AIBRIEF
Three patients with stubborn face pain got relief after researchers mapped their individual pain networks. The study is tiny, but the targeting strategy is the news.
A Stanford team led by neurosurgeon Vivek Buch mapped each patient's pain network first, then sent small electrical pulses to scramble the specific signal driving that person's chronic face pain. The approach is a personalized version of deep brain stimulation (DBS), the same hardware used for Parkinson's, redirected by a per-patient map rather than a fixed atlas point.
The case series, published in Brain Stimulation on July 30, enrolled three people with severe, refractory face pain. Surgeons temporarily implanted thin electrodes through small skull openings, mapped each patient's pain-network signature over three days, then delivered targeted signals. One woman in her 40s went on to receive four permanent wires; she reported continued relief at both 6 and 12 months, per Science News.
Decades of DBS-for-pain trials have produced inconsistent results, plausibly because chronic pain is generated by distributed networks rather than a single focal target. Per-patient mapping is meant to fix that targeting problem, and a related Congress of Neurological Surgeons 2025 abstract from the Deisseroth group extends the approach to rapid, multisite mapping for refractory pain.
The caveats are large: three patients, all with face pain, no sham control, open-label case series with short follow-up. Michael Lim told Science News the work opens a new way to treat pain that is currently underserved. The Stanford Brain Stimulation Lab is the program to watch.