High‑frequency spinal cord stimulation cuts pain and boosts sensation in diabetic neuropathy patients

A multicenter, randomized clinical trial conducted by researchers from the Pain Outcomes Lab at Wake Forest University School of Medicine has demonstrated that high‑frequency spinal cord stimulation (HF‑SCS) can significantly alleviate pain and enhance sensory function in patients with treatment‑resistant painful diabetic neuropathy. The study, which enrolled participants across several clinical sites, compared HF‑SCS therapy with standard care and measured outcomes using validated pain scales and sensory testing protocols.

Results indicated a marked reduction in reported pain intensity and notable improvements in tactile and vibration perception among those receiving HF‑SCS. In addition to clinical symptom relief, investigators observed early evidence of increased density of small nerve fibers in skin biopsies taken from a subset of participants, suggesting a potential regenerative effect of the therapy. The researchers cautioned that the significance of these histological changes remains uncertain and emphasized the need for longer‑term follow‑up to determine whether the fiber density increase persists and translates into sustained functional benefits.

The findings provide promising evidence that high‑frequency spinal cord stimulation may offer a viable therapeutic option for individuals whose diabetic neuropathic pain does not respond to conventional treatments. Ongoing studies are planned to confirm the durability of the observed benefits and to clarify the mechanisms underlying nerve fiber remodeling observed in the trial.