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Deep Brain Stimulation and Motor Cortex Stimulation for Chronic Pain.

Patrick Senatus1, Sarah Zurek1, Milind Deogaonkar2

  • 1Department of Neurosurgery, Ayer Neuroscience Institute, Hartford HealthCare, Hartford, CT, USA.

Neurology India
|December 15, 2020
PubMed
Summary

Deep brain stimulation (DBS) and Motor Cortex stimulation (MCS) offer partial relief for chronic pain by targeting specific brain areas. This review covers pain pathways, stimulation targets, and patient selection for these advanced treatments.

Keywords:
Chronic painMotor cortexneuromodulationneurostimulationperi-aqueductal grayperiventricular graythalamus

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Area of Science:

  • Neuroscience
  • Pain Management
  • Neurosurgery

Background:

  • Chronic pain is a complex condition with limited effective treatments.
  • Neuromodulation techniques like Deep Brain Stimulation (DBS) and Motor Cortex Stimulation (MCS) are explored for pain control.
  • Various brain targets, including the thalamus, periaqueductal gray, and motor cortex, have shown potential.

Purpose of the Study:

  • To review the current understanding of pain pathways and theories.
  • To explore the rationale and targets for DBS and MCS in chronic pain management.
  • To discuss patient selection criteria and technical aspects of these stimulation techniques.

Main Methods:

  • Literature review of studies on DBS and MCS for chronic pain.
  • Analysis of pain pathways, theories, and neuroanatomical targets.
  • Discussion of clinical application, including patient selection and surgical techniques.

Main Results:

  • Stimulation of specific brain regions can provide partial pain relief in selected patients.
  • Identified targets include sensory thalamus, medial thalamic nuclei (CL), periaqueductal gray, periventricular gray, and nucleus accumbens.
  • DBS and MCS represent viable, albeit complex, therapeutic options for refractory chronic pain.

Conclusions:

  • DBS and MCS are established, though not universally effective, interventions for chronic pain.
  • Careful patient selection and precise targeting are crucial for optimizing outcomes.
  • Further research into optimal targets and techniques may enhance efficacy.