术中脊髓运动功能的运动诱发电位监测与麻醉的关系

Interference of anesthesia on intraoperative monitoring of spinal motor function with motor-evoked potentials

运动诱发电位（MEPs）作为一种神经电生理监测方法，已广泛应用于术中脊髓运动功能监测。经颅电刺激肌源性动作诱发电位（M-MEPs）在术中监测中应用最为广泛。不同MEPs监测方法以及麻醉药物均对M-MEPs有不同程度的抑制作用，低温亦对其产生影响，因此术中选择合适的麻醉方案尤为重要，并宜采用多脉冲电刺激技术，以期获得满意的监测结果。本文就MEPs的原理及监测方法、影响M-MEPs的因素、术中脊髓运动功能监测的应用及其局限性等方面作一综述。

As a neurophysiological monitoring technique, motor-evoked potentials （MEPs） has been widely used for intraoperatively monitoring motor function of spinal cord. Myogenic MEPs elicited by transeranial electrical stimulation are commonly used to monitor spinal function. However, myogenic MEPs may be interfered by most anesthetic agents and hypothermia. Muhipulse electric stimulation is the recommended tool for intraoperative monitoring of spinal motor function.