Randomized Trialhigh evidence
Ultrasound-Guided Stellate Ganglion Block in Fibromyalgia: A Randomized, Single-Center, Single-Blind, Sham-Controlled Trial.
Pain research & management·January 1, 2026·PMID 42530408
Why it mattersMany fibromyalgia patients remain symptomatic despite pharmacotherapy. SGB offers a potential adjunctive interventional option that produced large, clinically meaningful short-term improvements in disease impact and pain in this trial, though the effect size may be inflated by unblinding and placebo effects.
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