MODIFICATION OF CORTICAL STIMULATION FOR MOTOR EVOKED-POTENTIALS UNDER GENERAL-ANESTHESIA - TECHNICAL DESCRIPTION
MODIFICATION OF CORTICAL STIMULATION FOR MOTOR EVOKED-POTENTIALS UNDER GENERAL-ANESTHESIA - TECHNICAL DESCRIPTION
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DOI：
10.1227/00006123-199302000-00011
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发表时间：
1993-02-01
期刊：
影响因子：
4.8
通讯作者：
FRIEDMAN, WA
中科院分区：
文献类型：
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作者：
TANIGUCHI, M;CEDZICH, C;FRIEDMAN, WA
本初步研究提出了一种可能的修改直接皮层电刺激技术记录运动诱发电位全身麻醉。暴露的初级运动皮层由短串的阳极矩形脉冲以高频率（300-500 Hz）刺激，同时从前臂和手部肌肉记录复合肌肉动作电位。当与通过施加一系列较低频率（50-60 Hz）的脉冲来引起肢体运动的传统方式相比时，可以在低得多的电荷强度下获得肌肉反应。有人建议，这种刺激实现了重复激活的皮质肌神经束。反应可以在整个手术过程中连续记录，似乎对影响运动通路的手术操作有反应。该技术似乎适用于运动通路的术中监测，但在更广泛的临床应用之前需要进一步优化刺激和记录参数。
THIS PILOT STUDY presents a possible modification of direct cortical electrical stimulation technique for the recording of motor evoked potentials under general anesthesia. The exposed primary motor cortex was stimulated by a short train of anodal rectangular pulses at high frequency (300-500 Hz), while the compound muscle action potentials were recorded from the-forearm and hand muscles. When compared with the traditional way of eliciting movement of the extremities by applying a train of pulses at lower frequency (50-60 Hz), muscle responses were obtainable at 'an intensity of much lower charge. It is suggested that this stimulation achieves a repetitive activation of the corticomotoneuronal tract. Responses could be continuously recorded throughout surgery and seemed to respond to surgical manipulation affecting the motor pathways. This technique seems to be applicable for intraoperative monitoring of motor pathways but requires further optimization of stimulation and recording parameters before wider clinical applications are possible.