A case series of new-onset headache and neurological issues after thoracolumbar spinal cord stimulators.

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Although spinal cord stimulator (SCS) therapy is generally used safely to treat chronic neuropathic pain conditions, this document highlights the less reported complication of unusual neurological problems including headaches. These developed temporally after the initiation of SCS therapy despite initial positive response to pain. The mechanisms might include activation of trigeminal receptors and neuroplasticity after SCS. We present a series of four cases where patients developed new neurological symptoms like headaches, facial twitching, and tinnitus, that were related to SCS activation. Despite adjustments to the SCS settings and extensive evaluations, these symptoms persisted in all cases, leading to the decision to explant SCS which was otherwise helping pain.