We’ve all experienced that moment when a computer or smartphone begins to lag. Apps freeze, the screen stutters, and eventually, the entire system becomes unresponsive. Usually, the solution isn’t to buy a new device; it’s to perform a hard reset.

For many patients at Meeting Point Health, the human nervous system behaves in much the same way. When a person is subjected to chronic stress, trauma, or long-term illness, their “internal software” can get stuck in a high-alert loop known as sympathetic hyperactivity.

If you feel like you are constantly living in fight-or-flight mode, even when there is no immediate danger, your system hasn’t failed. It’s just stuck. This is where the stellate ganglion block (SGB) comes in. In this article, we are going to address what the stellate ganglion is, what SGB can treat, treatment expectations, and our most frequently asked questions. 

What is the Stellate Ganglion? 

Located in the neck, the stellate ganglion is a concentrated cluster of nerves that acts as a primary relay station for your sympathetic nervous system. It connects directly to the brain’s emotional and regulatory hubs, including the amygdala (the alarm center) and the hypothalamus (the command center).

When this station is over-stimulated, it creates a feedback loop of Nerve Growth Factor (NGF) and norepinephrine (adrenaline). This loop keeps your brain in a state of hyper-vigilance.

By precisely delivering a local anesthetic to this nerve cluster, SGB temporarily pauses these high-frequency stress signals. This “silence” allows the nervous system to downshift from survival mode into a state of metabolic recovery and physiological balance.

Who is a Candidate for a Stellate Ganglion Block?

While SGB has been a staple for pain management since the 1940s, clinicians are now using it to treat underlying conditions that have proven resistant to traditional medicine:

  • The Post-Viral Fog: For those struggling with Long-COVID, SGB can help resolve the debilitating fatigue and “brain fog” by improving cerebral blood flow and dampening systemic inflammation.
  • Trauma-Based Responses: SGB remains a breakthrough for PTSD and severe anxiety. By lowering the activity in the amygdala, it helps silence the constant “background hum” of irritability and hyper-awareness.
  • Neuropathic & Vascular Pain: From the intense discomfort of Complex Regional Pain Syndrome (CRPS) to the circulation issues of Raynaud’s phenomenon, SGB can help to “unstick” the nerves responsible for chronic pain signaling. 

Precision Matters: The MPH Difference

At Meeting Point Health, Dr. Stephen Matta utilizes advanced ultrasound guidance to visualize the nerve cluster in real-time. This ensures the anesthetic is delivered with millimeter precision, maximizing safety and effectiveness. 

A left and right-sided block are typically recommended for an optimal outcome. Some patients require multiple or repeat blocks depending on their symptoms. Procaine is the anesthetic of choice, because it possesses both anti-inflammatory and anti-microbial properties with a quicker onset and shorter duration of action. 

What Does the Reset Feel Like?

The word “block” can sound intimidating, but the experience is remarkably straightforward:

  1. The Procedure: First, dextrose is used locally to treat the vagus nerve and move vessels out of the way, then the procaine is placed.  Most patients describe the injection as a “quick pinch.” It takes only a few minutes. 
  2. The Immediate Effect: Some relief may be felt immediately. Patients report both physical relief and calmness following the procedure. For others, it may take more than one SGB. You may notice temporary side effects like a droopy eyelid or a hoarse voice. These side effects are temporary and often short-lived. 
  3. The Recovery: We ask you to rest the day of the procedure, but most patients are back to their normal routine the following morning.

Frequently Asked Questions

  1. Is a Stellate Ganglion Block dangerous? SGB is considered a very safe, minimally invasive outpatient procedure. Because we utilize ultrasound guidance, Dr. Matta can visualize the blood vessels and nerves in real-time, significantly reducing the risk of complications. Most side effects, such as a temporary droopy eyelid (Horner’s Syndrome), a hoarse voice, or a “lump in the throat” sensation, are actually indicators of a successful block and typically resolve within a few hours.
  2. Who should NOT get a Stellate Ganglion Block? While SGB is highly effective for many, it is not suitable for everyone. Contraindications include:
  • Active Infection: If you have an active systemic infection or an infection at the injection site.
  • Recent Myocardial Infarction: Those who have had a very recent heart attack.
  • Certain Bleeding Disorders: Patients on high-dose blood thinners or those with severe coagulopathy may need to consult with their specialist first.
  • Glaucoma: In some specific cases, the temporary changes in eye pressure may be a concern.
  • Pregnancy: Generally avoided unless the benefits significantly outweigh the risks, as discussed with your OB-GYN.
  1. Is the procedure painful? Most patients describe the sensation as a quick pinch. We focus on a comfortable, anxiety-free experience and offer various options to ensure you feel at ease throughout the process.
  2. How long do the effects of a stellate ganglion block last? The duration varies. Some patients feel an immediate shift that lasts for months, while others with more deep-seated underlying issues may require a series of 2 to 4 treatments to achieve a lasting state of equilibrium.

Is It Time to Reset?

Living in a constant state of high alert or suffering with your symptoms is exhausting, but it doesn’t have to be your permanent reality. Whether you are battling the lingering effects of a virus, the heavy weight of PTSD, or chronic physical pain, a Stellate Ganglion Block might be the reset your system is searching for. Schedule your discovery call today to see if SGB is right for you. 

Written by Amanda Bates, RN and medically reviewed by Dr. Stephen Matta.