The aim of this study is to compare the efficacy of radiofrequency of the Gasserian ganglion versus peripheral branches of the trigeminal nerve for the treatment of trigeminal neuralgia.

Trigeminal neuralgia (TN) is defined as sudden, severe, short-term, stabbing and recurrent pain in the distribution of one or more branches of the trigeminal nerve. Many invasive treatments are available for patients who respond poorly to medical therapy. Among them, radiofrequency therapy is a viable option with a reliable initial and long-term clinical efficacy.

Inclusion Criteria:

• Diagnosed with Primary Trigeminal Neuralgia meets the criteria of the International Classification of Headache Disorders.
• Suffering from severe trigeminal neuralgia that cannot be alleviated effectively with conservative therapy.
• Agree to participate in the study

Exclusion Criteria:

• Infection at the puncture site.
• Coagulation disorder.
• Abnormal blood test (hepatic or renal function)
• History of receiving invasive treatment (glycerol rhizolysis, radiofrequency thermocoagulation, balloon compression, gamma knife treatment, microvascular decompression)