The role of renal nerve stimulation in percutaneous renal denervation for hypertension: A mini-review

Huang, Hui Chun and Cheng, Hao Min and Chia, Yook Chin * and Li, Yan and Minh, Huynh Van and Siddique, Saulat and Sukonthasarn, Apichard and Tay, Jam Chin and Turana, Yuda and Verma, Narsingh and Kario, Kazuomi and Wang, Tzung-Dau (2022) The role of renal nerve stimulation in percutaneous renal denervation for hypertension: A mini-review. The Journal of Clinical Hypertension, 24 (9). pp. 1187-1193. ISSN 0748-450X

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Official URL: https://doi.org/10.1111/jch.14554

Abstract

Recent trials have demonstrated the efficacy and safety of percutaneous renal sympathetic denervation (RDN) for blood pressure (BP)-lowering in patients with uncontrolled hypertension. Nevertheless, major challenges exist, such as the wide variation of BP-lowering responses following RDN (from strong response to no response) and lack of feasible and reproducible peri-procedural predictors for patient response. Both animal and human studies have demonstrated different patterns of BP responses following renal nerve stimulation (RNS), possibly related to varied regional proportions of sympathetic and parasympathetic nerve tissues along the renal arteries. Animal studies of RNS have shown that rapid electrical stimulation of the renal arteries caused renal artery vasoconstriction and increased norepinephrine secretion with a concomitant increase in BP, and the responses were attenuated after RDN. Moreover, selective RDN at sites with strong RNS-induced BP increases led to a more efficient BP-lowering effect. In human, when RNS was performed before and after RDN, blunted changes in RNS-induced BP responses were noted after RDN. The systolic BP response induced by RNS before RDN and blunted systolic BP response to RNS after RDN, at the site with maximal RNS-induced systolic BP response before RDN, both correlated with the 24-h ambulatory BP reductions 3-12 months following RDN. In summary, RNS-induced BP changes, before and after RDN, could be used to assess the immediate effect of RDN and predict BP reductions months following RDN. More comprehensive, large-scale and long term trials are needed to verify these findings.

Item Type: Article
Uncontrolled Keywords: hypertension; percutaneous renal sympathetic denervation; renal nerve stimulation.
Subjects: Q Science > QM Human anatomy
Q Science > QP Physiology
R Medicine > RC Internal medicine
Divisions: Others > Non Sunway Academics
Sunway University > School of Medical and Life Sciences [formerly School of Healthcare and Medical Sciences until 2020] > Department of Medical Sciences
Depositing User: Ms Yong Yee Chan
Related URLs:
Date Deposited: 13 Aug 2024 00:18
Last Modified: 13 Aug 2024 00:18
URI: http://eprints.sunway.edu.my/id/eprint/3093

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