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Stroke was once
viewed unpreventable and
untreatable. People therefore, did
not treat stroke with the urgency
that we now believe is needed. As
such, stroke is now being referred
to as a "brain attack." The belief
is that if brain attacks are treated
with the same urgency as heart
attacks, the mortality rate will
begin to decline. |
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A view of the
skull. |
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A brain attack is
similar to a heart attack in that a
small clot forms in one of the many
blood vessels in the brain. Once
occluded, the area of the brain
beyond the clot will begin to die.
The immediate area of the clot
begins dying within minutes due to
the lack of oxygenated blood. We are
now aware of an occurrence called
the "ischemic cascade" in which the
area surrounding the clot will begin
to die due to diminished blood flow.
Because of this, the window of
opportunity for treatment after a
stroke occurs is about 6 hours. |
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The location of
the clot and the time to seek
treatment will indicate the effects
of the stroke. The most common
disabilities from stroke are
paralysis, decreased vision or
blindness, difficulty or the
inability to speak or death. Your
brain is designed with a crossover
in the middle part of the brain. An
attack which occurs on the right
side of the brain will affect the
left side of the patient's body. |
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It is believed
that the reason people do not seek
treatment for stroke during the
window of opportunity or prior to
the attack is that the symptoms of
stroke are not widely known or
understood. Some feel the symptoms
they are experiencing are associated
with other factors, such as age,
lack of nutrition or poor sleeping
habits. Common symptoms of brain
attack are: |
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Sudden blurred or
decreased vision in one or
both eyes |
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Loss of balance or
coordination |
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difficulty speaking or
understanding simple
statements |
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weakness/numbness/paralysis
in the face, arm or leg |
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Some brain
attacks manifest in the form of an
aneurysm or intracranial bleed. In
this case a blood vessel in the
brain actually bursts and
continually pumps blood into the
brain space with each heart beat.
These patients will deteriorate
rapidly due to the increasing
pressure being placed on the brain.
Often times, an aneurysm is a fatal
event. |
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Another form of
brain attack is much less serious
and actually very common. These
"transient ischemic attacks", or
TIA's, manifest initially like a
stroke, but the patient recovers
very quickly and is left with no
long-term disabilities. Patient's
may feel numbness or tingling,
difficulty speaking, vision changes
or dizzy spells. TIA's are often
caused by blockages in the carotid
arteries, which are the blood supply
for the brain. |
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A view of the
skull. |
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Brain
attack is the nation's third
leading cause of death,
claiming nearly 160,000
Americans each year. Every
year, 750,000 Americans have
a stroke. This works out to
a brain attack every 45
seconds. The US is left with
4 million people living with
the effects of a stroke.
Although brain attack shows
a higher incidence in the
older population, it can
occur at any age. Two thirds
of strokes occur in people
over the age of 65 and the
stroke risk doubles with
each decade after age 55.
First aid treatment for any
type of brain injury is
relatively simple regardless
of the cause. |
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First, always
perform the ABC's. Then, notify EMS
to get help on the way. You may
place the patient in the recovery
position to protect their airway.
Always lay the patient on the
affected side of their body. When
available, oxygen is an excellent
adjunct to treatment. |
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Some of the main
causes of stroke are high blood
pressure, high cholesterol, age and
sedentary lifestyle. Medical
advances yield the ability to take
CAT scans and MIZI's of the
patient's brain to locate the exact
position of the brain attack.
Medications and possibly surgery are
the treatments of choice for these
brain attacks, provided the patient
seeks medical help early enough. |