Jacobs L A, Brinkman S D, Morrell R M, Shirley J G, Ganji S
Am Surg. 1983 Jun;49(6):338-44.
Scalp recorded somatosensory evoked cortical responses (SSEP) may be measured under general anesthesia to assess the electrical responsiveness of the brain. Such potentials were measured in 25 patients undergoing carotid endarterectomy without shunt. Electrical unresponsiveness occurred bilaterally in one patient and unilaterally in one patient. The patient with unilateral electrical silence developed a perioperative stroke, the only stroke in this series. Analysis of the SSEPs recorded from these patients suggests that profound ischemia produces electrical silence: that intermediate degrees of ischemia produce prolonged interpeak latencies and decreasing amplitudes in the SSEP. This modality seems to offer promise as an intraoperative monitor during cerebrovascular surgery.
可在全身麻醉下测量头皮记录的体感诱发电位（SSEP），以评估大脑的电反应性。对25例未行分流术的颈动脉内膜切除术患者进行了此类电位测量。1例患者双侧出现电无反应，1例患者单侧出现电无反应。单侧电静息的患者发生了围手术期卒中，是该系列中唯一的卒中。对这些患者记录的SSEP分析表明，深度缺血会导致电静息：中度缺血会导致SSEP的峰间期延长和波幅降低。这种方法似乎有望作为脑血管手术中的术中监测手段。
