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.

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