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Updated: Mar 2, 2026

Improved Renal Denervation Mitigated Hypertension Induced by Angiotensin II Infusion
Published on: May 26, 2022
Resistant hypertension in 2017
1Department of Cardiovascular Diseases, The John Ochsner Heart and Vascular Institute, The Ochsner Clinical School, University of Queensland, Ochsner Medical Center, New Orleans, Louisiana, USA.
Insights
Resistant hypertension (HTN) affects many patients, with newer endovascular treatments like renal denervation showing promise. A combined approach of lifestyle changes, medication, and tailored procedures may offer new hope for managing this condition.
Area of Science:
- Cardiology and Nephrology
- Interventional Cardiology
- Hypertension Research
Background:
- Hypertension (HTN) is a widespread condition contributing significantly to morbidity and mortality.
- Resistant HTN, defined as blood pressure above 140/90 mmHg despite three medications, affects up to half of HTN patients in the U.S.
- The prevalence of HTN and resistant HTN is increasing, necessitating novel therapeutic strategies to improve patient compliance and reduce adverse events.
Purpose of the Study:
- To review recent advancements in endovascular therapies for resistant hypertension.
- To explore novel techniques such as renal denervation and endovascular carotid body stimulation.
- To discuss the role of revascularization in renovascular hypertension.
Main Methods:
- Review of recent studies on renal denervation technologies, including multipolar electrodes.
- Examination of early experiences with noninvasive renal denervation.
- Analysis of endovascular carotid body stimulation investigations.
- Assessment of revascularization outcomes for renovascular hypertension.
Main Results:
- Renal denervation technologies, from original trials to newer electrodes, are summarized.
- Early data on noninvasive renal denervation and endovascular carotid body stimulation are presented.
- Renovascular hypertension may be effectively treated by revascularization in select patients.
Conclusions:
- A comprehensive strategy involving lifestyle modification, pharmacologic therapy, and endovascular treatments is proposed for resistant HTN.
- Most endovascular treatments require further validation.
- Recent studies have cast doubt on the efficacy of renal revascularization for renovascular HTN when not precisely targeted.
Purpose Of Review:
Hypertension (HTN) is a ubiquitous condition and cause for significant morbidity and mortality. Over 400 000 deaths in the United States are related to HTN every year, more than all the Americans who died through all of World War II. As many as half the patients with HTN in the United States have resistant HTN, a blood pressure greater than 140/90 mmHg despite three medications including a diuretic. It appears that the prevalence of HTN and resistant HTN is increasing over time. There is a dire need for newer therapies that may reduce or eliminate the need for multiple pharmacologic agents, thus helping with compliance and reducing the possibility of their adverse events.
Recent Findings:
The current review summarizes the techniques and results reported in recent studies utilizing renal denervation technologies from the original Symplicity Trials to newer multipolar electrodes being used for optimal denervation. We also report the early experience with noninvasive renal denervation. Endovascular carotid body stimulation is also being investigated for resistant HTN. Renovascular HTN remains an underlying cause for resistant HTN, and revascularization may prove to be an effective treatment for many of these patients.
Summary:
A multipronged approach utilizing lifestyle modification, pharmacologic therapy and tailored endovascular treatments may be the algorithm to treat the growing cohort of resistant HTN. However, most of the endovascular treatments remain to be validated, and renal revascularization for renovascular HTN has been set back by recent studies that did not appear to target the real renovascular cohort.
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