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Electrophysiological Predictors of Cervical DRG Pulsed Radiofrequency Outcomes

The Role of Electrophysiological Evaluation in Predicting the Success of Dorsal Root Ganglion Pulsed Radiofrequency Treatment in Patients With Chronic Cervical Radicular Pain

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT07776431
Enrollment
20
Registered
2026-08-20
Start date
2025-04-01
Completion date
2026-11-01
Last updated
2026-08-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Chronic Cervical Radicular Pain

Keywords

Cervical Radicular Pain, Cervical Radiculopathy, Dorsal Root Ganglion, Pulsed Radiofrequency, Electromyography, Nerve Conduction Studies, Electrophysiological Evaluation

Brief summary

This observational study aims to determine whether electromyography and nerve conduction study findings can help predict the response to cervical dorsal root ganglion pulsed radiofrequency treatment in patients with chronic cervical radicular pain. Adults aged 18 to 75 years with unilateral cervical radicular pain who are already scheduled to receive pulsed radiofrequency treatment will undergo an electrophysiological evaluation before the procedure. Participants will be classified according to whether cervical radiculopathy is detected on electrophysiological testing. Pain intensity, neck-related disability, quality of life, and depressive symptoms will be assessed before treatment and at 3 weeks, 3 months, and 6 months after the procedure. Outcomes will be compared between participants with and without electrophysiological evidence of radiculopathy to evaluate whether these findings are associated with treatment success.

Interventions

None listed

Sponsors

Marmara University
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

Age between 18 and 75 years Presence of cervical disc herniation and/or spinal stenosis Unilateral cervical radicular pain radiating to the arm for at least 3 months, confirmed by clinical evaluation, physical examination, and radiological imaging Inadequate response to conservative treatments, including physical therapy, medical treatment, and/or epidural steroid injection

Exclusion criteria

History of cervical spine surgery Presence of myelopathy Predominantly axial neck pain Active infection Vertebral fracture Coagulation disorder Presence of a cardiac pacemaker Refusal or inability to provide informed consent

Design outcomes

Primary

MeasureTime frameDescription
Change From Baseline in Pain Intensity Assessed by the Numeric Rating ScaleBaseline, 3 weeks, 3 months, and 6 months after cervical dorsal root ganglion pulsed radiofrequency treatmentPain intensity will be assessed using an 11-point Numeric Rating Scale ranging from 0, indicating no pain, to 10, indicating the worst imaginable pain. Change from baseline will be calculated at each follow-up visit and compared between participants with and without electrophysiological evidence of cervical radiculopathy. A greater reduction in score indicates greater improvement in pain.
Treatment Success Based on the Numeric Rating Scale3 weeks, 3 months, and 6 months after cervical dorsal root ganglion pulsed radiofrequency treatmentTreatment success is defined as a reduction of at least 50% in the Numeric Rating Scale pain score compared with baseline. The proportion of participants achieving treatment success will be compared between participants with and without electrophysiological evidence of cervical radiculopathy.

Secondary

MeasureTime frameDescription
Change From Baseline in Neck-Related Disability Assessed by the Neck Disability IndexBaseline, 3 weeks, 3 months, and 6 months after cervical dorsal root ganglion pulsed radiofrequency treatmentNeck-related disability will be assessed using the Neck Disability Index. Higher scores indicate greater neck-related disability. Change from baseline will be calculated at each follow-up visit and compared between participants with and without electrophysiological evidence of cervical radiculopathy.
Change From Baseline in Health-Related Quality of Life Assessed by EuroQolBaseline, 3 weeks, 3 months, and 6 months after cervical dorsal root ganglion pulsed radiofrequency treatmentHealth-related quality of life will be assessed using the EuroQol questionnaire. The instrument evaluates mobility, self-care, usual activities, pain or discomfort, and anxiety or depression. It also includes a visual analog scale ranging from 0 to 100, with higher scores indicating better perceived health status. Changes from baseline will be compared between the two electrophysiological groups.
Change From Baseline in Depressive Symptoms Assessed by the Beck Depression InventoryBaseline, 3 weeks, 3 months, and 6 months after cervical dorsal root ganglion pulsed radiofrequency treatmentDepressive symptoms will be assessed using the 21-item Beck Depression Inventory. Total scores range from 0 to 63, with higher scores indicating more severe depressive symptoms. Change from baseline will be calculated at each follow-up visit and compared between participants with and without electrophysiological evidence of cervical radiculopathy.

Countries

Turkey (Türkiye)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 21, 2026