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Using Lower Amplitudes to Maintain Effective High Dose Spinal Cord Stimulation Therapy (SCS Dosing Pilot Study).

Amr O El-Naggar1, Christopher L Reis2, John A Hatheway3

  • 1Drez One, Somerset, KY, USA.

Neuromodulation : Journal of the International Neuromodulation Society
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Summary
This summary is machine-generated.

High-dose spinal cord stimulation (SCS) can maintain pain relief and patient satisfaction at low amplitudes. Most patients with chronic pain found 20% perception threshold amplitude effective for high-dose SCS therapy.

Keywords:
AmplitudeSCS dosingchronic paindose titrationhigh dosespinal cord simulation

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Area of Science:

  • Neurosurgery
  • Pain Management
  • Neuromodulation

Background:

  • Spinal cord stimulation (SCS) is a proven therapy for chronic pain.
  • Limited data exists on minimum amplitude requirements for high-dose SCS parameters.
  • This study addresses the need for guidance on amplitude settings for high-dose SCS.

Purpose of the Study:

  • To determine the minimum amplitude required to maintain patient satisfaction and pain relief during high-dose SCS.
  • To investigate amplitude dose-response in patients treated with 1000 Hz and 90 μsec SCS parameters.

Main Methods:

  • Patients with chronic pain receiving high-dose SCS (1000 Hz, 90 μsec) were enrolled.
  • Participants underwent blinded amplitude titration at 80%, 60%, 40%, and 20% of their baseline perception threshold.
  • Patient satisfaction and pain scores (VAS) were assessed at each amplitude level.

Main Results:

  • The majority of patients maintained therapy satisfaction (70%) and pain relief (63.3%) at 20% perception threshold amplitude.
  • A significant portion of patients required lower amplitudes than initially expected for effective pain management.
  • Five patients needed their original baseline amplitude to sustain therapy effectiveness.

Conclusions:

  • High-dose SCS can be effective at amplitudes significantly below the perception threshold in a majority of patients.
  • These findings suggest potential for optimizing SCS therapy by reducing amplitude while maintaining efficacy.
  • Further research can explore the long-term effects and patient variability in response to low-amplitude high-dose SCS.