concentration is something most of us do
well. We pay attention and focus on a specific task and block out
distractions both internal and external. Survivors of traumatic
brain injuries quickly change subjects and have difficulty following
through an idea or a sequence to completion. The slightest distraction
causes a complete loss of concentration and results in confusion.
Without attention and concentration, learning cannot occur.
Significant confusion following a head injury
is so common that the primary medical inquiry is to establish if
the patient is oriented. Not knowing the day, week, year, or where
they are, results in the patient asking searching questions. Coping
with confusion is extremely frustrating and leads to more confusion.
As a defense mechanism to bring rationality to their existence,
many patients will develop their own explanation or history, integrating
some accurate information, into a fabric of reality and fantasy.
Confabulation is not coping with reality, but it is more closely
associated with denial and is a defense mechanism.
Patients have difficulty planning which is known
as impaired executive function. Planning requires good memory, learning,
judgment, attention and organizational skills. Difficulty in following
a logical progression or focusing or getting stuck on one step,
stage or activity raises frustrations. Dealing with abstract concepts
as literal facts is additionally confusing. Aphorisms, such as a
complimentary "you are a tough cookie," are interpreted
to mean that the listener is a piece of food that is extremely hard
to chew.
The most significant hurdle to learning after injury is memory
loss and impairment. The mind’s capacity to receive,
store, and retrieve information is affected. Short-term memory and
recalling what happened yesterday is more common than the loss of
recall for older information. This should not be confused with retrograde
amnesia, which is the inability to recall events before injury.
Anterograde amnesia is the inability to recall events that have
occurred since injury.
Impaired communication skills, such as aphasia,
the inability to understand or recall the simplest words, is caused
by brain cell damage, not by physical inability to speak. Patients
who have difficulty understanding are diagnosed with receptive aphasia.
Expressive aphasia is the diagnosis for those having difficulty
remembering words, naming objects or expressing ideas.
Impaired judgment may often occur. Being stimulus
bound is when the brain only recognizes and reacts to objects and
events in the immediate environment. Applying a task to a similar
but different situation cannot be accomplished. Difficulty in interpreting
the actions or inaction of others is common. Those who show concern
and attention can be viewed as being angry toward the patient.
People with impaired memory may remember and retain
old skills, but learning new ones require repeated instructions
and extended practice. Even then they can be readily forgotten,
with accompanying frustration, depression, and anger.
Frontal lobe injuries can be interpreted as causing
dullness because this area of the brain controls impulses, motivation
and initiation. These patients need to be reminded and prompted
in simple tasks, such as daily care and living tasks. Regular encouragement
and visual cues are helpful in prompting initiation.
In addition to physical consequences of traumatic brain injuries,
the ability to understand feelings and the ability to control
emotions are impacted. A whole range of behavioral symptoms
occur with traumatic brain injuries: agitation, depression, frustration,
rapid changes in emotion and severe mood changes, insensitivity
to others, self-centeredness, rage tantrums, poor impulse control,
loss of inhibition, decreased libido, inappropriate sexual expression
and loss of self-esteem. Pre-existing conditions may also be amplified
following traumatic brain injuries.
Lost motor control or weakness of one arm or leg
or on one side of the body is known as hemiparesis. Poor balance,
decreased endurance, loss of the ability to plan movements of arms,
legs and poor coordination are evident. Patients experience spasticity
or abnormal tone and muscle stiffness.
Seizures can occur immediately or may be delayed
until months or even years after the initial trauma. A seizure is
a burst of abnormal electrical energy in the brain. In generalized
seizures, or major motor seizures, the entire body stiffens. Loss
of consciousness, irregular breathing, and loss of bowel and bladder
accompany severe shaking. After regaining consciousness, the patient
reports soreness and confusion. A second category of seizures are
known as focal motor or partial seizures which present as jerking
movements or twitching. Consciousness remains intact and often is
viewed as a loss of concentration. Often the patient does not know
that a seizure has taken place.
Patients suffering mild to severe brain injuries may have hospital
and rehabilitation care from a wide range of professionals. Knowing
the role of these providers is important to appreciating the significance
and magnitude of traumatic brain injuries and in formulating a courtroom
presentation that explains the breadth of disability a patient must
endure.
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