Post-traumatic stress disorder is one of the most challenging conditions in modern medicine. Veterans, survivors of assault, first responders, and patients who have lived through serious accidents or medical events often carry symptoms that reshape every part of daily life: hypervigilance, sleep disruption, intrusive memories, emotional numbing, anxiety, and a body that simply will not stand down.
Therapy and medication remain foundational to PTSD care, and for many patients they help significantly. For others, progress stalls. The stellate ganglion block, often shortened to SGB, has emerged as a procedural option that can help calm the underlying physiology of PTSD and make other treatments more effective. At Evolve Medical, we offer SGB for carefully selected patients as part of a broader plan for trauma recovery.
How the Body Holds Trauma
PTSD is sometimes described as a memory disorder, but it is more accurately a nervous system disorder. After a traumatic experience, the sympathetic nervous system, the system responsible for fight-or-flight responses, can remain stuck in an activated state long after the danger has passed. This is why PTSD patients often experience a racing heart, shallow breathing, hypervigilance, sleep disruption, irritability, and a sense that the body is constantly braced for impact.
Talk therapies and medications can address pieces of this puzzle. But many patients describe a persistent baseline of physiological tension that resists those approaches. SGB targets that physiological layer directly.
What the Stellate Ganglion Block Does
The stellate ganglion is a cluster of sympathetic nerves located in the lower neck. It serves as a relay point for sympathetic signaling traveling between the brain and the body. By placing a small amount of local anesthetic near this cluster of nerves, a stellate ganglion block temporarily interrupts the sympathetic signals passing through.
Although the local anesthetic itself wears off within hours, research suggests the block can produce a lasting reset of autonomic regulation. Patients often report a sense of calm, easier breathing, improved sleep, and reduced reactivity to triggers in the days and weeks that follow.
The Evidence Base
SGB has been used for decades for pain management. Its application for PTSD has grown over the past 15 years, with much of the early work driven by physicians treating active-duty military members and veterans. Multiple case series, observational studies, and a growing number of randomized trials have examined SGB for PTSD symptoms, with several studies showing meaningful reductions in symptom severity.
While not every study has shown a benefit, the consistent pattern across the literature supports SGB as a reasonable option for patients with significant sympathetic symptoms who have not responded fully to other treatments. Importantly, SGB is not positioned as a stand-alone cure. It is a tool that may make therapy more accessible, sleep more restorative, and daily life more manageable.
Symptoms That May Improve
Patients considering SGB for PTSD often present with a mix of physiological and emotional symptoms. The procedure tends to influence the physiological layer most directly, with downstream effects on emotional and cognitive symptoms. Patients commonly report improvement in:
- Hypervigilance and a sense of being constantly on alert.
- Sleep difficulties, including trouble falling asleep and frequent waking.
- Anxiety, panic, and reactivity to triggers.
- Irritability and emotional volatility.
- Nightmares and intrusive memories.
- Concentration and focus.
- Physical symptoms like a racing heart, muscle tension, and shallow breathing.
What to Expect From the Procedure
An SGB is an outpatient procedure performed in our office. You will lie comfortably on your back with your neck slightly extended. The injection site is cleansed, and a small amount of local anesthetic numbs the skin. Using ultrasound guidance to visualize the relevant anatomy in real time, Dr. Sarij carefully positions a thin needle near the stellate ganglion and delivers a precise dose of local anesthetic.
The procedure itself usually takes about 15 to 20 minutes. Immediately afterward, you will likely notice expected signs that the block has worked on the treated side: a drooping eyelid, a smaller pupil, nasal congestion, a warm sensation in the arm, and possibly a hoarse voice. These effects are temporary and resolve over a few hours.
After a short observation period, you go home. We ask that someone drive you and that you avoid eating or drinking for a couple of hours as a standard precaution.
Combining SGB With Therapy
Many of our patients describe SGB as a window. With the autonomic nervous system temporarily quieter, talk therapy, EMDR, somatic work, and other trauma-focused approaches can land in a way they could not before. Sleep often improves. Triggers feel less overwhelming. Daily life becomes more navigable.
We strongly encourage patients pursuing SGB to maintain or initiate work with a qualified mental health professional. SGB is not a substitute for trauma therapy. It is a tool that often makes that therapy more accessible and effective. For patients also dealing with depression or chronic mood symptoms, ExoMind and peptide therapy may be considered as part of a broader mental wellness plan.
Safety and Candidacy
When performed by a trained physician using ultrasound guidance, SGB has a strong safety profile. The most common effects, including the temporary signs noted above, are expected and resolve on their own. Serious complications are uncommon.
SGB is not appropriate for every patient. Certain anatomical considerations, bleeding disorders, current infections at the injection site, and specific medical conditions can make it unsafe. A thorough consultation reviews your full medical history, current medications, prior treatments, and your trauma history. The goal is to determine whether SGB is the right next step and to integrate it within a treatment plan tailored to your situation.
Key Takeaways
- PTSD involves a sympathetic nervous system that remains activated long after the traumatic event.
- SGB temporarily quiets sympathetic signaling at the stellate ganglion in the lower neck, with effects that often last well beyond the procedure itself.
- Patients commonly report improvement in hypervigilance, sleep, anxiety, and reactivity to triggers.
- SGB is best used as part of a broader trauma recovery plan that includes qualified mental health support.
- Candidacy is determined through a thorough medical consultation focused on safety and fit.
Frequently Asked Questions
Multiple case series, observational studies, and a growing number of randomized trials have examined SGB for PTSD symptoms, with several studies showing meaningful reductions in symptom severity. While not every study has shown a benefit, the consistent pattern across the literature supports SGB as a reasonable option for patients with significant sympathetic symptoms who have not responded fully to other treatments. Individual response varies, and SGB is not a stand-alone cure.
No. SGB is positioned as a tool that may make therapy more accessible and effective, not a replacement for it. Many patients describe SGB as a window: with the autonomic nervous system temporarily quieter, talk therapy, EMDR, somatic work, and other trauma-focused approaches can land in ways they could not before. We strongly encourage patients pursuing SGB to maintain or initiate work with a qualified mental health professional.
Some patients experience lasting improvement from a single block. Others benefit from a second block, performed on the opposite side or as a repeat treatment, depending on the response. The protocol is determined after a thorough evaluation of your trauma history, current symptoms, and overall health profile.
Yes. While much of the early research on SGB for PTSD focused on veterans and active-duty military, the procedure is also used for patients whose PTSD stems from other sources, including assault, serious accidents, medical events, first responder work, and other traumatic experiences. The underlying physiology of a dysregulated sympathetic nervous system is similar regardless of the source of the trauma.
The procedure typically takes 15 to 20 minutes and is performed in the office under ultrasound guidance. A small amount of local anesthetic numbs the skin first. Immediately afterward, you will likely notice expected signs that the block has worked on the treated side: a drooping eyelid, a smaller pupil, nasal congestion, a warm sensation in the arm, and possibly a hoarse voice. These effects are temporary and resolve over a few hours.
When performed by a trained physician using ultrasound guidance, SGB has a strong safety profile. Serious complications are uncommon. The most common effects are temporary and resolve on their own. SGB is not appropriate for every patient. Certain anatomical considerations, bleeding disorders, current infections at the injection site, and specific medical conditions can make it unsafe, which is why a thorough consultation is essential.
Schedule a Consultation at Evolve Medical
Evolve Medical is a physician-led regenerative and functional medicine practice with two Long Island locations in Deer Park and Dix Hills. To learn whether this therapy is appropriate for your situation, schedule a consultation with Dr. Hasib M. Sarij and the Evolve Medical team. Every treatment plan is built around a thorough evaluation of your health history, current symptoms, and personal goals.
(631) 253-1313
Medical disclaimer: This article is for educational purposes only and is not intended as medical advice, diagnosis, or treatment. Always consult a qualified physician about your specific health concerns.
