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Updated: Feb 15, 2026

Analysis of Gene Expression Changes in the Rat Hippocampus After Deep Brain Stimulation of the Anterior Thalamic Nucleus
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Thalamic Directional Deep Brain Stimulation for tremor: Spend less, get more.

P Rebelo1, A L Green1, T Z Aziz1

  • 1Nuffield Department of Surgery, University of Oxford, Oxford, UK; John Radcliffe Hospital, Oxford, UK.

Brain Stimulation
|January 27, 2018
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Summary
This summary is machine-generated.

Directional Deep Brain Stimulation (D-DBS) significantly expands the therapeutic window for thalamic stimulation, improving outcomes without negatively impacting device lifespan or power consumption. This advanced technique offers a promising alternative for managing tremor syndromes.

Keywords:
Current steeringDirectional Deep Brain StimulationTremor

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Area of Science:

  • Neurosurgery
  • Biomedical Engineering
  • Neurology

Background:

  • Directional Deep Brain Stimulation (D-DBS) enables precise electrical field shaping to avoid side effects.
  • Concerns about device lifespan and survey complexity have limited the use of D-DBS features.

Purpose of the Study:

  • To evaluate if chronically implanted D-DBS systems can enhance the therapeutic window in thalamic deep brain stimulation (DBS).
  • To assess the impact of D-DBS on device lifespan.
  • To investigate D-DBS efficacy in patients with drug-resistant tremor syndromes.

Main Methods:

  • Retrospective evaluation of 8 patients with drug-resistant tremor syndromes.
  • Assessment of directional stimulation's impact on Therapeutic Window (TW), Therapeutic Current Strength (TCS), tremor and disability scores.
  • Volume of Tissue Activation (VTA) modeling.

Main Results:

  • Significant improvements in TW (91%) and reductions in TCS (31%) with D-DBS.
  • No increase in average IPG power consumption; a 6% reduction compared to omnidirectional stimulation.
  • VTA modeling demonstrated efficient tissue activation with D-DBS.

Conclusions:

  • D-DBS enhances the therapeutic window in thalamic DBS, potentially reducing disability without frequent reprogramming.
  • Device lifespan and power consumption were not adversely affected by D-DBS in this study cohort.