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Subject:
From:
Meir Weiss <[log in to unmask]>
Reply To:
Cerebral Palsy List <[log in to unmask]>
Date:
Fri, 18 Jun 2010 07:33:02 -0400
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http://www.nationalpost.com/todays-paper/Canadian+study+finds+leading+causes
+stroke/3169133/story.html
 
Canadian-led study finds leading causes of stroke
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Sharon Kirkey, Canwest News Service . Friday, Jun. 18, 2010

High blood pressure is the single biggest driver of stroke risk and
potentially lethal damage to the brain, according to a major Canadian-led
global study that shows 10 risk factors account for 90% of the risk for
stroke worldwide.

Five of them -- blood pressure, smoking, diet, abdominal obesity and lack of
regular exercise -- were singled out for their magnitude of risk.

The study involved 6,000 people in 22 countries. It is the first major
global report of stroke risk factors across different ethnic groups, and in
different countries.

The risk factors aren't new. What is new is that the study attempts to show
just how much they contribute to the overall burden of stroke -- in rich
countries and in poor ones.

High blood pressure was the strongest predictor for all strokes, nearly
tripling the risk.

"It turns out that the brain is more sensitive to blood pressure than the
heart is," says Dr. Antoine Hakim, CEO and scientific director of the
Ottawa-based Canadian Stroke Network, one of the study's funding sources.

"You don't get heart attacks as easily if your blood pressure is high, but
you sure get strokes," he said.

"The message is powerful. We really, really owe it to ourselves in this era
of unsustainable health-care expenditures to do a better job with
prevention."

Stroke is not only devastating to the individual, Dr. Hakim said, "the
entire family is sucked down into the vortex of care providing."

"Fifty per cent of caregivers, within one year of suddenly inheriting a
person with stroke in their family, become depressed. This is a disease that
transmits itself across families -- not like a bacteria or infection, but it
creates a wave of sadness and unhappiness."

Stroke is the third-leading killer of Canadians. In 2011, the Baby Boom
generation will enter the age group when the risk of stroke begins to
increase dramatically, a demographic phenomenon experts warn will strain
health-care services and families left to take on major roles caring for
stroke survivors.

Stroke risk begins to increase at age 55, and doubles every 10 years.

Nearly 4.6 million adult Canadians -- roughly one in five -- have
hypertension, with hundreds of thousands of people unaware of their
condition, Statistics Canada reported in February.

The new stroke study, to be published in an upcoming issue of the journal
The Lancet, was based on 3,000 cases of people with a first stroke, and
3,000 "controls" -- people who had no history of stroke who were matched
with cases by age and sex. Participating countries included Canada,
Australia, Brazil, India, Iran, South Africa, Sudan and Uganda.

Researchers led by Dr. Martin O'Donnell and Dr. Salim Yusuf of McMaster
University in Hamilton, looked at the risk factors for ischemic stroke --
strokes caused by a blood clot in a vessel in the brain --and hemorrhagic
stroke, or bleeding within the brain.
.

Read more:
http://www.nationalpost.com/todays-paper/Canadian+study+finds+leading+causes
+stroke/3169133/story.html#ixzz0rCfreQaa 
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