The caudalis DREZ for facial pain

Area of Science:

• Neurosurgery
• Pain Management
• Neurology

Background:

• Severe facial pain syndromes, including trigeminal neuralgia and postherpetic neuralgia, significantly impact quality of life.
• Current treatments often provide insufficient relief or have considerable side effects.

Purpose of the Study:

• To evaluate the efficacy and safety of caudalis dorsal root entry zone (DREZ) operations for severe facial pain.
• To assess long-term pain relief and functional outcomes following DREZ surgery.

Main Methods:

• A retrospective review of 25 patients who underwent caudalis DREZ operations over a 3-year period.
• Intraoperative brainstem recordings were performed before and after DREZ procedures.
• Patient outcomes were assessed at discharge, 1 month, 3 months, and 1 year post-surgery.

Main Results:

• Excellent or good pain relief was achieved in 24/25 patients at discharge, 76% at 1 month, and 68% at 3 months.
• At 1 year, 67% of evaluated patients reported good to excellent pain relief.
• Transient postoperative ataxia occurred in 60% of patients, with most resolving within 1 month. No mortality was observed.

Conclusions:

• Caudalis DREZ operations are a satisfactory treatment for debilitating facial pain syndromes.
• The procedure offers significant and durable pain relief with acceptable morbidity.
• Further research may explore optimizing DREZ techniques to minimize residual ataxia.