Stellate Ganglion Blocks

Syringes and tubing used for Stellate Ganglion Block (SGB) treatment

Immediate & Durable

SGBs can provide immediate relief from symptoms of hypervigilance, PTSD, and severe anxiety, among other conditions

Results often last 2-6 months or longer

Rapid & Effective

SGBs are a quick procedure that can be administered in 15 minutes or less

%
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70-80%

of patients experience a decrease in symptoms of PTSD

Symptoms of anxiety may be reduced by more than

50%

Physician pointing to ultrasound imaging used for a stellate ganglion block.

What it looks like

A Stellate Ganglion Block targets sympathetic nerve clusters that affect the ‘fight or flight’ response and our bodies’ response to perceived danger

Injections of long-acting anesthetic are administered at C4 and C6 in the neck to temporarily block the stellate ganglion

Syringes and tubing used for Stellate Ganglion Block (SGB) treatment

Immediate & Durable

SGBs can provide immediate relief from symptoms of hypervigilance, PTSD, and severe anxiety, among other conditions

Results often last 2-6 months or longer

Rapid & Effective

SGBs are a quick procedure that can be administered in 15 minutes or less

70-80% of patients experience a decrease in symptoms of PTSD

Symptoms of anxiety may be reduced by more than 50%

Physician pointing to ultrasound imaging used for a stellate ganglion block.

What it looks like

A Stellate Ganglion Block targets sympathetic nerve clusters that affect the ‘fight or flight’ response and our bodies’ response to perceived danger

Injections of long-acting anesthetic are administered at C4 and C6 in the neck to temporarily block the stellate ganglion

What is a Stellate Ganglion Block (SGB)?

The Stellate Ganglion Block is also often referred to as SGB, sympathetic nerve reset, or sympathetic block. The procedure targets sympathetic nerve bundles in the neck – which affects the ‘fight or flight’ response and our bodies’ response to perceived danger. For some patients the procedure can provide significant relief from Post Traumatic Stress Disorder (PTSD) and may be helpful for some other conditions – with recent results supporting its use in reducing symptoms of anxiety.

The Procedure

  • The procedure involves an ultrasound-guided injection of long-acting anesthetic near a nerve cluster – the stellate ganglion – in the neck.
  • The procedure itself typically takes less than 30 minutes and patients should be able to resume their normal daily activities immediately after.
  • You may return for a second appointment on a subsequent day: Many patients experience significant relief from the block on one side only. Some will benefit after a block on the other side. The best likelihood of significant and durable results comes from blocks on both sides.
  • You can return for maintenance treatments as needed – with some patients receiving significant relief from even a single treatment, and others returning periodically.

Why Choose Stellate Ganglion Blocks?

Stellate Ganglion Blocks can provide immediate, significant and persistent relief in some cases. These blocks can be particularly useful for PTSD – providing immediate relief from symptoms for many patients which can last for days, weeks or months (and possibly indefinitely). Results appear to last for 2 to 6 months in many cases. The block procedure is short and cost-effective and you can return to your normal activities shortly after your appointment.

Why choose Wells Medicine?

We are experts in anesthesia including blocks of all kinds with a particular focus, here at Wells Medicine on the Stellate Ganglion Block, leveraging our experience with interventional mental health procedures for the benefits of our patients. We’re invested in treatments that are evidence-based, providing them in a safe and compassionate setting, and supporting your care. 

Exceptional Care that Makes a Difference

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I went to Wells Clinic today for a SGB. The procedure was performed with so much Care and expertise. Dr. Wells took precious time, extra time with me to ensure I got the most out of my treatment. I would give Dr. Wells & her staff 10 Stars if I could.

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After receiving an SGB shot and starting infusion therapy, I started to feel a noticeable difference both mentally and physically. The second SGB shot made me feel even better and significantly reduced my anxiety. My migraines have improved, and for the first time in years, I feel more hopeful about my future.

2024 05 22 Wells Medicine Quote Icon 04 c2

I was a bit nervous because the nerves are located in your neck. She put my mind at ease and the procedure was not painful at all, just a weird is the best way to describe it. Dr Wells is really thorough and caring. Great bedside manner and highly knowledgeable.

Next Steps

Book online to schedule an appointment now (We’ll follow up with more information)

Or contact us to discuss this treatment option further

More on Stellate Ganglion Blocks:

What is a Stellate Ganglion Block (SGB)?

A stellate ganglion block is procedure that involves injecting 3-5ml of a long-acting local anesthetic near the stellate ganglion, a cluster of nerves located in the neck. Performed by a skilled practitioner, the procedure involves the careful insertion of a needle under ultrasound guidance to ensure accuracy. The process is quick, with most sessions completed in under 30 minutes, allowing patients to return to their daily activities with minimal downtime. It is a cutting-edge solution for individuals seeking relief from Complex Regional Pain Syndrome (CRPS) of the upper extremity, post-traumatic stress disorder (PTSD), certain vascular conditions, and anxiety. This is a very old and well-studied block and has been used safely and successfully for pain conditions long before ultrasound was developed. Its benefits for mood began to be studied more than a decade ago.

How Does It Work?

For pain: The stellate ganglion plays a crucial role in regulating sympathetic nervous system outflow which affects the blood flow, temperature, and pain perception in the head, neck, and upper extremities. By blocking signals from this nerve cluster, SGB interrupts the pain cycle, providing effective relief for patients. 
 
For mood: The exact mechanisms underlying the efficacy of stellate ganglion block (SGB) in posttraumatic stress disorder (PTSD) are still being researched, but several theories have been proposed:

  1. Modulation of Sympathetic Nervous System: The stellate ganglion is a part of the sympathetic nervous system, which is involved in the body’s “fight, freeze, or flight” response. By blocking the activity of the stellate ganglion, SGB may reduce sympathetic nervous system hyperactivity observed in individuals with PTSD. This can lead to decreased arousal, anxiety, and alleviation of other PTSD symptoms.
  2. Alteration of Neurotransmitter Levels: SGB may influence the levels of neurotransmitters involved in PTSD. By modulating the release or activity of these neurotransmitters, SGB could potentially alleviate PTSD symptoms such as hyperarousal and intrusive thoughts.
  3. Normalization of Brain Activity: Functional imaging studies have shown abnormal activity in certain brain regions, such as the amygdala and prefrontal cortex, in individuals with PTSD. SGB may help normalize this activity by modulating neural circuits involved in fear processing and emotional regulation. Although we don’t have a verified pathway for how this happens yet. 
  4. Reduction of Neuroinflammation: There is evidence to suggest that neuroinflammation plays a role in the pathophysiology of PTSD. SGB may have anti-inflammatory effects, leading to reduced neuroinflammation and improvement in PTSD symptoms.
  5. Enhancement of Fear Extinction: Fear extinction is the process by which learned fear responses are diminished over time. SGB may enhance fear extinction by modulating synaptic plasticity mechanisms in the brain, facilitating the extinction of traumatic memories and reducing the severity of PTSD symptoms. This is facilitated by therapy in the days and weeks after a SGB. 
    Overall, while the exact mechanisms of action are still being elucidated, SGB appears to exert its therapeutic effects on PTSD through a combination of neurobiological and physiological mechanisms.
Benefits of SGB
  • Rapid relief: Many patients experience immediate or significant pain and PTSD symptom reduction following the procedure. The effects can be both immediate and profound, offering a window of relief that has been described as transformative by many patients.
  • Minimally invasive: SGB is performed on an outpatient basis, minimizing downtime and discomfort. Usually the right side SGB is enough for PTSD relief, but occasionally both sides need to be blocked for the best effects and a left side SGB can be done a day or two after the right side for increased effectiveness.
  • Enhanced quality of life: By managing pain and PTSD effectively, SGB empowers individuals to regain functionality and enjoy daily activities. Relief often lasts several weeks to months.
  • Innovative Approach: At the forefront of medical science, SGB offers hope where traditional treatments may have failed.
  • Versatility: Effective for a range of conditions, including PTSD, anxiety disorders, and various types of chronic pain.
SGB May Provide Relief For:
  • PTSD / Post-traumatic stress disorder
  • Severe anxiety
  • CRPS / Complex regional pain syndrome of the upper extremity
  • Vasoplegia of the upper extremity, or Raynaud’s syndrome
  • Phantom limb pain of the upper extremity
  • PHN / Postherpetic neuralgia that affects the head, face, chest, or neck
  • Traumatic brain injury
  • Long COVID
Risks and Side Effects

While SGB is generally safe, like any medical procedure, it carries some risks, including:
 
Expected: Temporary (<24 hours) hoarseness or difficulty swallowing, a slight drooping of the eyelid and face, and a redness to the eye on the same side of the face as the block – these effects are typically short-lived and resolve on their own.
            
Possible: Temporary minor bruising or soreness at the injection site, 

Rare complications: infection, nerve injury or damage, or esophageal puncture, allergic reactions to the local anesthetic, seizures, temporary decrease in heart rate and blood pressure, bleeding or hematoma formation
 
Remember, the effectiveness and suitability of SGB vary from person to person. It’s crucial to consult with a healthcare professional to discuss the potential benefits and risks based on individual health profiles. 

Alternatives to SGB

Depending on the condition being treated, alternative therapies may include medication management, physical therapy, nerve blocks, and cognitive-behavioral therapy. We believe in a comprehensive approach to wellness and encourage discussions on the best path forward for each individual. However, SGB stands out for its efficacy, minimal invasiveness, and rapid onset of relief.

Research

Recent studies have highlighted the effectiveness of SGB in treating not only physical pain but also psychological symptoms associated with PTSD. Research published in leading medical journals such as Pain Medicine and Journal of Pain Research underscores SGB’s role as a versatile and promising intervention in pain management and mood disorders.

References

Kirkpatrick K, Khan MH, Deng Y, Shah KB. A Review of Stellate Ganglion Block as an Adjunctive Treatment Modality. Cureus. 2023 Feb 19;15(2):e35174. doi: 10.7759/cureus.35174. PMID: 36949968; PMCID: PMC10029323.

Singh, Heena; Rajarathinam, Manikandan. Stellate ganglion block beyond chronic pain: A literature review on its application in painful and non-painful conditions. Journal of Anaesthesiology Clinical Pharmacology 40(2):p 185-191, Apr–Jun 2024. | DOI: 10.4103/joacp.joacp_304_22

Lynch JH, Mulvaney SW, Bryan CJ, Hernandez D. Stellate Ganglion Block Reduces Anxiety Symptoms by Half: A Case Series of 285 Patients. Journal of Personalized Medicine. 2023; 13(6):958.