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Ultrasound-Guided Stellate Ganglion Block for Refractory Chronic Migraine: A Prospective Evaluation

ClinicalTrials.gov · COMPLETED, 2025

42 participants

Abstract

Stellate Ganglion Block (SGB) is an interventional anesthetic technique used to treat pain conditions affecting the head, face, neck, and upper extremities by temporarily blocking sympathetic nerve output. Ultrasound guidance improves anatomical visualization and facilitates accurate needle placement.

Emerging evidence suggests that repeated ultrasound-guided SGB may be associated with reductions in headache intensity and frequency in patients with migraine and with improvement in migraine-related disability. However, limited data exist regarding its use in highly treatment-resistant chronic migraine, particularly in patients who have not responded adequately to preventive pharmacological therapies and prior interventional treatments.

The primary objective of this study is to evaluate 6-month clinical outcomes following ultrasound-guided SGB in patients with treatment-resistant chronic migraine. Secondary objectives include assessing changes in pain intensity, migraine-related disability, analgesic use, patient-reported global improvement, and treatment tolerability.

Conditions: Headache, Migraine, Chronic Migraine Headache.

Primary outcome: Change in Monthly Headache Days (MHD).

Enrollment: 42 participants.

How strong is the evidence?

Evidence Hub reads this as a clinical trial, done in people. Its evidence level is 3 of 5 (Moderate · trial / cohort / secondary analysis). Trials without a large randomized design, cohorts and secondary analyses give moderate evidence. Reported size: 42 participants or records.

How the five levels of evidence work. The level is assigned automatically from the abstract and can be wrong, so check the paper.

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