Temporal interference stimulation suppresses hippocampal hyperactivity in mesial temporal lobe epilepsy
Summary
A 20-patient pilot study of temporal interference stimulation targeting hippocampus in drug-resistant mesial temporal lobe epilepsy showed 51% median reduction in hippocampal spike activity on concurrent SEEG recording during stimulation, without activating overlying cortex. Four of 20 patients achieved >50% seizure reduction at 3 months from the non-invasive stimulation protocol alone.
Why it matters
Non-invasive hippocampal epilepsy suppression through TI stimulation — avoiding surgery and implants entirely — is a landmark result if it replicates. For the 40% of TLE patients who cannot achieve seizure freedom with drugs but are reluctant to pursue temporal lobectomy, non-invasive hippocampal neuromodulation offers a completely new treatment paradigm.
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