Deep brain stimulation for the treatment of resistant hypertension

Area of Science:

• Neuroscience
• Cardiovascular Medicine
• Medical Device Technology

Background:

• Hypertension is a major cardiovascular disease risk factor, with resistant hypertension affecting up to 16.4% of patients.
• Resistant hypertension, often neurogenic, involves elevated sympathetic activity and impaired homeostatic reflexes.
• Conventional treatments are often ineffective for resistant hypertension, necessitating novel therapeutic approaches.

Purpose of the Study:

• To review the potential of deep brain stimulation (DBS) as a novel therapy for drug-resistant hypertension.
• To explore the mechanisms and efficacy of DBS in managing severe, treatment-resistant hypertension.
• To identify optimal brain targets for DBS in hypertension management.

Main Methods:

• Review of existing literature on deep brain stimulation for hypertension.
• Analysis of studies investigating DBS in patients with concurrent neuropathic pain and hypertension.
• Examination of animal studies identifying central autonomic control centers.

Main Results:

• Deep brain stimulation demonstrated blood pressure reduction and improved baroreflex sensitivity in initial patient studies.
• The ventrolateral periaqueductal gray is identified as a promising target for DBS in hypertension.
• Animal models support the ventrolateral periaqueductal gray's role in autonomic outflow regulation.

Conclusions:

• Deep brain stimulation presents a promising therapeutic avenue for severe, resistant hypertension.
• Targeting the ventrolateral periaqueductal gray via DBS may modulate autonomic activity to control blood pressure.
• Further research is warranted to establish the safety and efficacy of DBS for resistant hypertension.