Living in a Constant Alarm State: A Case Report on Stellate Ganglion Block for PTSD

shutterstock 1023556117

Patient Case Report • PTSD • Stellate Ganglion Block

Silencing the noise: finding calm after years of living with PTSD

How a Stellate Ganglion Block helped one man step back from the edge of autonomic overload — and begin to live again

20+
Years of symptoms
68
Pre-treatment PCL score
4 wks
To meaningful improvement
Significant improvement
D

Daniel — Age 46, South West England

Civil Engineer • Complex childhood trauma • Self-pay patient

PTSD & autonomic dysregulation
Hypervigilance & hyperarousal
Depersonalisation features
Significant improvement post-SGB

A man carrying decades of unprocessed trauma

Daniel, a 46-year-old civil engineer from the South West of England, had been living in the shadow of trauma for most of his adult life. His childhood had been marked by significant adversity — the early loss of his father, exposure to a volatile home environment, and witnessing the emotional and physical abuse of a parent. Many of the memories from this period remained fragmented and suppressed; he acknowledged that he had spent years avoiding confronting them.

By the time he sought specialist input, the cumulative toll of these early experiences was manifesting across every dimension of his life. He described a persistent, heavy sense of emotional disconnection from the people around him. He felt foggy, overwhelmed, and unable to fully concentrate. A constant undercurrent of hyperarousal left him feeling perpetually on edge — reactive, irritable, and unable to switch off. At times, he experienced unsettling episodes of depersonalisation: a strange detachment from his own sense of self and surroundings.

He had been in regular weekly counselling, which he found supportive, but despite this ongoing engagement, his symptoms remained persistent and disabling. He had not yet undertaken structured trauma-focused therapies such as EMDR or PTSD-directed CBT. He had previously trialled SSRIs without benefit, and was not on any regular psychotropic medication. His only medical history of note was well-controlled asthma.

A previous GP assessment had identified anxiety and OCD traits. A specialist consulted about his depersonalisation symptoms had noted possible features of depersonalisation/derealisation but had not recommended specific treatment at that stage. Daniel had not received a formal PTSD diagnosis prior to this referral.

He came to PainSpa specifically to explore the emerging role of Stellate Ganglion Block (SGB) in the management of PTSD — a treatment he had researched independently and wished to discuss with a specialist.


What the PTSD checklist revealed

Prior to his initial consultation, Daniel completed the standardised PTSD Checklist (PCL). His responses painted a clear and consistent picture: significant trauma-related symptom burden spanning all five major PTSD symptom clusters. Below is a summary of how his symptoms grouped — a profile that is characteristic of patients with prominent autonomic dysregulation underpinning their PTSD.

Cluster 1 — Re-experiencing
Intrusion symptoms
  • Recurring distressing memories and images of past trauma
  • Disturbing dreams related to past experiences
  • Flashback episodes — feeling as though trauma is happening again
Cluster 2 — Avoidance
Avoidance & suppression
  • Actively avoiding thoughts or feelings related to past trauma
  • Avoiding situations or activities that act as reminders
  • Difficulty recalling important aspects of traumatic events
Cluster 3 — Mood & Cognition
Emotional & cognitive effects
  • Emotional numbness and disconnection from others
  • Loss of interest in previously enjoyed activities
  • A sense that the future feels foreshortened or uncertain
Cluster 4 — Arousal & Reactivity
Hyperarousal symptoms
  • Persistent hypervigilance — constantly watchful and on guard
  • Heightened startle response
  • Irritability, sleep disturbance, difficulty concentrating

68
Total pre-treatment PCL Score — Severe
A score above 44 is indicative of probable PTSD. Daniel’s score of 68 out of a possible 85 reflected severe symptom burden, with multiple items rated as “Quite a bit” or “Extremely” — particularly emotional detachment, hypervigilance, and trauma-triggered distress.

A carefully structured, stepwise approach

Dr Krishna’s approach centres on a thorough assessment followed by a transparent, evidence-informed discussion — never a one-size-fits-all recommendation. For Daniel, this meant ensuring he had a full understanding of the neurobiology of PTSD, realistic expectations for what SGB could and could not achieve, and a clear plan for what would come next.

Initial Consultation (Telephone)
Comprehensive assessment & formulation
Dr Krishna conducted a detailed telephone consultation, taking a thorough history of Daniel’s presenting symptoms, psychological background, and previous treatment experiences. He reviewed the PCL checklist responses and formulated a clinical impression consistent with trauma-related autonomic dysregulation. The role of the sympathetic nervous system in perpetuating PTSD symptoms was explained in depth, providing Daniel with a clear framework for understanding his own experience.
Pre-procedure discussion
Honest expectation-setting before proceeding
Dr Krishna took care to ensure Daniel understood both the potential benefits and the limitations of SGB. It was made clear that the procedure does not erase traumatic memories, that 30–40% of patients may not experience significant benefit, and that psychological therapy — not SGB — remains the primary treatment for PTSD. SGB was presented as a potential enabler: a way of reducing physiological noise sufficiently to allow more effective engagement with trauma-focused psychotherapy.
Procedure
Bilateral Stellate Ganglion Block under ultrasound guidance
Daniel proceeded with bilateral SGB injections (one side at a time), performed by Dr Krishna under real-time ultrasound guidance to ensure accuracy and safety. Local anaesthetic was injected around the stellate ganglion to temporarily block sympathetic signalling. Expected transient side effects — including Horner’s syndrome, facial flushing, and mild hoarseness — were discussed in advance and resolved within a few hours as anticipated.
Four-Week Follow-Up
Significant and meaningful improvement reported
At his follow-up consultation approximately four weeks post-procedure, Daniel reported striking and clinically significant improvements across multiple domains. The noisy, relentless quality of his intrusive thoughts had diminished. He felt calmer, less panicky, and was no longer in a constant state of hyperarousal. His confidence — both at work and socially — had improved noticeably. He had returned to the gym and was enjoying it. He had also significantly reduced his alcohol consumption and was eating more consistently.

Four pillars of PTSD intervention at PainSpa

Managing PTSD effectively requires more than a single treatment. Dr Krishna’s approach to patients like Daniel is grounded in a structured, multi-layered framework that respects the complexity of trauma and places the patient at the centre of every decision.

1
Deep clinical understanding
A thorough, unhurried assessment of the patient’s symptom history, psychological background, and previous treatments — establishing what is driving the symptoms before any intervention is considered.
2
Precision autonomic intervention
Where appropriate, SGB delivered under real-time ultrasound guidance to precisely target the stellate ganglion — temporarily interrupting the sympathetic overactivity that perpetuates PTSD symptoms.
3
Transparent expectation-setting
Honest, detailed discussion of what SGB can and cannot achieve — including the fact that it does not erase trauma, that benefit is not guaranteed, and that psychological therapy remains essential.
4
Pathway to psychotherapy
SGB is used to create a window of reduced arousal — a physiological opening during which evidence-based trauma therapies such as CBT and EMDR can be engaged with more effectively and with greater readiness.

The SGB injection does not treat the trauma itself — it quiets the alarm system enough for the real healing to begin. Psychotherapy is the destination; SGB can be the bridge that makes the journey possible.

Dr Murli Krishna — Consultant in Pain Medicine, PainSpa


What changed for Daniel at four weeks

Approximately four weeks following his Stellate Ganglion Block, Daniel reported a meaningful and wide-ranging improvement in his quality of life. For someone who had been living with the physiological weight of unresolved trauma for decades, the changes — though still evolving — were striking.

Key improvements reported at four-week follow-up

  • Intrusive thoughts and mental ‘noise’ reduced in intensity and frequency — they came and went rather than persisting continuously
  • Significantly less overwhelmed by everyday stress and no longer in a constant state of hyperarousal
  • Markedly calmer overall — described as a palpable reduction in the feeling of being constantly on edge
  • Improved confidence in occupational settings, performing more effectively at work
  • Renewed engagement in social situations previously avoided
  • Returned to the gym and was enjoying physical exercise — a meaningful indicator of restored motivation and capacity
  • Significant reduction in alcohol consumption, which had previously been used to manage symptoms
  • Improved eating patterns and appetite
  • Better able to cope with persistent depersonalisation symptoms, even though these had not directly improved

Dr Krishna was particularly encouraged by the breadth of improvement across domains extending well beyond symptom scores — including return to exercise, reduced reliance on alcohol, and improved social confidence. These functional gains are often the most meaningful indicators of progress in PTSD recovery.

It is worth noting that Daniel’s depersonalisation symptoms did not respond to SGB — a finding consistent with the current understanding that dissociative features of PTSD may require targeted psychological intervention beyond what an autonomic intervention alone can address.


The next steps in Daniel’s recovery

The SGB procedure has done its intended job: created a window of reduced physiological arousal during which Daniel is now better placed to engage with structured trauma-focused therapies. Dr Krishna has left the door open for further specialist input and outlined the following pathway.

Recommended ongoing management plan

  • Priority
    Structured trauma-focused psychotherapy — CBT and/or EMDR — now that physiological hyperarousal has been meaningfully reduced. This remains the mainstay of long-term PTSD management.
  • Ongoing
    Continuation of supportive counselling alongside any trauma-focused work, reinforcing psychological resilience during the recovery process.
  • Lifestyle
    Maintaining the positive lifestyle gains achieved: regular physical exercise, reduced alcohol intake, consistent nutrition — all of which support nervous system regulation and psychological wellbeing.
  • Future
    Low Dose Naltrexone (LDN) has been briefly discussed as a potential future adjunct given its emerging role in conditions involving neuroinflammation and autonomic dysregulation. This will be revisited if clinically appropriate.
  • Open
    An open follow-up appointment remains available under Dr Krishna’s care. Daniel can re-engage with specialist input at any point as his recovery progresses.

About Dr Murli Krishna

MK
Dr Murli Krishna
Consultant in Pain Medicine — PainSpa
MBBS • FRCA • FFPMRCA • Fellow of the Faculty of Pain Medicine

Dr Krishna is a highly experienced Consultant in Pain Medicine practising at PainSpa’s clinics in Bristol, including Willow Surgery in Downend and the Chesterfield Nuffield Hospital in Clifton. He specialises in the diagnosis and interventional management of complex chronic pain and autonomic conditions, with a growing practice in Stellate Ganglion Block for PTSD and related disorders.

His philosophy is rooted in a comprehensive, patient-centred assessment: understanding the precise physiological mechanisms driving a patient’s symptoms, applying appropriately targeted interventions, and situating these within a broader management plan that places psychological recovery at its core. He approaches PTSD with the same rigour and compassion that characterises his work across all complex conditions.

Dr Krishna consults in person and via telephone or video, and sees patients on a self-pay basis. Patients interested in exploring Stellate Ganglion Block for PTSD are encouraged to contact PainSpa to arrange an initial assessment consultation.

Please note: This case study is published for educational and informational purposes. All patient-identifying details — including name, age, occupation, and location — have been changed or generalised to protect patient confidentiality. Individual results from SGB treatment vary considerably; the procedure does not guarantee improvement and is not effective for all patients. SGB is not a replacement for evidence-based psychological therapies for PTSD, which remain the primary treatment. The information contained in this case study does not constitute medical advice. Please contact PainSpa to discuss your individual circumstances. For complaints or queries, please write to clinic@painspa.co.uk.