scholarly journals Sustained Reduction of Blood Pressure With Baroreceptor Activation Therapy

Hypertension ◽  
2017 ◽  
Vol 69 (5) ◽  
pp. 836-843 ◽  
Author(s):  
Peter W. de Leeuw ◽  
John D. Bisognano ◽  
George L. Bakris ◽  
Mitra K. Nadim ◽  
Hermann Haller ◽  
...  
2017 ◽  
Vol 35 ◽  
pp. e63
Author(s):  
P.W. De Leeuw ◽  
J. Bisognano ◽  
G. Bakris ◽  
M. Nadim ◽  
H. Haller ◽  
...  

Hypertension ◽  
2020 ◽  
Vol 75 (3) ◽  
pp. 885-892 ◽  
Author(s):  
Takeshi Tohyama ◽  
Kazuya Hosokawa ◽  
Keita Saku ◽  
Yasuhiro Oga ◽  
Hiroyuki Tsutsui ◽  
...  

Increased blood pressure (BP) variability (BPV) is an independent risk factor of cardiovascular events among hypertensive patients. The arterial baroreceptor reflex is a powerful regulator of BP and attenuates BPV via a sympathetic negative feedback control. Conventional baroreceptor activation therapy (cBAT) electrically stimulates the carotid baroreceptors with constant stimulation parameters. While cBAT lowers BP, it does not mount a pressure feedback mechanism. We hypothesized that baroreceptor activation therapy with a pressure feedback system (smart BAT [sBAT]) is able to reduce BPV as well as lower BP. We developed sBAT that electrically stimulated baroreceptors at a frequency proportional to the difference between instantaneous BP and a preset reference pressure, and compared its performance with cBAT. In 14-week-old spontaneously hypertensive rats (n=6), we implanted BP telemeter and created impaired arterial baroreceptors by modified sino-aortic denervation. One week after surgical preparation, we administered sBAT, cBAT or no stimulation (sham) for 15 minutes and compared BP and BPV under freely moving condition. Both cBAT and sBAT significantly lowered mean BP (sham, 141.3±12.8; cBAT, 114.3±11.4; and sBAT, 112.0±7.3 mm Hg). Conventional BAT did not affect BPV at all, while sBAT significantly reduced BPV (sham, 15.4±2.6; cBAT, 16.0±5.2; and sBAT, 9.7±3.3 mm Hg). sBAT also prevented transient excessive BP rise and fall. In conclusion, sBAT was capable of reducing BP and attenuating BPV in hypertensive rats with impaired baroreceptor. sBAT is a novel treatment option for hypertensive patients with increased BPV.


2016 ◽  
Vol 11 (1) ◽  
pp. 65
Author(s):  
Lisa Brandon ◽  
◽  
◽  
Faisal Sharif

Resistant hypertension remains a clinical challenge with few management options beyond maximisation of medications. Catheterbased renal artery denervation (RDN) was proposed in 2009 as a possible therapy for resistant hypertension and early feasibility trials caused excitement among cardiologists and antihypertensive specialists, showing remarkable and sustained blood pressure reductions. In 2014, enthusiasm for RDN dampened following the SYMPLICITY 3 trial results, which showed no statistically significant difference in blood pressure between the intervention and control arms. However, hope remains for the improved management of resistant hypertension; procedural understanding, technological advancements and alternative targets – such as baroreceptor activation therapy and arteriovenous shunts – may aid the identification of those patients for whom specific interventional therapies will be effective.


F1000Research ◽  
2020 ◽  
Vol 9 ◽  
pp. 169 ◽  
Author(s):  
Michael Doumas ◽  
Konstantinos P Imprialos ◽  
Manolis S Kallistratos ◽  
Athanasios J Manolis

The management of resistant hypertension presents several challenges in everyday clinical practice. During the past few years, several studies have been performed to identify efficient and safe pharmacological and non-pharmacological options for the management of such patients. The Spironolactone versus placebo, bisoprolol, and doxazosin to determine the optimal treatment for drug-resistant hypertension (PATHWAY-2) trial demonstrated significant benefits with the use of spinorolactone as a fourth-line drug for the treatment of resistant hypertension over doxazosin and bisoprolol. In addition, recent data support that spironolactone may demonstrate superiority over central acting drugs in such patients, as well. Based on the European guidelines, spironolactone is recommended as the fourth-line drug option, followed by amiloride, other diuretics, doxazosin, bisoprolol or clonidine.  Among several device-based approaches, renal sympathetic denervation had fallen into hibernation after the disappointing results of the Renal Denervation in Patients With Uncontrolled Hypertension (SYMPLICITY HTN) 3 trial. However, the technique re-emerged at the epicenter of the clinical and research interest after the favorable results of three sham-controlled studies, which facilitated novel catheters and techniques to perform the denervation. Significant results of iliac anastomosis on blood pressure levels have also been demonstrated. Nevertheless, the technique-related adverse events resulted in withdrawal of this interventional approach. Last, the sympatholytic properties of the carotid baroreceptor activation therapy were associated with significant blood pressure reductions in patients with resistant hypertension, which need to be verified in larger controlled trials. Currently device-based approaches are recommended only in the setting of clinical trials until more safety and efficacy data become available.


2021 ◽  
Vol 16 ◽  
Author(s):  
Moisés Rodríguez-Mañero ◽  
Jose Luis Martínez-Sande ◽  
Javier García-Seara ◽  
Teba González-Ferrero ◽  
José Ramón González-Juanatey ◽  
...  

In this review, the authors describe evolving alternative strategies for the management of AF, focusing on non-invasive and percutaneous autonomic modulation. This modulation can be achieved – among other approaches – via tragus stimulation, renal denervation, cardiac afferent denervation, alcohol injection in the vein of Marshall, baroreceptor activation therapy and endocardial ganglionated plexi ablation. Although promising, these therapies are currently under investigation but could play a role in the treatment of AF in combination with conventional pulmonary vein isolation in the near future.


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