ArticleJournal of pain research2026
Efficacy of a Novel Ultrasound-Guided C8 Dorsal Root Ganglion Puncture Approach and Radiofrequency Treatment for Postherpetic Neuralgia.
Article in Journal of pain research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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8 authors.
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Abstract
Purpose: While pulsed radiofrequency ablation of spinal nerve roots, particularly targeting the dorsal root ganglion (DRG), has been established for postherpetic neuralgia (PHN), the C8 DRG remains underrepresented in clinical literature due to its unique anatomical constraints. Limited studies address the technical feasibility and efficacy of C8 DRG intervention in both domestic and international practice. This study introduces a novel puncture approach of ultrasound-guided C8 dorsal root ganglion pulsed radiofrequency to evaluate its clinical efficacy and safety of in patients with refractory postherpetic neuralgia. Patients and Methods: A retrospective analysis was conducted on 17 patients from March 2023 through May 2025 meeting the diagnostic criteria of the Results: All patients underwent the procedure successfully with no severe complications. At 3-month follow-up, median scores showed significant reductions across all outcome measures (Friedman test, all p<0.001): VAS was 7.0 (IQR 7.0-8.0) to 1.0 (IQR 1.0-1.0) ( Limitations: Retrospective study, comparator group absence, and patients who underwent radiofrequency treatment were concurrently taking neuropathic pain medications, injected the corticosteroid during the procedure, so subsequent score improvements cannot be definitively attributed to pulsed radiofrequency therapy alone. Conclusion: This retrospective study preliminarily suggests that ultrasound-guided C8 dorsal root ganglion pulsed radiofrequency therapy may demonstrate favorable safety and potential efficacy.
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