Russ W, Fraedrich G
Thorac Cardiovasc Surg. 1984 Apr;32(2):124-6. doi: 10.1055/s-2007-1023367.
Somatosensory evoked potentials (SEP) are an objective measure of cerebral function. They depend on the integrity of cortical blood flow. After stimulation of the median nerve, SEP of subcortical and cortical origin can be recorded within a short time during carotid surgery by means of 3 scalp electrodes. Intraoperative SEP recordings are more resistant to anesthetic influence than is the EEG. In a 69-year-old woman, monitoring with SEP gave an early warning of cerebral ischemia during carotid endarterectomy. The cortical SEP disappeared immediately after carotid cross-clamping. The entire loss of the cortical SEP was associated with a new neurologic deficit postoperatively. This technique is simple and convenient to use and appears to be predictive of neurologic outcome.
体感诱发电位（SEP）是脑功能的一种客观测量方法。它们依赖于皮质血流的完整性。在刺激正中神经后，在颈动脉手术期间可通过3个头皮电极在短时间内记录到皮质下和皮质起源的SEP。术中SEP记录比脑电图更不易受麻醉影响。在一名69岁女性中，SEP监测在颈动脉内膜切除术中对脑缺血发出了早期预警。颈动脉交叉钳夹后皮质SEP立即消失。皮质SEP完全消失与术后新的神经功能缺损相关。该技术使用简单方便，似乎可预测神经功能结局。
