Clinical Efficacy Evaluation of Ultrasound-Guided C2 Dorsal Root Nerve Pulsed Radiofrequency Combined with Stellate Ganglion Block in the Treatment of Cervicogenic Headache: A Retrospective Cohort Study
Bibliographic record
Abstract
Purpose: To explore the therapeutic effect of C2 dorsal root ganglion pulsed radiofrequency (PRF) combined with stellate ganglion block (SGB) in patients with cervicogenic headache (CEH). Patients and Methods: We retrospectively reviewed 90 patients diagnosed with CEH who were admitted to our hospital between May 2019 and May 2022. All patients were divided into three groups (n = 30 each) according to the actual treatment method used: ultrasound-guided SGB, ultrasound-guided C2 dorsal root ganglion PRF treatment, and ultrasound-guided C2 dorsal root ganglion PRF combined with SGB treatment. Patients’ pain intensity, sleep, and mood changes were assessed by statistically analyzing their pain visual analog scale (VAS), Pittsburgh Sleep Quality Inventory (PSQI), and short-form McGill Pain Questionnaire affective item scores before and after treatment. Results: The post-treatment VAS, PSQI, and McGill scores were significantly decreased in all patients ( P < 0.05), and all three scores in ultrasound-guided C2 dorsal root ganglion PRF combined with SGB were lower than those in ultrasound-guided SGB alone and ultrasound-guided C2 dorsal root ganglion PRF alone ( P < 0.05). Conclusion: The use of ultrasound-guided C2 dorsal root ganglion PRF combined with SGB in patients with CHE is effective in alleviating pain and improving sleep, and deserves to be replicated in the clinic. Keywords: cervicogenic headache, C2 dorsal root ganglion, pulsed radiofrequency, stellate ganglion block
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.041 | 0.004 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.002 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".