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Implantation of Combined Telemetric ECG and Blood Pressure Transmitters to Determine Spontaneous Baroreflex Sensitivity in Conscious Mice
Published on: February 14, 2021
Baroreflex stimulation in the treatment of hypertension
John D Filippone1, John D Bisognano
1Cardiology Division, Department of Medicine, University of Rochester Medical Center, Rochester, New York 14642-8679, USA.
Insights
Electrical baroreflex stimulation offers a new treatment for resistant hypertension. This novel therapy safely lowers blood pressure by activating the baroreflex, potentially reducing cardiovascular risks.
Area of Science:
- Cardiology
- Nephrology
- Neurology
Background:
- Resistant hypertension poses significant cardiovascular risks despite medical therapy.
- Baroreceptors are crucial for long-term blood pressure regulation.
- The baroreflex attenuates hypertension by inhibiting renal sympathetic tone.
Purpose of the Study:
- To evaluate electrical stimulation of the carotid sinus as a novel treatment for hypertension.
- To assess the safety and efficacy of baroreflex activation in managing blood pressure.
Main Methods:
- Review of evidence on baroreceptor function and baroreflex mechanisms.
- Analysis of animal and human studies on electrical carotid sinus stimulation.
- Assessment of blood pressure reduction and sympathetic tone modulation.
Main Results:
- Electrical carotid sinus stimulation demonstrated safe and effective blood pressure lowering in studies.
- Evidence supports a significant role for baroreceptors in chronic hypertension management.
- The baroreflex appears to mitigate hypertension primarily through renal sympathetic inhibition.
Conclusions:
- Electrical baroreflex stimulation is a safe and effective adjunct therapy for resistant hypertension.
- Implantable carotid sinus stimulators show promise for treating hypertension.
- This approach may offer a valuable alternative or addition to conventional medical treatments.
Purpose Of Review:
It is not uncommon for hypertension to be resistant to the effects of medical therapy, and this poses a significant risk of adverse cardiovascular events. Electrical stimulation of the carotid sinus is a novel treatment for hypertension, and has been shown to reduce blood pressure by activating the baroreflex and reducing sympathetic tone.
Recent Findings:
Evidence suggests that the baroreceptors play a more important role in long-term blood pressure regulation than was once believed. It appears that the baroreflex attenuates chronic hypertension in large part by inhibiting renal sympathetic tone. Animal and human studies have demonstrated a safe and effective lowering of blood pressure with chronic electrical stimulation of the carotid sinus, and have generated enthusiasm for implantable carotid sinus stimulators in the treatment of hypertension.
Summary:
Electrical baroreflex stimulation appears safe and effective, and may represent a useful adjunct to medical therapy in patients with resistant hypertension.
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