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Trigeminal Neuralgia Electrophysiology
Trigeminal Evoked Responses to Improve Rhizotomy
Who can join
Ages 18 and older · All sexes · Healthy volunteers welcome
Full eligibility criteria
Inclusion Criteria (TGN): * Adults of 18 years or older * Scheduled to undergo percutaneous rhizotomy for facial pain Exclusion Criteria (TGN): * Facial pain of unclear origin (i.e. not clearly TGN pain) * Rhizotomy procedure canceled Inclusion Criteria (Healthy controls) * Adults of 18 years or older Exclusion Criteria (Healthy Controls) * Diagnosis or history of facial pain such as TMD or TGN * History of migraine * History of any functional pain disorder: fibromyalgia, IBS, CRPS * Recent chronic pain (within last month) * Unwilling to participate for two hours in lab * Current acute pain
About the study
The study intervention is to perform standard somatosensory evoked responses limited to the face during rhizotomy procedures of the gasserian ganglion (trigeminal ganglion) for the treatment of trigeminal neuralgia. The evoked responses will be measured at two locations before and after the clinical rhizotomy including: the standard contralateral scalp (EEG) and at the gasserian ganglion through an FDA-approved recording electrode.
What is being tested
- Trigeminal Electrophysiology (procedure)
Sponsor: University of Minnesota · Participants: 30 · Started: Apr 4, 2022
Contact the study team
- Matthew Maple · Phone: 612-946-1424
Official record on ClinicalTrials.gov — NCT05269472
Locations in the U.S.
| Minnesota | University of Minnesota, Minneapolis |
Conditions
From ClinicalTrials.gov, data retrieved Sep 30, 2026. Each study sets its own eligibility; the study team decides who can join.