When Medications Fail: Occipital Nerve Ablation for Chronic Migraine
🧠 Refractory Chronic Migraine: A Specialist Pain Clinic Case Report
Chronic migraine can be profoundly disabling and is often difficult to treat, even with
specialist neurological care. This case illustrates how a structured, stepwise approach using
ultrasound-guided occipital nerve interventions can provide meaningful relief when
conventional treatments have failed.
🧩 Background & Presentation
A young adult female presented with a long-standing history of frequent migraine headaches,
occurring several times per week. The pain typically began in the upper cervical and
occipital region before radiating cranially. Attacks were associated with nausea,
dizziness, and significant functional impairment, markedly affecting quality of life and ability to work.
- Frequent, disabling migraine episodes
- Occipital onset with cranial radiation of pain
- Generally well between attacks
The occipital pattern of pain suggested a potential peripheral nerve contribution to the
migraine phenotype, prompting consideration of targeted interventional treatment.
🧠 Neurology Context
The patient underwent comprehensive neurological assessment, including serial MRI brain imaging.
This demonstrated an incidental finding, which was felt to be unrelated to
the migraine presentation. No progressive neurological pathology was identified, and management
initially focused on medical therapy within neurology.
Migraine was felt to be primary in nature, with no structural cause identified to explain the
severity or persistence of symptoms.
⚠️ Why Chronic Migraine Is Difficult to Treat
There is currently no single treatment that is effective for all patients with chronic migraine.
This is because:
- Migraine is biologically and clinically heterogeneous
- Central and peripheral pain mechanisms may coexist
- Medication side effects often limit escalation
Frequent use of simple analgesics can perpetuate headaches and worsen symptom burden,
creating a self-sustaining cycle of pain and disability.
💊 Previous Treatments
Prior to referral to the pain clinic, the patient had trialled multiple migraine preventative
medications under specialist care. These were either ineffective or poorly tolerated.
- Limited benefit from preventive therapies
- Regular paracetamol and NSAID use with diminishing effect
- Concern regarding medication-overuse headache
Non-pharmacological strategies, including lifestyle modification and a trial of TENS,
were also explored but did not result in sustained improvement.
🩺 Pain Clinic Assessment
Given the refractory nature of symptoms and significant impact on daily functioning, patient was referred to Dr Krishna and multidisciplinary pain management approach was adopted. The clinical picture
suggested a significant occipital component to the migraine, making the patient suitable
for targeted nerve interventions.
Confirm benefit with diagnostic nerve blocks before progressing to longer-term
neuromodulatory treatment.
💉 Interventional Management
The patient initially underwent ultrasound-guided bilateral occipital nerve blocks.
This resulted in a significant reduction in migraine frequency and allowed a reduction
in regular analgesic use.
Given this positive response, she subsequently proceeded to
bilateral occipital nerve pulsed radiofrequency treatment (PRFL),
performed under ultrasound guidance as a day-case procedure.
Pulsed radiofrequency is a non-destructive technique designed to modulate pain signalling.
It can provide longer-lasting relief and may be repeated if benefit diminishes over time.
🌟 Outcome and Follow-Up
- Marked reduction in headache frequency and intensity
- Improved daily function and quality of life
- Reduced reliance on regular analgesic medication
- Gradual return of symptoms over time
The patient experienced excellent benefit for a prolonged period and was deemed
appropriate for repeat PRFL given her previous response.
🏥 Experience at Pain Spa
At Pain Spa, Dr Krishna has extensive experience in managing complex and refractory
headache disorders and in performing advanced ultrasound-guided pain interventions.
• Careful patient selection
• Fully ultrasound-guided techniques
• Clear counselling regarding expectations and limitations
• Integration into a broader pain management plan
🌱 Key Learning Points
✔ Medication-overuse headache must always be considered
✔ Occipital nerve interventions can be highly effective in selected patients
✔ PRFL offers a repeatable, non-destructive treatment option
Confidentiality notice: This case report is fully anonymised and shared for
educational and informational purposes only.