'Revolutionary' blood pressure treatment unveiled

A new technique that lowers blood pressure by zapping the kidneys with a radio beam could "revolutionise" treatment, it was claimed today.

The therapy produced a dramatic improvement in patients who had been unable to control their high blood pressure with several different drugs.



Scientists believe it could lead to a completely new approach to managing high blood pressure, or hypertension, a significant risk factor for heart attacks and strokes.



The treatment involves a catheter device that delivers a burst of high-energy radio waves to deactivate renal nerves which play a role in raising blood pressure.



Trial patients who received the therapy saw their blood pressure fall by an average 32 over 12 millimetres of mercury (mm Hg) over a period of six months.



The first figure is the systolic pressure which coincides with each heart beat. The second is the diastolic "resting" pressure between beats.



At the start of the international trial the patients had a blood pressure reading of 178 over 97 on average. A second "control" group given a "dummy" version of the treatment had the same blood pressure levels, which did not change significantly during the trial.



Study leader Professor Murray Esler, from the Baker IDI Heart and Diabetes Institute of Melbourne, Australia, said: "The impressive results show that this approach has the potential to become a truly revolutionary treatment."



Colleague Professor Alan Jardine, from the University of Glasgow, said: "This really is an incredibly promising study and the results really are groundbreaking. It's the most exciting development in this field for many years."



A total of 106 patients took part in the Symplicity HTN-2 trial, reported today in an online edition of The Lancet medical journal.



Both treated and control patients were taking on average five different anti-hypertension medications.



The procedure involves inserting the device through a blood vessel in the upper thigh and feeding it up to the kidneys,

Life and Style
ebookNow available in paperback
Latest stories from i100
Have you tried new the Independent Digital Edition apps?

ES Rentals

    Independent Dating
    and  

    By clicking 'Search' you
    are agreeing to our
    Terms of Use.

    iJobs Job Widget
    iJobs General

    SThree: Trainee Recruitment Consultant

    £20000 - £25000 per annum + uncapped commission, Benefits, OTE £100k: SThree: ...

    Guru Careers: Dining Room Head Chef

    £32K: Guru Careers: We are seeking a Dining Room Head Chef to work for one of ...

    Guru Careers: Pastry Sous Chef / Experienced Pastry Chef

    £27K: Guru Careers: We are seeking a Pastry Sous Chef / Experienced Pastry Che...

    SThree: Trainee Recruitment Consultant

    £20000 - £25000 per annum + competitive: SThree: Are you a recent graduate loo...

    Day In a Page

    Abuse - and the hell that came afterwards

    Abuse - and the hell that follows

    James Rhodes on the extraordinary legal battle to publish his memoir
    Why we need a 'tranquility map' of England, according to campaigners

    It's oh so quiet!

    The case for a 'tranquility map' of England
    'Timeless fashion': It may be a paradox, but the industry loves it

    'Timeless fashion'

    It may be a paradox, but the industry loves it
    If the West needs a bridge to the 'moderates' inside Isis, maybe we could have done with Osama bin Laden staying alive after all

    Could have done with Osama bin Laden staying alive?

    Robert Fisk on the Fountainheads of World Evil in 2011 - and 2015
    New exhibition celebrates the evolution of swimwear

    Evolution of swimwear

    From bathing dresses in the twenties to modern bikinis
    Sun, sex and an anthropological study: One British academic's summer of hell in Magaluf

    Sun, sex and an anthropological study

    One academic’s summer of hell in Magaluf
    From Shakespeare to Rising Damp... to Vicious

    Frances de la Tour's 50-year triumph

    'Rising Damp' brought De la Tour such recognition that she could be forgiven if she'd never been able to move on. But at 70, she continues to flourish - and to beguile
    'That Whitsun, I was late getting away...'

    Ian McMillan on the Whitsun Weddings

    This weekend is Whitsun, and while the festival may no longer resonate, Larkin's best-loved poem, lives on - along with the train journey at the heart of it
    Kathryn Williams explores the works and influences of Sylvia Plath in a new light

    Songs from the bell jar

    Kathryn Williams explores the works and influences of Sylvia Plath
    How one man's day in high heels showed him that Cannes must change its 'no flats' policy

    One man's day in high heels

    ...showed him that Cannes must change its 'flats' policy
    Is a quiet crusade to reform executive pay bearing fruit?

    Is a quiet crusade to reform executive pay bearing fruit?

    Dominic Rossi of Fidelity says his pressure on business to control rewards is working. But why aren’t other fund managers helping?
    The King David Hotel gives precious work to Palestinians - unless peace talks are on

    King David Hotel: Palestinians not included

    The King David is special to Jerusalem. Nick Kochan checked in and discovered it has some special arrangements, too
    More people moving from Australia to New Zealand than in the other direction for first time in 24 years

    End of the Aussie brain drain

    More people moving from Australia to New Zealand than in the other direction for first time in 24 years
    Meditation is touted as a cure for mental instability but can it actually be bad for you?

    Can meditation be bad for you?

    Researching a mass murder, Dr Miguel Farias discovered that, far from bringing inner peace, meditation can leave devotees in pieces
    Eurovision 2015: Australians will be cheering on their first-ever entrant this Saturday

    Australia's first-ever Eurovision entrant

    Australia, a nation of kitsch-worshippers, has always loved the Eurovision Song Contest. Maggie Alderson says it'll fit in fine