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Clinical Outcomes of Sphenopalatine Ganglion Pulsed Radiofrequency in Refractory Craniofacial Pain Syndromes: A Prospective Clinical Study

ClinicalTrials.gov · COMPLETED, 2026

55 participants

Abstract

Purpose of the Study: This study aims to evaluate the clinical effectiveness and long-term outcomes of "Sphenopalatine Ganglion (SPG) Pulsed Radiofrequency (PRF)" treatment in patients with chronic headaches and facial pain. The SPG is a major neural junction for craniofacial pain signaling. PRF is a safe, minimally invasive technique that modulates pain transmission without causing thermal damage to the nerve tissue.

Methodology: The study will include 55 volunteer patients at the Ankara Bilkent City Hospital Algology Clinic who are unresponsive to medical treatments. Patients will undergo the standard "fluoroscopy-guided infrazygomatic approach." Pain intensity (VAS), quality of life, patient satisfaction, and changes in analgesic consumption will be recorded at baseline and during follow-up visits at 1 week, 1 month, 3 months, and 6 months post-procedure using various clinical parameters.

Expected Benefits and Risks: The research intends to provide evidence regarding the 6-month long-term impact of this intervention on pain scores and patient well-being. Since the study follows routine clinical practices, it poses no additional risks to participants and aims to optimize future treatment strategies.

Conditions: Migraine Disorders, Facial Pain Disorder, Cluster Headache, Trigeminal Neuralgia, Trigeminal Autonomic Cephalalgias.

Primary outcome: Assessment of Pain Intensity Reduction Using the Visual Analog Scale (VAS) Following Sphenopalatine Ganglion Pulsed Radiofrequency;…

How strong is the evidence?

Evidence Hub reads this as a clinical trial, done in people. Its evidence level is 3 of 5 (Moderate · trial / cohort / secondary analysis). Trials without a large randomized design, cohorts and secondary analyses give moderate evidence. Reported size: 55 participants or records.

How the five levels of evidence work. The level is assigned automatically from the abstract and can be wrong, so check the paper.

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