Peripheral Nerve Stimulation for Refractory Trigeminal Pain: Recent Single-Institution Case Series With Long-Term Follow-Up and Review of the Literature.
Abstract
Peripheral neurostimulation (PNS) for medically refractory trigeminal pain is an emerging alternative to traditional surgical approaches, with safety and efficacy demonstrated in several retrospective series and a prospective trial currently in progress. Many existing studies suffer from relatively small numbers and short or inconsistent follow-up, making balanced treatment assessment difficult. Consecutive cases of trial and permanent placement of trigeminal branch stimulation electrodes by a single surgeon from May 2014 through January 2019 were retrospectively reviewed from a prospectively collected database, following the PROCESS guidelines for surgical case series. Outcomes were assessed at six months and at last follow-up. Ninteen patients underwent trial electrode placement, with 15 patients undergoing permanent system placement. The most common diagnoses were idiopathic trigeminal neuralgia Type 2 (N = 8) and trigeminal neuropathic pain (N = 7). Median follow-up was 14 months (range 6-58 months). At last follow-up, 12 of 15 implanted patients (80%) were still receiving stimulation, with mean (median) pain reduction of 52.3% (47.5%). Infection and revision rates were high, although erosion and migration, which have typic...Continue Reading
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