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Updated: Jun 28, 2025

Improved Renal Denervation Mitigated Hypertension Induced by Angiotensin II Infusion
Published on: May 26, 2022
Renal denervation for uncontrolled hypertension: a systematic review and meta-analysis examining multiple subgroups
Andrew S P Sharp1, Alice Sanderson2, Neil Hansell2
1University Hospital of Wales and Cardiff University.
Abstract:
This systematic review and meta-analysis was conducted to assess the randomized controlled trial (RCT) evidence available for renal denervation (RDN) in uncontrolled arterial hypertension. Twenty-five RCTs met the eligibility criteria for the systematic review, and 16 RCTs were included in the meta-analysis. The results of the random effects meta-analysis estimated a mean difference of -8.5 mmHg [95% confidence interval (CI) -13.5 to -3.6] for office SBP, -3.6 mmHg (95% CI -5.2 to -2.0) for 24 h SBP and -3.9 mmHg (95% CI -5.6 to -2.2) for ambulatory daytime SBP in favour of RDN compared with control (medication and/or sham-only) at primary follow-up. Similarly favourable results were observed across a range of prespecified subgroup analyses, including treatment-resistant hypertension. This meta-analysis suggests that the use of RDN in uncontrolled hypertension leads to consistent reductions in blood pressure. Reductions appear to be statistically consistent in the presence or absence of medications and in populations resistant to the use of three medications.
Insights
Renal denervation (RDN) effectively lowers blood pressure in patients with uncontrolled hypertension. This procedure shows consistent results, even in those with treatment-resistant hypertension.
Area of Science:
- Cardiology
- Nephrology
- Interventional Cardiology
Background:
- Uncontrolled arterial hypertension remains a significant global health concern.
- Randomized controlled trials (RCTs) provide crucial evidence for treatment efficacy.
- Renal denervation (RDN) is an emerging interventional therapy for hypertension.
Approach:
- A systematic review and meta-analysis of RCTs was performed.
- Twenty-five RCTs were included in the systematic review.
- Sixteen RCTs were synthesized in the meta-analysis to assess RDN's impact on blood pressure.
Key Points:
- RDN demonstrated a significant reduction in office systolic blood pressure (SBP) by -8.5 mmHg.
- Ambulatory blood pressure also showed marked decreases: 24-hour SBP by -3.6 mmHg and daytime SBP by -3.9 mmHg.
- Consistent blood pressure reductions were observed across subgroups, including those with treatment-resistant hypertension.
Conclusions:
- This meta-analysis supports RDN as an effective treatment for uncontrolled hypertension.
- RDN achieves statistically consistent blood pressure reductions, irrespective of concomitant medications.
- The findings highlight RDN's potential in managing medication-resistant hypertension.
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