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Updated: Apr 7, 2026

Improved Renal Denervation Mitigated Hypertension Induced by Angiotensin II Infusion
Published on: May 26, 2022
Renal Denervation for Resistant Hypertension: Past, Present, and Future.
Christian Ott1, Roland E Schmieder
1Department of Nephrology and Hypertension, Friedrich-Alexander University (FAU) Erlangen-Nürnberg, Ulmenweg 18, 91054, Erlangen, Germany, christian.ott@uk-erlangen.de.
Renal denervation (RDN) shows promise for resistant hypertension, but early trials faced challenges. New research is exploring improved techniques and patient selection for better blood pressure control.
Area of Science:
- Cardiovascular medicine
- Interventional cardiology
- Hypertension management
Background:
- Renal sympathetic nerve activity plays a role in hypertension.
- Early studies suggested significant blood pressure reduction with renal denervation (RDN).
- The Symplicity HTN-3 trial reported no significant effect, raising concerns about RDN's efficacy.
Purpose of the Study:
- To re-evaluate the role of RDN in resistant hypertension.
- To address methodological issues from previous trials.
- To identify patient subgroups who may benefit most from RDN.
Main Methods:
- Focus on new randomized prospective clinical trials.
- Involves refined interventional approaches.
- Emphasizes improved patient selection criteria.
Main Results:
- Initial widespread adoption of RDN in Europe was based on promising but potentially flawed early data.
- The Symplicity HTN-3 trial highlighted significant methodological limitations.
- A resurgence of interest and new trials are underway in 2015.
Conclusions:
- Methodological issues and poor execution likely impacted prior RDN trial results.
- RDN may still hold potential as a rescue therapy for treatment-resistant hypertension.
- Future research will focus on optimized techniques and patient selection for RDN.
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