Minimally Invasive Trigeminal Ablation: Transoral Approach for Targeting V2.

BACKGROUND: Trigeminal neuralgia (TN) is a chronic orofacial pain syndrome, which manifests as severe pain in the distribution of any trigeminal nerve branch. Though traditionally responsive to anticonvulsant therapy, TN can become refractory to medications and require surgical intervention. CASE DESCRIPTION: We present a case of V2 TN that was treated with minimally invasive trigeminal ablation. The patient presented with a 6-year history of type 1 TN and had failed the maximum tolerated doses of carbamazepine and gabapentin. There was no evidence of vascular compression on neuroimaging. After the patient refused stereotactic radiosurgery, she was offered minimally invasive trigeminal ablation. At 5 months postoperatively the patient reported complete alleviation of pain with tolerable sensorineural numbness. CONCLUSIONS: The endoscopic approach allows for precise targeting of V2, which is ideal in patients undergoing targeted neuroablation for pain. This is the first documented case of a transoral endoscopic approach toward ablative V2 TN management.