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  • Title: Peripheral nerve field stimulation for trigeminal neuralgia, trigeminal neuropathic pain, and persistent idiopathic facial pain.
    Author: Klein J, Sandi-Gahun S, Schackert G, Juratli TA.
    Journal: Cephalalgia; 2016 Apr; 36(5):445-53. PubMed ID: 26209705.
    Abstract:
    OBJECTIVE: Peripheral nerve field stimulation (PNFS) is a promising modality for treatment of intractable facial pain. However, evidence is sparse. We are therefore presenting our experience with this technique in a small patient cohort. METHODS: Records of 10 patients (five men, five women) with intractable facial pain who underwent implantation of one or several subcutaneous electrodes for trigeminal nerve field stimulation were retrospectively analyzed. Patients' data, including pain location, etiology, duration, previous treatments, long-term effects and complications, were evaluated. RESULTS: Four patients suffered from recurrent classical trigeminal neuralgia, one had classical trigeminal neuralgia and was medically unfit for microvascular decompression. Two patients suffered from trigeminal neuropathy attributed to multiple sclerosis, one from post-herpetic neuropathy, one from trigeminal neuropathy following radiation therapy and one from persistent idiopathic facial pain. Average patient age was 74.2 years (range 57-87), and average symptom duration was 10.6 years (range 2-17). Eight patients proceeded to implantation after successful trial. Average follow-up after implantation was 11.3 months (range 5-28). Using the visual analog scale, average pain intensity was 9.3 (range 7-10) preoperatively and 0.75 (range 0-3) postoperatively. Six patients reported absence of pain with stimulation; two had only slight constant pain without attacks. CONCLUSION: PNFS may be an effective treatment for refractory facial pain and yields high patient satisfaction.
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