ArticleThe Journal of international medical research2026
High-dose pulsed radiofrequency of the C2 dorsal root ganglion versus nerve block for cervicogenic headache with ocular symptoms: A retrospective cohort study.
Article in The Journal of international medical 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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Abstract
ObjectivesTo compare the efficacy of C2 dorsal root ganglion high-dose pulsed radiofrequency and nerve block in managing cervicogenic headache with ocular symptoms.MethodsThis retrospective study analyzed 55 cervicogenic headache patients with ocular symptoms (blurred vision, eye pain, or photophobia) treated at the Second Hospital of Dalian Medical University from January 2022 to December 2024. Patients who received either high-dose pulsed radiofrequency (Group A, n = 29) or nerve block therapy (Group B, n = 26), both targeting the C2 dorsal root ganglion, were consecutively enrolled at our center. Pain intensity and ocular symptom severity were assessed using the numeric rating scale and Ocular Surface Disease Index, respectively, before treatment and at 1 day, 1 week, and 1 month after treatment.ResultsThe primary outcome was the change in pain intensity (as assessed using the numeric rating scale). Numeric rating scale scores at all postoperative time points in both groups were significantly reduced compared with preoperative values (all
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