Macon J B, Poletti C E
J Neurosurg. 1982 Sep;57(3):349-53. doi: 10.3171/jns.1982.57.3.0349.
Intraoperative recordings of conducted bipolar epidural somatosensory evoked potentials (SEP's) generated by unilateral common peroneal nerve stimulation have been obtained in 27 patients. The SEP's were multiphasic, 0.3 to 1.5 microV in amplitude, and recorded in 100% of patients with normal cords or in patients with spinal lesions, at a site caudal to the lesions. Control spinal conduction velocities (CV's), measured in the midthoracic to lower cervical regions, were in the range of 65 to 85 m/sec. Control lumbar and lower thoracic CV's were in the range of 30 to 45 m/sec. The CV values were obtained periodically throughout the course of surgery and were plotted as a function of time. In control patients with extradural lesions and neuroleptic anesthesia, the CV's remained constant (+/- 3%). The consistency, sensitivity, and safety of SEP recordings obtained by this technique make precise monitoring readily available during spinal operations.
对27例患者进行了术中记录，这些记录是通过单侧腓总神经刺激产生的双极硬膜外体感诱发电位（SEP）。SEP为多相，振幅为0.3至1.5微伏，在100%脊髓正常的患者或有脊髓病变的患者中，在病变尾侧的部位记录到。在胸中部至下颈部区域测量的对照脊髓传导速度（CV）在65至85米/秒范围内。对照腰椎和下胸部的CV在30至45米/秒范围内。在整个手术过程中定期获取CV值，并将其绘制成时间的函数。在患有硬膜外病变并接受神经安定麻醉的对照患者中，CV保持恒定（±3%）。通过该技术获得的SEP记录的一致性、敏感性和安全性使得在脊柱手术期间能够随时进行精确监测。
