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Updated: Jun 18, 2025

Improved Renal Denervation Mitigated Hypertension Induced by Angiotensin II Infusion
Published on: May 26, 2022
Renal Denervation for the Treatment of Hypertension: A Scientific Statement From the American Heart Association
Insights
Renal denervation, a new procedure ablating renal sympathetic nerves, offers a novel treatment for uncontrolled high blood pressure. While showing modest efficacy and a favorable safety profile, further research is needed to optimize patient selection for this hypertension therapy.
Area of Science:
- Cardiovascular Medicine
- Interventional Cardiology
- Nephrology
Background:
- Hypertension is a major global risk factor for cardiovascular disease, with worsening blood pressure control rates.
- Current pharmacological and lifestyle interventions are insufficient for many patients, with only 23% achieving treatment goals in the US.
- The US FDA approved renal denervation in 2023 as an adjunctive therapy for inadequately controlled hypertension.
Purpose of the Study:
- To evaluate the efficacy and safety of renal denervation as an adjunctive treatment for hypertension.
- To assess the role of renal sympathetic nerve ablation in managing patients with uncontrolled blood pressure.
- To review the evidence supporting the recent FDA approval of renal denervation.
Main Methods:
- Analysis of multiple randomized clinical studies with rigorous designs, using renal angiogram as the sham control.
- Evaluation of new-generation trials demonstrating the efficacy of renal denervation in lowering blood pressure.
- Assessment of the initial safety profile and ongoing studies for longer-term outcomes.
Main Results:
- Most new-generation trials met their primary endpoint, showing modest blood pressure reduction with renal denervation.
- Efficacy was observed across a spectrum of hypertension, from mild to resistant cases.
- The initial safety profile of renal denervation appears favorable.
Conclusions:
- Renal denervation represents a novel treatment strategy for patients with uncontrolled hypertension.
- Individual patient responses vary, necessitating further research to identify optimal candidates.
- Multidisciplinary teams and shared decision-making are crucial for appropriate patient selection and management.
Abstract:
Hypertension is a leading risk factor for cardiovascular morbidity and mortality. Despite the widespread availability of both pharmacological and lifestyle therapeutic options, blood pressure control rates across the globe are worsening. In fact, only 23% of individuals with high blood pressure in the United States achieve treatment goals. In 2023, the US Food and Drug Administration approved renal denervation, a catheter-based procedure that ablates the renal sympathetic nerves, as an adjunctive treatment for patients in whom lifestyle modifications and antihypertensive medications do not adequately control blood pressure. This approval followed the publication of multiple randomized clinical studies using rigorous trial designs, all incorporating renal angiogram as the sham control. Most but not all of the new generation of trials reached their primary end point, demonstrating modest efficacy of renal denervation in lowering blood pressure across a spectrum of hypertension, from mild to truly resistant. Individual patient responses vary, and further research is needed to identify those who may benefit most. The initial safety profile appears favorable, and multiple ongoing studies are assessing longer-term efficacy and safety. Multidisciplinary teams that include hypertension specialists and adequately trained proceduralists are crucial to ensure that referrals are made appropriately with full consideration of the potential risks and benefits. Incorporating patient preferences and engaging in shared decision-making conversations will help patients make the best decisions given their individual circumstances. Although further research is clearly needed, renal denervation presents a novel treatment strategy for patients with uncontrolled blood pressure.
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