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Now, a
therapy to permanently cure high blood pressure
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London: Scientists have
developed a radical therapy that could provide a permanent cure for high blood
pressure by zapping the kidneys with radio waves.
The breakthrough by researchers from Baker IDI
Heart and Diabetes Institute of Melbourne, Australia could bring hope to
thousands of patients who do not respond to drugs.
The procedure known as renal denervation may be
available on UK’s National Health Service as early as next year after trials
showed it produced dramatic improvements in the condition, the Daily Mail
reported.
High blood pressure is a risk factor in heart
disease, stroke, and kidney failure.
Changes in lifestyle, such as cutting back on
salt and alcohol and exercising, can control blood pressure and there are a
number of drug treatments available.
Many who are on medication, as many as five
different types, still have difficulty with it. It is this group who can be
helped.
The technique uses a burst of radio frequency
energy delivered through a catheter to knock out a number of tiny nerves that
run in the lining of the arteries of the kidney.
A high blood pressure reading is one that
exceeds 140/90 millimetres of mercury.
The latest trial involved more than 100 patients
who had blood pressure readings of at least 178/97, despite taking three or more
different drugs.
After 18 months, those having the procedure
maintained a reduction of between 28/11 to 32/12.
“We are encouraged to see renal denervation
shows substantial and sustained reduction in treatment-resistant patients,” Dr
Murray Esler from the institute was quoted as saying by the paper.
Although blood pressure does not sink to normal
levels after treatment, it cuts the health risks of very high pressure.
The findings were presented at the European
Cardiology Congress in Munich.
( Courtesy: PTI,
http://www.firstpost.com/ )
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