Stellate Ganglion Block (SGB)
Stellate Ganglion Block (SGB) is a minimally invasive procedure that may help calm an overactive nervous system. At Iowa Ketamine Clinic, SGB is used to support people with Post-Traumatic Stress Disorder (PTSD), Long COVID Syndrome, Chronic Anxiety, and Chronic Neuropathic Pain Syndromes affecting the arms, upper chest, and neck.
"This is already better than any anxiety pill I've ever taken."
- Actual patient statement
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What Is a Stellate Ganglion Block?
A Stellate Ganglion Block is an injection of local anesthetic into a small group of nerves in the neck called the stellate ganglion.
These nerves are part of the sympathetic nervous system. This system controls the body’s fight-or-flight response.
When the stellate ganglion is temporarily blocked, stress signals can quiet down. For some people, this allows the nervous system to reset into a calmer state.
SGB has been used in medical care for many years and is considered a well-established procedure.
Why the Stellate Ganglion Matters
The stellate ganglion helps regulate:
- Stress and fear responses
- Pain signaling
- Blood flow to the head, arms, and upper chest
- Automatic functions such as heart rate and sweating
In some conditions, this system stays stuck in a state of overactivation. SGB works by briefly interrupting those signals.
What Changes Can Occur After SGB?
When the block is effective, people may notice:
- A calmer or quieter feeling in the body
- Reduced anxiety or hyperarousal
- Less pain in the neck, arms, or upper chest
- Warmth in the face or arm
Temporary effects such as a drooping eyelid, hoarseness, or facial warmth may occur. These effects usually resolve within a few hours and help confirm that the block reached the intended nerve group.
Relief may begin soon after the procedure. How long it lasts varies by individual and condition.
Conditions Treated with SGB
At Iowa Ketamine Clinic, Stellate Ganglion Block is used for the following conditions:
- Post-Traumatic Stress Disorder (PTSD): To help alleviate symptoms such as hyperarousal, anxiety, and flashbacks by resetting sympathetic nervous system responses.
- Long COVID Syndrome: For managing persistent symptoms such as fatigue, pain, and autonomic dysfunction.
- Chronic Anxiety: To reduce ongoing sympathetic overdrive that contributes to anxiety disorders.
- Chronic Neuropathic Pain Syndromes: Specifically, those affecting the arms, upper chest, and neck, including conditions such as complex regional pain syndrome (CRPS) or postherpetic neuralgia.
SGB is often considered when other treatments have not provided enough relief and may be used alongside ongoing care.
What to Expect During the Procedure
SGB is performed in a controlled outpatient setting.
Here is what the visit typically looks like:
- You will lie comfortably on your back
- Your heart rate, blood pressure, and oxygen levels will be monitored
- The neck area will be cleaned and numbed
- Ultrasound guidance is used to place the injection accurately
- The injection itself takes less than 30 minutes
- You will be observed afterward before going home
You should plan to have someone drive you home after the procedure.
SGB and PTSD Featured on 60 Minutes
Interest in Stellate Ganglion Block (SGB) for PTSD has grown significantly in recent years. In this 60 Minutes segment, physicians, researchers, and patients discuss how SGB is being used as part of care for post-traumatic stress and the ongoing research surrounding the treatment.
This video is provided for educational purposes and does not replace medical advice or an evaluation by a qualified healthcare provider.
Frequently Asked Questions About Stellate Ganglion Block
Don't see your question? Just give us a call at (515) 401-4774. We're happy to discuss any concerns or questions you might have.
Ready to Take the First Step?
Reaching out for help isn’t easy, and it takes real courage to explore new options. When you’re ready, our team is here to walk you through the referral process and answer any questions you may have about Stellate Ganglion Block (SGB).
Talk with your current mental health or primary care provider about SGB
Ask them to send a referral to Iowa Ketamine Clinic
Once we receive your referral, we’ll reach out to schedule your consultation
If it’s helpful, you’re welcome to share our referral information page with your provider so they have all the details. Here's the link.
If your provider has any questions about SGB, our approach, or the referral process, we’re always happy to connect with them directly.