Macon J B, Poletti C E
Neuroscience Center of Excellence, Humana Hospital-Audubon, Louisville, KY 40217 U.S.A. Neurosurgical Service, Massachusetts General Hospital, Boston, MA 02114 U.S.A.
Pain. 1987 Dec;31(3):307-316. doi: 10.1016/0304-3959(87)90160-6.
Human trigeminal root evoked potentials have been recorded using signal averaging techniques during radiofrequency trigeminal rhizotomy and lidocaine blocks in patients with trigeminal neuralgia. Both short and long latency trigeminal root potentials have been recorded which appear to represent fast- and slow-conducting fiber activity respectively. Long latency trigeminal root potentials appear in recordings at the noxious threshold as perceived by the awake patient and are relatively selectively abolished in a reversible fashion by lidocaine block and irreversibly by radiofrequency heat. Evaluation of these trigeminal root potentials provides an objective assessment of the results of pain surgery directed at differential destruction of slow-conducting fiber activity.
在三叉神经痛患者进行射频三叉神经根切断术和利多卡因阻滞期间，已使用信号平均技术记录了人类三叉神经根诱发电位。已记录到短潜伏期和长潜伏期的三叉神经根电位，它们似乎分别代表快传导纤维和慢传导纤维的活动。长潜伏期三叉神经根电位出现在清醒患者所感知的伤害性阈值的记录中，并通过利多卡因阻滞以可逆方式相对选择性地消除，通过射频热以不可逆方式消除。对这些三叉神经根电位的评估为针对慢传导纤维活动进行差异性破坏的疼痛手术结果提供了客观评估。
