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If you or someone you care about is thinking about a stellate ganglion block (SGB), it’s normal to feel nervous. This treatment is often used for PTSD, anxiety, and chronic pain. While no medical procedure is completely risk-free, many people find that SGB brings real relief when other treatments haven’t worked.
Let’s take a closer look at how the procedure works, possible risks, and what you should know before deciding.
What is a Stellate Ganglion Block?
A stellate ganglion block is a simple injection given in the neck. It targets a group of nerves called the stellate ganglion, which plays a role in the body’s “fight or flight” stress response. For people with PTSD or severe anxiety, this response can stay active even when there’s no real danger.
The goal of the injection is to calm this response. A doctor uses imaging to guide a small needle and inject local anesthetic near the nerves. This can help reset the nervous system and reduce symptoms.
Why is a Stellate Ganglion Block Used?
A stellate ganglion block is used to help calm the body’s overactive stress response. This can be especially helpful for people dealing with conditions like PTSD, severe anxiety, or chronic pain that hasn’t improved with traditional treatments.
The injection targets a group of nerves in the neck that are part of the sympathetic nervous system—this system controls the “fight or flight” reaction that often stays stuck in overdrive after trauma.
By interrupting that cycle, the block can give the brain and body a chance to reset. Many people report feeling more relaxed, less on edge, and better able to focus after the procedure. It’s also used for other conditions, like complex regional pain syndrome (CRPS) or pain following an injury or surgery. In some cases, it may even help with hot flashes related to menopause or certain medical treatments.
While it’s not a cure, the stellate ganglion block can be a helpful tool in a larger treatment plan alongside other medication management for mental health—-especially for those who haven’t found relief through therapy or medication alone. You may be wondering, though, is a stellate ganglion block dangerous?
Is a Stellate Ganglion Block Safe?
When performed by a trained provider, a stellate ganglion block is considered safe. The procedure takes less than 30 minutes, and patients usually go home the same day. Imaging tools like ultrasound or fluoroscopy help the doctor place the needle in the correct spot, reducing the chance of complications.
Common Stellate Ganglion Block Side Effects
After the injection, most people experience temporary and mild side effects, such as:
- Drooping eyelid
- Hoarseness or voice changes
- Warm or tingling feeling in the arm or hand
- Red eyes or stuffy nose
- Headache or dizziness
These effects are normal and usually go away within a few hours.
Serious Risks of a Stellate Ganglion Block
While rare, there are some more serious risks you should know about. These can include:
- Infection at the injection site
- Bleeding
- Accidental nerve injury
- Seizure (if the anesthetic enters a blood vessel)
- Trouble breathing (if nearby nerves are affected)
These complications are uncommon, especially when the procedure is done with imaging by an experienced provider. Overall, data is limited as to any adverse long-term side effects of stellate ganglion block. It’s best to consult with our team of professionals if you have any concerns
Who Should Avoid a Stellate Ganglion Block?
Not everyone is a good candidate for a stellate ganglion block. You may need to avoid the procedure if you have:
- An active infection
- A bleeding disorder
- Severe lung or heart problems
- An allergy to the medications used
Always talk to your doctor and share your full medical history before moving forward with treatment.
What to Expect After Stellate Ganglion Block Treatment
Many people feel better within minutes or hours after the procedure. Some describe a calm, grounded feeling. For others, it may take a few days to notice the full effects. Relief can last weeks or months. In some cases, repeat injections are needed.
You should plan to rest the day of the procedure and arrange a ride home, just in case you feel sleepy or lightheaded.
Is a Stellate Ganglion Block Worth the Risk?
Deciding whether a stellate ganglion block is worth the risk depends on your symptoms, your treatment history, and your overall goals for recovery. While there are some risks—like temporary side effects or, in rare cases, more serious complications—the procedure is generally safe when done by a trained medical professional.
For many people, especially those living with PTSD or severe anxiety, the potential relief is significant. A successful block can lead to a calmer nervous system, better emotional balance, and an improved ability to engage in therapy or daily life. If you’ve tried other treatments without success, this may be a valuable next step. As with any medical decision, it’s important to talk openly with your care team and weigh both the risks and benefits based on your personal needs.
Getting Help and Exploring Your Options
At Experience Structured Living, we offer a customized living experience for those with mental health conditions, and we know that true healing often requires a team effort. For individuals facing PTSD, anxiety, or chronic pain, treatments like the stellate ganglion block can be an important part of the recovery process. While we focus on structured mental health and addiction care, we also help guide our clients toward additional therapies that can support lasting wellness. We can sit down with you and discuss questions like “Is a stellate ganglion block dangerous?” and “What are the benefits of this procedure”?
That’s why we proudly refer clients to our partner, Thrive Medical Specialists, a trusted provider of stellate ganglion block procedures. Thrive is known for its advanced medical care, experienced providers, and deep understanding of trauma-related conditions. As a close partner of Experience Structured Living, we work hand-in-hand to make sure each person receives safe, effective care tailored to their needs.
If you think a stellate ganglion block might help you or someone you love, our team is here to provide guidance, answer your questions, and connect you with professionals who can help. You don’t have to face recovery alone. With Experience Structured Living and Thrive Medical Specialists on your side, real relief is possible. Reach out today to learn more.
FAQs: Is a Stellate Ganglion Block Dangerous?
Is the stellate ganglion block FDA-approved?
While the medication used in the injection is FDA-approved, the stellate ganglion block itself is considered an “off-label” use for conditions like PTSD. However, this practice is legal and widely accepted when performed by trained medical professionals.
How long does the stellate ganglion block procedure take?
The actual injection usually takes about 10 to 15 minutes. With preparation and recovery time included, most people are at the clinic for less than an hour.
Can you be awake during a stellate ganglion block?
Yes, patients are typically awake during the procedure. A local anesthetic is used to numb the area so you’ll feel minimal discomfort. Some clinics may offer light sedation if needed.
Does the stellate ganglion block injection hurt?
Most people report only mild discomfort during the injection. You might feel pressure or a brief stinging sensation, but the procedure is generally well tolerated.
How many stellate ganglion blocks will I need?
This varies from person to person. Some individuals experience long-term relief after one or two injections, while others may benefit from a series of treatments over time.
What should I do before and after the stellate ganglion block procedure?
Before the procedure, your doctor may ask you to avoid eating or drinking for a few hours. After the injection, you should rest for the day and avoid driving until the effects wear off.
Dr. Melden earned his Doctorate in Osteopathic Medicine at Philadelphia College Osteopathic Medicine and went to USC Presbyterian Hospital for his residency in Family Medicine. He then completed his Psychiatric residency at the University of California, Irvine and went to UCSD Geropsychiatry pursuing a fellowship. Dr. Melden has over 14 years of experience as a clinician specializing in treating child and adolescent, adult and geriatric clients. He has devoted his life to psychiatry in a variety of different treatment settings including in- patient and out-patient environments. He specializes in the psychiatric evaluation, complementary therapy approaches, and medical management of individuals suffering from mental illness. Currently, he maintains a private practice with Crownview Medical Group in Coronado and Carlsbad, California where he is CEO/President.
