Radiofrequency renal denervation with mono-electrode and multi-electrode device for treatment in patient with uncontrolled hypertension: results of a 6-month follow-up

Abstract

Aim. To study the efficacy and safety of radiofrequency renal denervation with mono-electrode and multi-electrode devices in patients with uncontrolled arterial hypertension during а 6-month follow-up period. Materials and methods. The study included 52 patients with uncontrolled arterial hypertension, while receiving multicomponent antihypertensive therapy, including diuretic. Patients underwent radiofrequency renal denervation with a mono-electrode (group A; n=27) and multi-electrode devices (group B; n=25). The effectiveness of the procedure was study according to office blood pressure (BP) and ambulatory blood pressure monitoring (ABPM). Results. In group A and B, according to office BP after 6 months, there decreased in SBP/DBP by 32/14 and 30/10 mmHg (р=0.00001/р=0.00001 and p=0.00001/0.0004) respectively. According to ABPM, in group A there was a decrease in the average daily SBP and DBP by 7 and 4 mmHg (р=0.01 and р=0.03) respectively. According to ABPM, after 6 months in group B, there was a decrease in the average daily SBP and DBP by 12 and 6 mmHg (р=0.0003 and р=0.0007) respectively. Conclusions. The results confirm the safety and effectiveness of radiofrequency renal denervation. RDN of the distal branches of the renal arteries leads to a greater hypotensive effect.

Keywords

• hypertension
• renal denervation
• mono-electrode catheter
• multi-electrode catheter