A stellate ganglion block (SGB) is a specialized injection used to treat chronic pain and nerve-related conditions affecting the head, neck, chest, and upper extremities. It works by targeting the stellate ganglion — a collection of nerves in the neck that are part of the sympathetic nervous system. Many patients ask: what is a stellate ganglion block, and how can it help relieve pain?
What is the stellate ganglion?
The stellate ganglion is a bundle of sympathetic nerves located in the front of the neck near the cervical spine. These nerves help regulate pain signals, blood flow, sweating, and the body’s stress response. When the stellate ganglion becomes overactive or irritated, it can contribute to chronic pain and neurological symptoms.
What is a stellate ganglion block?
A stellate ganglion block is an injection of local anesthetic (sometimes combined with anti-inflammatory medication) near the stellate ganglion. The goal is to temporarily block abnormal nerve signals, reduce pain, and reset the nervous system’s response. The procedure is minimally invasive and typically performed under imaging guidance for accuracy and safety.
What conditions are treated with a stellate ganglion block?
SGB is commonly used to treat conditions involving nerve pain or sympathetic nervous system dysfunction, including:
- Chronic neck and upper back pain
- Complex Regional Pain Syndrome (CRPS)
- Nerve pain in the arm or shoulder
- Post-traumatic stress disorder (PTSD)
- Chronic headaches or migraines
- Accident-related nerve injuries
- Circulatory issues affecting the upper extremities
How does a stellate ganglion block work?
By blocking sympathetic nerve activity, SGB can:
- Interrupt abnormal pain signals
- Improve blood flow to the head, neck, and arms
- Reduce inflammation and nerve hypersensitivity
- Calm the body’s stress response
Some patients experience immediate relief, while others notice improvement over several days.
What does a stellate ganglion block feel like?
During the procedure, patients may feel mild pressure at the injection site. Temporary side effects can include:
- Warmth or heaviness in the arm
- Drooping eyelid or redness in the eye (temporary Horner’s syndrome)
- Hoarseness or a sensation of throat fullness
These effects usually resolve within a few hours and indicate the block is working.
Is a stellate ganglion block safe?
When performed by an experienced pain management specialist, SGB is considered safe and effective. Imaging guidance significantly reduces risks. Your doctor will review your medical history to determine if this treatment is appropriate for you.
How long does relief from a stellate ganglion block last?
Relief can last from days to months, depending on the condition being treated. Some patients benefit from a series of injections for longer-lasting results.
When should you consider a stellate ganglion block?
You may be a candidate for SGB if:
- You have chronic nerve pain not responding to conservative treatments
- Your pain began after a car accident or workplace injury
- You have symptoms of CRPS or PTSD
- Your pain significantly affects daily life or sleep
Expert stellate ganglion block treatment
At Allied Neurology & Interventional Pain Practice, Dr. Dariusz Nasiek, MD, performs stellate ganglion blocks using advanced imaging guidance to ensure precision and safety. With over 35 years of experience, he provides personalized, non-surgical solutions for complex pain and neurological conditions.
Interested in a stellate ganglion block? Call 201-894-1313 or schedule your consultation today to see if this treatment is right for you.
