Vim & Vigor - Winter 2016 - Community Healthcare - 45

First, some definitions: Ischemic strokes
occur when a blood clot obstructs a vessel that supplies blood to the brain. They
account for 87 percent of all strokes.
Hemorrhagic strokes occur when a weakened section of blood vessel bursts and
leaks blood into the brain. They account
for 13 percent of all strokes but 40 percent of all stroke deaths.
Some people will get a warning, called
a transient ischemic attack (TIA), or
ministroke, before having a full stroke.
A TIA is a stroke that spontaneously
resolves itself. Approximately 40 percent
of people who have a TIA will go on to
have a full stroke, often within five days.
Strokes are the fifth-leading cause of
death and the No. 1 cause of disability
in the U.S. But the good news is that
up to 80 percent of all strokes can be
prevented through proper nutrition,
exercise, smoking cessation and the treatment of underlying risk factors, such as
high blood pressure and high cholesterol.
See what's going on inside the blood vessels before, during and after a stroke so
you can learn how to protect yourself.
WHAT'S HAPPENING:

ISCHEMIC STROKE

BEFORE: Blood vessel in the
brain becomes narrow because of
plaque buildup.

DURING: Blood clot forms at the site
of the plaque buildup or in the heart
and travels to the site of the buildup in
the brain and gets stuck. Blood supply is
reduced or cut off beyond the blockage.
Without adequate blood (and oxygen),
brain cells begin to die.
AFTER: Depending on how long blood
flow was suspended, the parts of the
body controlled by the areas of the
brain where oxygen was deprived may
be disabled. Function may return with
time and rehabilitation.
WHAT'S HAPPENING:

HEMORRHAGIC
STROKE

BEFORE: A section of blood vessel in
the brain becomes weak or balloons out
(aneurysm) because of age, high blood
pressure or congenital defect.
DURING: The weakened section of
blood vessel bursts and blood leaks into
the brain, causing swelling and pressure,
which leads to cell and tissue death.
AFTER: Depending on how long the
pressure persisted, the parts of the
body controlled by the areas of the brain
where cell and tissue death occurred
may be disabled. Function may return
with time and rehabilitation.

STROKE
SYMPTOMS
SUDDEN
NUMBNESS OR
WEAKNESS

in the face, arm or leg, especially
on one side of the body.

Sudden

CONFUSION
or difficulty speaking
or understanding.

SUDDEN
DIFFICULTY
SEEING IN ONE
OR BOTH EYES.
SUDDEN
DIFFICULTY
WALKING
OR DIZZINESS,
loss of balance or lack
of coordination.

DOWNLOAD

Free Caregiving Guide
The National Stroke Association put together a helpful resource for
caregivers called the "Careliving Guide." Go to stroke.org and search
"careliving guide."

Sudden

SEVERE
HEADACHE
with no
known cause.

WINTE R 2016

45



http://www.stroke.org

Table of Contents for the Digital Edition of Vim & Vigor - Winter 2016 - Community Healthcare

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