Evaluation of Safety Mechanisms of Renal Radioablation(RSRA)for Uncontrolled Hypertension

Renal sympathetic radioablation disrupts the nerves by high radiofrequency signal which creates localized heat, eliminates the signal and decrease blood pressure. The main purpose of this study is to evaluate blood pressure 12 months after radioablation, and to evaluate the short and long-term effects of the renal radioablation on the extent of changes in urine catecholamines level, vascular stiffness, and sympathetic nerve activity as linked with the changes in blood pressure. The study will also evaluate the effect radioablation has on the renal arteries as well as develop teaching sessions for family physicians and other specialists to educate them on this new treatment.