Related Experiment Video
Updated: May 3, 2026
08:35
Improved Renal Denervation Mitigated Hypertension Induced by Angiotensin II Infusion
Published on: May 26, 2022
3.6K
Percutaneous renal denervation and the second generation EnligHTN System.
R G Chokka1, S Delacroix, P J Psaltis
1South Australian Health and Medical Research Institute Adelaide, SA, Australia - stephen.worthley@adelaide.edu.au.
Minerva Cardioangiologica
|February 7, 2014
Summary
Renal denervation, a procedure to reduce kidney sympathetic nerve activity, effectively lowers blood pressure in patients with resistant hypertension. Newer multi-electrode catheters like EnligHTN offer improved lesion placement for better outcomes.
Area of Science:
- Nephrology
- Cardiovascular Medicine
- Interventional Cardiology
Background:
- Hypertension is a significant public health issue, often requiring innovative treatments beyond medication.
- Increased renal sympathetic nerve activity is a key factor in drug-resistant hypertension.
- Renal denervation offers a potential interventional approach to manage resistant hypertension by reducing sympathetic drive.
Purpose of the Study:
- To review the rationale behind renal artery denervation.
- To discuss existing data and early technologies in renal denervation.
- To focus on the characteristics and utility of the EnligHTN multi-electrode renal denervation catheter.
Main Methods:
- Review of existing clinical trial data (Symplicity and EnligHTN trials).
- Analysis of first and second-generation renal denervation catheter technologies.
- Focus on the design and function of the EnligHTN multi-electrode catheter.
Main Results:
- First and second-generation renal denervation catheters have demonstrated significant blood pressure reduction.
- The EnligHTN catheter, a multi-electrode device, allows for pre-specified thermal injury patterns.
- This design theoretically improves lesion positioning compared to earlier single-electrode systems.
Conclusions:
- Renal denervation is a viable option for carefully selected patients with resistant hypertension.
- Advancements in catheter technology, such as the EnligHTN device, aim to optimize treatment efficacy.
- Further evaluation of multi-electrode systems like EnligHTN is warranted for resistant hypertension management.
Related Concept Videos
01:25Antihypertensive Drugs: Direct Renin Inhibitors
1.9K
The renin-angiotensin-aldosterone system (RAAS) is an intricate physiological pathway involving numerous enzymes and hormones, including renin, angiotensin-converting enzyme (ACE), angiotensin I and II, and aldosterone. Imbalances within this system increase the production of angiotensin II and aldosterone. Increased angiotensin II levels promote vasoconstriction and blood pressure elevation. Concurrently, higher aldosterone levels stimulate sodium and water reabsorption in the kidneys,...
1.9K
01:25Urinary Tract Calculi VI: Surgical Management
1.0K
Procedures for Kidney StonesMedical intervention is necessary when kidney stones or renal calculi are too large to pass spontaneously (typically greater than 5 millimeters) when stones are accompanied by symptomatic infection (such as fever or pyelonephritis), when they impair kidney function, or when they cause persistent symptoms like severe pain, nausea, or urinary retention. Additionally, patients with only one kidney or those who cannot be treated with medical management also require...
1.0K
01:26Extracorporeal Removal of Drugs: Continuous Renal Replacement Therapy
414
Continuous Renal Replacement Therapy (CRRT) is an essential intervention for patients experiencing severe kidney dysfunction. This therapy offers a continuous mechanism for removing fluids and toxins from the bloodstream, leveraging the patient’s blood pressure to facilitate filtration through a specialized filter. This method contrasts with intermittent dialysis, providing a gentler and more consistent removal of waste products and excess fluid, which is particularly beneficial in...
414
01:26Kidney Transplant II: Surgical Procedure
926
Preoperative ManagementThe primary goals of preoperative management in kidney transplantation are to optimize the patient’s metabolic state and prepare them for surgery through diet adjustments, necessary dialysis, and tailored medical treatment. This phase also involves comprehensive infection screening and patient education about the surgical procedure and postoperative care to improve outcomes and adherence.Medical ManagementA comprehensive evaluation is required for both the living...
926
01:30Extracorporeal Removal of Drugs: Peritoneal Dialysis and Hemodialysis
1.1K
Patients with end-stage renal disease (ESRD) or those experiencing drug overdose often require extracorporeal methods to eliminate accumulated drugs and metabolites. Hemoperfusion, hemofiltration, and dialysis are the primary techniques to rapidly remove harmful substances without disrupting the patient's fluid and electrolyte balance. For those with compromised renal function, dosage adjustments of concurrent medications may be necessary during extracorporeal drug removal.Dialysis is a process...
1.1K
01:26Heart Failure Drugs: Inhibitors of Renin-Angiotensin System
1.9K
The activation of the sympathetic nervous system and the renin-angiotensin-aldosterone system (RAAS) contributes to cardiac remodeling, and inhibiting the RAAS is a pharmacological target in heart failure management. As a result, neurohumoral modulation is a crucial treatment principle for managing heart failure. This approach involves using medications like ACE inhibitors (ACEIs), angiotensin receptor blockers (ARBs), β-blockers, mineralocorticoid receptor antagonists (MRAs), and neutral...
1.9K