by Dr Jayashree on May 18, 2021 at 12:05 AM Blood pressure is controlled by many medications but in some people, they don't work as desired resulting in drug resistant hypertension and so they need additional therapeutic approaches to help patients get their blood pressure under control. To overcome this issue, recently a study led by researchers at Columbia University Vagelos College of Physicians and Surgeons and New York-Presbyterian published in journal The Lancet tests a clinical procedure called Renal denervation , that delivers two to three short blasts of ultrasound to nerve fibres that travel close to the renal artery. The participants of the study were adults with moderate to severe hypertension despite taking three or more antihypertensive drugs, among them 69 were treated with renal denervation and 67 had the sham procedure.