Deep Brain Stimulation for Refractory Trigeminal Neuralgia with a Pontine Lesion

This study tests deep brain stimulation (DBS) — a surgery that implants a device that sends electrical signals to specific brain areas — for people with severe, treatment-resistant trigeminal neuralgia caused by a lesion in the brainstem. Trigeminal neuralgia causes extreme facial pain that is often described as one of the most painful conditions known. **You may be eligible if...** - You have been diagnosed with trigeminal neuralgia (severe, shock-like facial pain) - Your pain is caused by a lesion in the pons (part of the brainstem) - You have tried medications and other treatments without adequate relief - You are an adult in generally good health for surgery **You may NOT be eligible if...** - Your pain has not been clearly linked to a brainstem lesion - You have conditions that make brain surgery unsafe - You have a cardiac pacemaker or other implanted device that could interfere with DBS - You have active psychiatric conditions that could complicate surgery or recovery Talk to your doctor to see if this trial is right for you.