"A short blast of radio waves to the kidneys can help control high blood pressure in patients who do not respond to medication, a study shows. The pioneering work, described in The Lancet medical journal, selectively severs nerves to the kidney that play a key role in regulating blood pressure. Although still in the testing phase, experts say the procedure could one day help hundreds of thousands of patients. Half of patients fail to achieve good blood pressure control with drugs. This is partly because it can be difficult to remember to take medication every day. But for up to a fifth of patients it is because the drugs simply have no effect. High blood pressure is an exceedingly common condition, affecting around one in three adults in England. Experts believe the new procedure could help many of these better control their condition, thereby lowering their risk of future strokes and heart attacks"
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