What Is Stellate Ganglion Block?
A stellate ganglion block (SGB) is an injection of local anesthetic into a sympathetic nerve cluster in the neck. It is used for chronic pain and is being studied for PTSD.
Classification: Other › Stellate Ganglion Block
Key Takeaway
SGB has established pain applications and growing evidence for PTSD symptom reduction. It is considered an off-label emerging therapy for mental health.
Why This Matters
The stellate ganglion is a collection of sympathetic nerve cell bodies at the base of the neck. Blocking it with a local anesthetic under imaging guidance has long been used for complex regional pain syndrome and certain circulatory conditions. More recent research has studied SGB for PTSD, with some trials showing meaningful symptom reduction in veterans and others. The effect is thought to involve temporary reset of sympathetic overactivation. Risks are generally low in experienced hands but include bleeding, temporary Horner’s syndrome, and rare vascular complications.
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Frequently Asked Questions
What is a stellate ganglion block?
An injection of local anesthetic into a sympathetic nerve cluster at the base of the neck, used for chronic pain and being studied for PTSD.
Does SGB work for PTSD?
Some trials show meaningful symptom reduction, particularly for hyperarousal and anxiety. It is considered emerging rather than standard care.
Is SGB safe?
It is a well-established procedure in experienced hands. Risks include temporary side effects like Horner’s syndrome and, rarely, more serious vascular complications.
