A 2024 comprehensive review found SGB efficacy for PTSD symptoms ranges from 70–83% of treated patients achieving clinically significant positive outcomes across the full range of existing studies
Stellate Ganglion Block in West University Place, TX: Rapid Relief for PTSD, Anxiety, and Trauma
As of 2025, West University Place holds the distinction of being the wealthiest suburb in Texas — average household income exceeding $409,000, 85% of adults holding bachelor’s degrees, streets named after authors by a Rice University student in 1917, and a community that has maintained its small-town character four blocks from one of the world’s largest medical complexes. The people who live here don’t make healthcare decisions lightly. When PTSD, anxiety, or trauma has been the clinical problem that careful, systematic treatment hasn’t resolved — when the nervous system keeps running at high alert despite everything — stellate ganglion block reaches what conventional approaches don’t. Dr. Ho, board-certified anesthesiologist and former pediatrician, performs this ultrasound-guided procedure at Catalyst Health & Wellness, with our South Loop clinic at 6300 West Loop S minutes from West U’s borders. Three Houston locations, open 5am–9pm, seven days a week.
West University Place Beyond the Battlefield
West U’s proximity to the Texas Medical Center — and the high proportion of physicians, researchers, nurses, and healthcare administrators who call this community home — creates a population that reads clinical literature as a matter of professional practice. For that population, SGB’s most compelling recent development isn’t the military research alone. It’s the recognition that the same mechanism produces PTSD in clinical populations far beyond combat veterans.
Columbia University researchers at the Vagelos College of Physicians and Surgeons launched a pilot randomized trial — NCT04582396 — specifically studying stellate ganglion block for PTSD and cardiac anxiety in cardiac arrest survivors. Every year, approximately 500,000 people in the United States experience sudden cardiac arrest. A significant subset develop PTSD: the persistent hypervigilance, intrusive memories of the event, sleep disruption, and emotional reactivity that define post-traumatic stress — triggered not by combat, but by a medical emergency in their own chest. The Columbia trial, designed to assess SGB’s feasibility for reducing cardiac anxiety, PTSD symptoms, and sleep disturbance in this population, reflects the growing recognition that PTSD’s biology — stellate ganglion-mediated sympathetic overactivation — is the same regardless of what triggered it: combat, assault, natural disaster, industrial accident, or a cardiac event in a hospital room.
For West U’s medically literate community — where cardiac surgeons, cardiologists, and critical care nurses live alongside researchers and attorneys who understand the clinical literature — this expansion of SGB’s evidence base into medical trauma populations is directly relevant. PTSD doesn’t require a combat uniform. The stellate ganglion doesn’t care about the origin of the overactivation. The procedure addresses the biology.
What is Stellate Ganglion Block?
The stellate ganglion — the sympathetic nerve cluster formed by the fusion of the inferior cervical and first thoracic ganglia at the base of the neck — is the anatomical relay node between the brain’s central autonomic network and the sympathetic nerve supply of the head, neck, upper body, and cardiovascular system. Its connections to the amygdala, hypothalamus, prefrontal cortex, and insula make it the chokepoint between the brain’s threat-detection centers and the body’s physiological stress response.
Research consistently shows powerful results:
What Our Patients Say
How Stellate Ganglion Block Works
For West U's medically literate population — many of whom understand the amygdala-sympathetic axis from professional training — the mechanism deserves precise explanation.
Resetting the Sympathetic Nervous System
The Columbia cardiac arrest PTSD trial's framing is clinically precise: cardiac arrest survivors develop "cardiac anxiety and PTSD symptoms" driven by the same sympathetic overactivation mechanism as any other trauma-triggered PTSD — "the stellate ganglion block injection to block the nerves located on either side of the voice box in the neck" temporarily interrupts that overactivation in any population. The mechanism: trauma — whether combat, assault, or a cardiac arrest — elevates nerve growth factor, which drives sympathetic nerve sprouting and sustained norepinephrine production, which maintains the amygdala in a state of threat-readiness that is no longer appropriate to the patient's actual environment. SGB temporarily blocks the stellate ganglion's conduction, allowing NGF to normalize, norepinephrine to drop, and the amygdala to recalibrate toward a pre-trauma baseline.
The clinical implication of the Columbia study is significant: it demonstrates that the entire framing of SGB as a "military treatment" has been a specialty-specific limitation, not a biological one. The stellate ganglion is a universal anatomical target; the sympathetic mechanism is a universal biology. West U's population of medical professionals, researchers, and trauma survivors from every civilian context represents precisely the patient population that the cardiac arrest PTSD literature extends SGB to reach.
Reducing Brain Inflammation and Hyperactivity
Beyond the sympathetic reset, SGB produces downstream recalibration of the amygdala's threat-processing function. In PTSD — regardless of trauma source — the amygdala is chronically hyperresponsive: treating neutral stimuli as threatening, maintaining intrusive re-experiencing, and driving the emotional reactivity that makes clinical work, family life, and genuine recovery so difficult to access simultaneously. VA neuroimaging researchers have documented measurable changes in amygdala activity following SGB using functional imaging, providing direct neurobiological evidence for the mechanism underlying the symptom improvements patients report.
The Columbia trial specifically assessed health behaviors — physical activity and sleep duration measured objectively by wrist-worn accelerometer — alongside PTSD and cardiac anxiety, recognizing that these behavioral markers reflect the amygdala's calmer baseline as much as self-reported symptoms do. For West U patients managing demanding professional careers and community involvement alongside trauma-related symptoms, the objective behavioral improvement data is the most pragmatically relevant evidence.
Conditions We Treat with Stellate Ganglion Block Near West University Place
SGB addresses the stellate ganglion-mediated sympathetic dysregulation across a range of conditions. At Catalyst Health & Wellness, we offer SGB for:
PTSD
Rapid relief from hyperarousal, hypervigilance, and trauma symptoms
Read MoreAnxiety Disorders
Reducing the physical manifestations of severe anxiety
Read MorePanic Disorder
Calming the fight-or-flight response that drives panic attacks
Read MoreCombat-Related Trauma
Extensively studied in military populations with strong results
Read MoreComplex Trauma
Addressing symptoms from prolonged or repeated traumatic experiences
Read MoreTrauma with Physical Symptoms
Especially effective when anxiety manifests physically
Read MoreSGB integrates powerfully with Catalyst's other treatments. Many West U-area patients combine SGB with ketamine therapy, Spravato, or TMS for comprehensive treatment of complex presentations.
Your Stellate Ganglion Block Journey at Catalyst Health & Wellness
Every step has been designed for clinical precision and genuine accessibility for West U patients minutes from the South Loop clinic.
Step 1: Free Phone Consultation
No cost, no commitment. A clinical team member discusses your full history — including medical trauma history if applicable — and gives you an honest clinical assessment of whether SGB is appropriate for your situation.
Step 2: Medical Evaluation
Dr. Ho conducts a thorough pre-procedure evaluation: medical history — including cardiac history for patients with relevant backgrounds — current medications, prior procedures, and contraindication review.
Step 3: Day of Procedure
Budget two to three hours. Arrange transportation — post-procedure driving isn’t advisable. Comfortable clothing with accessible collar area. Normal eating unless instructed otherwise.
Step 4: The SGB Procedure
Dr. Ho uses real-time ultrasound imaging to visualize the stellate ganglion and surrounding anatomy — blood vessels, nerves, tissue planes — before placing the needle. Skin is numbed first. The anesthetic is delivered under continuous imaging guidance. The injection takes approximately 15–20 minutes. Warmth, slight hoarseness, or a sense of physical release confirm the block is working.
Step 5: Recovery & Observation
One to two hours of monitored recovery follows. Temporary Horner syndrome effects — drooping eyelid, hoarseness, warmth on the treated side — indicate successful stellate ganglion interruption and resolve within hours. Our team remains present throughout.
Step 6: Assessing Response & Follow-Up
Changes typically emerge within hours to days. Our team follows up to track response and determine next steps: a second procedure two weeks later, maintenance scheduling, or complementary treatment options at Catalyst.
The Science Behind Stellate Ganglion Block
A systematic review published in Chronic Stress examined 17 published studies on SGB for psychiatric disorders, finding preliminary evidence supporting feasibility for treating sympathetic nervous system dysregulation conditions. Improvements were observed within 5 minutes and lasted one month or longer.
The 2020 randomized controlled trial in JAMA Psychiatry enrolled 113 active-duty service members across three military hospitals. Two SGBs two weeks apart produced a mean PTSD symptom reduction of −12.6 points versus −6.1 for sham — establishing Level 1B clinical evidence.
The Columbia University cardiac arrest PTSD pilot trial (NCT04582396) extended the SGB evidence base specifically to cardiac arrest survivors — a medically sophisticated, non-military population in which PTSD is well-documented but chronically undertreated. The trial assessed SGB plus psychoeducation against psychoeducation alone, measuring cardiac anxiety, PTSD symptoms, and objective health behaviors (physical activity and sleep duration via accelerometer) over four weeks post-discharge. The trial’s design reflects Columbia Vagelos researchers’ judgment that the same stellate ganglion mechanism that reduces combat PTSD produces the same biological reset in patients whose PTSD was triggered by a medical emergency.
Key research findings:
- Columbia University Vagelos researchers extended SGB’s evidence base to medical trauma PTSD — cardiac arrest survivors — reflecting the biological universality of the stellate ganglion mechanism across trauma types
- The 2020 JAMA Psychiatry RCT established Level 1B evidence — the highest clinical standard yet achieved for SGB in PTSD
- 70–83% of treated patients achieve clinically significant positive outcomes — versus 30–40% for standard PTSD treatments
- Effects appear within minutes to hours and typically last one month or longer; the 2025 Uniformed Services University retrospective study confirmed 96% improvement at six-month follow-up
Why Choose Catalyst Health & Wellness for Stellate Ganglion Block in West University Place
01
Led by Dr. Ho – Anesthesiology Expertise
Catalyst's South Loop clinic at 6300 West Loop S is accessible from West University Place in under 10 minutes. The physician performing every procedure holds board certification in anesthesiology — the specific credential that covers nerve block anatomy, ultrasound guidance, and clinical management of local anesthetic delivery in complex anatomical regions. For West U's medical community, which evaluates specialists by credential alignment with procedural requirements, that distinction between anesthesiology training and other specialty training is the clinically relevant one.
02
Ultrasound-Guided Precision
The Columbia cardiac arrest PTSD trial protocol specifies “injection of local anesthetic to block the nerves” with imaging guidance. Every SGB at Catalyst uses real-time ultrasound — direct visualization of the stellate ganglion and surrounding anatomy before needle placement. This is the procedural standard across the most rigorous published research, and the only approach Dr. Ho uses.
03
Whole-Person Approach
West U patients include both healthcare providers experiencing secondary trauma and individuals who’ve survived traumatic medical events themselves. Our team engages with the full clinical picture regardless of trauma type: combat, occupational, medical, or personal. Treatment plans are built around your complete history and coordinated with existing cardiac, psychiatric, or primary care providers.
04
Extended Hours & Flexible Scheduling
Medical Center physicians, nurses, and researchers manage shift-based and on-call schedules that rarely align with standard clinical windows. Our 5am to 9pm hours, Monday through Sunday at all three Houston locations, accommodate those schedules. Pre-dawn appointments before rounds, evening sessions after call, weekend procedures — all available.
05
Comprehensive Treatment Options
SGB works best as part of a comprehensive approach to trauma recovery. We offer additional treatments that can complement your care:
IV Ketamine Therapy
Rapid relief for PTSD, depression, and anxiety
IM Ketamine Therapy
Intramuscular ketamine for those who prefer this method
Spravato Treatment
FDA-approved nasal esketamine for treatment-resistant depression
TMS Therapy
Non-invasive brain stimulation for depression and OCD
Many patients find that combining SGB with ketamine therapy produces the most comprehensive relief from trauma symptoms.
06
Safe, Comfortable Environment
We understand that people with trauma need to feel safe. Every detail of our treatment environment has been designed with your comfort in mind. Our staff is trained in trauma-informed care, and we move at your pace throughout the entire process. You’ll never be rushed or pressured.
Getting Started with Stellate Ganglion Block in West University Place
West U was built by people who named the streets after authors, maintained their independence from annexation for a century, and built a community where quality is the organizing principle. That same principle applies to mental health care — and increasingly, to the evidence base for trauma treatment. SGB is now recognized across combat medicine, cardiac medicine, and civilian PTSD populations as a biologically coherent intervention for the same sympathetic overactivation regardless of how it was triggered. It’s available minutes from your front door.
Call (713) 772-5315 for your free consultation. We’ll engage with your clinical picture at the level you bring to it — including medical trauma history if relevant — and give you an honest assessment of whether SGB makes sense for your situation. No charge, no pressure, complete confidentiality.
Monday-Sunday, 5am-9pm
Free consultation
Rapid relief
Three Houston locations
Expert anesthesiology care
Commonly Asked Questions
Get Help NowHow quickly does stellate ganglion block work?
Many patients notice improvement within days of the procedure, and some experience relief within minutes. Research shows that effects can appear within 5 minutes and last a month or longer. This rapid onset is one of SGB’s most remarkable features, especially for people who’ve been suffering with trauma symptoms for years.
Is stellate ganglion block safe?
Yes, SGB has been performed safely since the 1920s for various conditions. The procedure has a well-established safety profile with decades of clinical use. Common temporary effects include drooping eyelid, hoarse voice, and warmth on the treated side—all of which resolve within hours. Dr. Ho’s expertise as an anesthesiologist and use of ultrasound guidance ensures the highest safety standards.
Does the procedure hurt?
Most patients experience minimal discomfort. You’ll feel a small pinch from the initial numbing injection, followed by pressure as the medication is administered. The procedure itself takes only minutes, and most patients tolerate it very well. Dr. Ho’s gentle technique and experience help ensure your comfort.
How many SGB treatments will I need?
Many patients experience significant improvement after one or two treatments. Research protocols typically involve two SGBs administered two weeks apart. Some patients benefit from additional treatments over time. We’ll assess your response and recommend a treatment schedule based on your individual results.
How long do the effects last?
Effects typically last one month or longer, with some patients experiencing sustained improvement for many months. A 2025 study found that 96% of patients maintained significant improvement at 6-month follow-up. If symptoms return, the procedure can be repeated.
Can I combine SGB with other treatments?
Yes, many patients find that SGB works best as part of a comprehensive treatment approach. Combining SGB with ketamine therapy, for example, can provide both rapid sympathetic nervous system reset and enhanced neuroplasticity for processing trauma. SGB may also make traditional trauma therapy more tolerable and effective.
Do I need to talk about my trauma during treatment?
No. Unlike trauma-focused therapies that require detailed discussion of traumatic events, SGB works on the biological mechanisms underlying PTSD symptoms. You can share as much or as little as you’re comfortable with. The procedure addresses the physical hyperarousal component of trauma without requiring you to revisit painful memories.
Will insurance cover stellate ganglion block for PTSD?
Coverage varies by insurance plan. SGB for PTSD may be covered by some insurers, particularly when documented as treatment for a recognized condition with failed conventional treatments. We can help verify your benefits and discuss payment options during your consultation.
Our Locations
Blog & insight
Insights on Healing, Growth, and Mental Wellness
June 13, 2026
FAQ: Common Questions About Ketamine Treatment Answered
If you've been researching ketamine therapy in Houston, chances are you've come across a lot of conflicting information. One article calls it a miracle cure. Another paints it as a risky party drug. Somewhere in between sits the truth, and you deserve straightforward answers before making any decision about your mental health or chronic pain…
June 10, 2026
Can Ketamine Therapy Help with Both Depression and Anxiety?
If you've spent years battling depression only to find anxiety creeping in alongside it (or vice versa), you're not imagining the connection. These two conditions show up together far more often than people realize, and the overlap can make recovery feel like trying to untangle a knot that keeps tightening. Traditional antidepressants and anti-anxiety medications…
June 7, 2026
Neuropathic Pain and Ketamine: Relief When Nerve Pain Won’t Quit
If you live with neuropathic pain, you already know it doesn't behave like ordinary pain. It burns when nothing touched you. It shocks down your leg while you're sitting still. It turns the brush of a bedsheet into something sharp. And the medications your doctor prescribed, the gabapentin, the duloxetine, maybe even opioids, take the…
Make an Appointment
Our mission is to empower individuals to overcome life’s challenges through professional psychological support.