Erector Spinae Plane Block Versus Transcutaneous Radiofrequency in Postherpetic Neuralgia

Which Is More Effective in the Treatment of Postherpetic Neuralgia: Erector Spinae Plane Block or Transcutaneous Radiofrequency?

This observational study aims to compare the effectiveness of ultrasound-guided erector spinae plane (ESP) block and transcutaneous radiofrequency (RF) treatment in patients with postherpetic neuralgia. Pain intensity and neuropathic pain characteristics will be evaluated using the Visual Analog Scale (VAS) and the Self-Leeds Assessment of Neuropathic Symptoms and Signs (S-LANSS) score.

Postherpetic neuralgia is a challenging neuropathic pain condition that significantly affects quality of life. In routine clinical practice, patients are treated with either ultrasound-guided erector spinae plane block or transcutaneous radiofrequency therapy based on clinician preference and experience.

This observational study includes patients who have already completed one of these treatments as part of standard care in the Algology Clinic. No randomization or modification of treatment plans was performed for research purposes. Patients will be divided into two cohorts according to the treatment they received. Treatment outcomes will be retrospectively evaluated and compared using VAS and S-LANSS scores before treatment, immediately after treatment, and at 1-month follow-up.

Inclusion Criteria:

Diagnosis of postherpetic neuralgia involving cervical, thoracic, or lumbar regions

Age between 18 and 80 years

Persistent pain despite conservative treatment

Baseline VAS score > 5

Exclusion Criteria:

Ophthalmic or extremity postherpetic neuralgia

Allergy to local anesthetics

Pregnancy

Coagulopathy or use of antiplatelet therapy

Cognitive impairment preventing informed consent