• World Neurosurg · Apr 2024

    Long-term Patient-Reported Outcomes of Stereotactic Radiosurgery for Trigeminal Neuralgia.

    • Shoji Yomo, Kyota Oda, and Kazuhiro Oguchi.
    • Division of Radiation Oncology, Aizawa Comprehensive Cancer Center, Aizawa Hospital, Matsumoto City, Nagano Prefecture, Japan. Electronic address: yomoshoji@gmail.com.
    • World Neurosurg. 2024 Apr 1; 184: e682e688e682-e688.

    BackgroundWe aimed to evaluate patient-reported outcomes (PROs) of stereotactic radiosurgery (SRS) for TN in terms of treatment efficacy and toxicity.MethodsWe retrospectively analyzed patients who underwent Gamma Knife SRS for idiopathic or classic TN between January 2013 and February 2022. Questionnaires regarding pain relief, treatment toxicity, and post-SRS treatment were sent between late 2022 and early 2023, and the responses received were analyzed. The Faces Pain Scale (FPS, 0: best, 5: worst) was used for quantitative evaluation.ResultsResponses were received from 51 patients (76%). The mean pre-SRS FPS score was 4.1 (standard deviation (SD) 1.1). Forty-three patients (83%) reported initial pain relief and the best post-SRS FPS score was 1.1 (SD 1.5) (P < 0.001). At a median follow-up of 50 months, the FPS score was still 1.1 (SD 1.6) (P < 0.001). Analysis of factors contributing to durable pain relief showed neurovascular compression to be associated with FPS score improvement (Odds ratio 5.7, 95% CI 1.1-29.7, P = 0.038). Facial dysesthesia had a mean pre-SRS FPS score of 1.7 (SD 2.0) and a mean score of 1.4 (SD 1.7) at the last follow-up (P = 0.32). Eight patients (15%) received post-SRS interventions and 21 (40%) no longer required pharmacotherapy without post-SRS intervention. Forty-four patients (85%) reported being satisfied with SRS.ConclusionsWe analyzed PROs of SRS for TN using the FPS and showed SRS to be a safe and effective treatment modality achieving long lasting pain relief.Copyright © 2024 Elsevier Inc. All rights reserved.

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