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Comparison Between Greater Occipital Nerve Block and Pulsed Radiofrequency in the Management of Chronic Migraine
Sponsor: Sohag University
Summary
Comparative Study of Greater Occipital Nerve Block and Pulsed Radiofrequency in the Management of Chronic Migraine : Clinical Outcomes and Neurophysiological Correlates A Prospective Randomized Study
Official title: Comparative Study of Greater Occipital Nerve Block and Pulsed Radiofrequency in the Management of Chronic Migraine : Clinical Outcomes and Neurophysiological Correlates A Prospective Randomized Study
Key Details
Gender
All
Age Range
18 Years - 65 Years
Study Type
INTERVENTIONAL
Enrollment
70
Start Date
2026-05-01
Completion Date
2027-05-01
Last Updated
2026-04-06
Healthy Volunteers
No
Conditions
Interventions
Greater occiptal nerve block
Injection Procedure: 1. Local skin infiltration with 1-2 mL of 1% lidocaine at puncture site. 2. GON block using 3-5 mL of local anesthetic, optionally combined with 20-40 mg triamcinolone ( Bilaterally ) 3. Needle placement confirmed by ultrasound visualization of the nerve and spread of injectate. 4. Observe patient for 15-20 minutes post-injection for immediate adverse events.
Pulsed radiofrequency
1. Introduce RF cannula adjacent to GON under ultrasound guidance. 2. Confirm sensory stimulation: paresthesia at occipital scalp at \<0.5 V. 3. PRF settings: * Temperature: ≤42°C * Pulse duration: 20 ms * Frequency: 2 Hz * Duration: 120 seconds per cycle, 2 cycles per side 4. Continuous monitoring of patient comfort and vital signs.