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Posted on Sun, Sep. 02, 2007
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Parkinson's surgery slows disease's effects
Associated Press
LAWRENCE - A flip through Linda Davis' checkbook gives a glimpse of her
recent ups and downs with Parkinson's disease.
Starting in May, Davis underwent a series of four surgeries -- two of them
in her brain -- in hopes of delaying the progression of Parkinson's.
Judging from the handwriting in her checkbook -- which has transformed in
the past three months from a messy scrawl to a neat cursive -- the surgery
worked.
Though the handwriting is not quite as clear as it was 11 years ago before
Davis was diagnosed with Parkinson's -- a disease that affects a person's
control of movement -- it's at least legible.
Davis, 59, now is also able to spend nights alone and can resume painting,
one of her favorite crafts.
"She's got her life back," her sister Pat Michaelis said.
The surgical procedures, known as deep brain stimulation, implanted
electrodes into Davis' brain that emit electrical pulses to interfere with
abnormal neural activity. The device, similar to a pacemaker, runs off
battery packs that were placed in Davis' chest.
The procedure received Food and Drug Administration approval in 2002 as a
treatment for Parkinson's. The brain surgery also can be used to treat
people with other diseases that cause uncontrolled movements, such as
tremors.
For the past few years, as her Parkinson's disease worsened, Davis teetered
between being unable to stop moving when her medicine was working and not
being able to move at all when the medicine wore off.
The surgery offers the hope of reducing the amount of medicine Davis needs.
Davis was diagnosed in 1996 after she and her husband, Bob, had returned
from a trip to New York to celebrate their 25th wedding anniversary.
She was tired, had a tremor in her left hand and didn't swing both her arms
as she walked. She went to a local neurologist, who told her within 10
minutes the problem was Parkinson's.
Parkinson's is a disorder of the brain's nervous system and progressively
intensifies, resulting in tremors, rigidity in some muscles and difficulty
with walking, movement and coordination. The disease is caused by the death
of nerve cells in a part of the brain that controls movement.
Parkinson's disease does not have a cure, but medicines can treat the
symptoms. However, those medicines have severe side effects.
For Davis -- as her Parkinson's has advanced over 11 years -- more and more
medicine was needed.
And with the increased dosage came dyskinesias, meaning Davis was unable to
sit still.
"It was really extreme," Michaelis said. "In my mind, I equated it almost to
a fish out of water, flopping around. She couldn't control movements."
Also, there was an increase in the times when -- suddenly -- the medicine
would stop working. In an instant, Davis would be unable to move.
The disease and the medication also made it difficult to do household
chores, such as cooking dinner, and enjoy some of her favorite crafts.
"Daily life got to be a struggle," Michaelis said.
Dr. Jules Nazzaro, the neurosurgeon at Kansas University Medical Center who
performed Davis' surgery, said deep brain stimulation won't cure Davis'
Parkinson's disease. But it will set it back at least five years.
"In all honesty, people don't know the mechanism for why this works," he
said.
Deep brain stimulation surgery comes with risks -- bleeding in the brain,
infection, stroke and even death. Also, patients could see an onset or
worsening of existing depression.
But once Davis decided to have the surgery, she didn't worry about the
risks. "My off-time increased enough that I decided to go ahead and do it,"
she said.
So far, Davis has reduced the medicine she uses by 70 percent. She can
remain still, and the wigglelike movements have nearly disappeared. They
come back when she is stressed, tired or excited but aren't as extreme as
before.
And since the surgery, she hasn't once had a moment where the medicine
unexpectedly stopped working and she couldn't move.
Quoting from a long list of "turtle wisdom" she has collected over the
years, Davis said she has learned how to be "comfortable in your own shell,"
especially while her hair is still growing out from surgery.
She couples that with "you only make progress if you stick out your neck."

Rayilyn Brown
Board Member AZNPF
Arizona Chapter National Parkinson's Foundation
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