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Renal sympathetic hyperactivity is a contributor to hypertension, and renal denervation (RDN) by percutaneous ablation was for a time considered a very promising novel treatment approach. Early, nonrandomized studies showed dramatic reductions of blood pressure with RDN in patients with resistant hypertension, but later studies with sham controls did not confirm the initial results (NEJM JW Gen Med May 1 2014 and N Engl J Med 2014; 370:1393).
Now, investigators have performed a manufacturer-funded, proof-of-concept, sham-controlled, multicenter, randomized study in 80 patients with mild-to-moderate hypertension who were not on blood pressure medication (ClinicalTrials.gov NCT02439749). At 3 months, ambulatory systolic blood pressure had drop…