Kidney nerve zapping may replace daily pills for high blood pressure

This study tests a procedure called renal denervation, which uses energy to calm overactive nerves in the kidneys, to see if it can safely lower diastolic blood pressure (the bottom number) in people with isolated diastolic hypertension. About 124 adults who have never taken blood pressure medication will be randomly assigned to receive the real procedure or a sham (fake) procedure. The main goal is to check if the real procedure reduces average 24-hour diastolic blood pressure after 6 months.