Transcranial electrical stimulation through screw electrodes for intraoperative monitoring of motor evoked potentials. Technical note.
Transcranial electrical stimulation through screw electrodes for intraoperative monitoring of motor evoked potentials. Technical note.
复制标题
通过螺钉电极进行经颅电刺激，用于术中监测运动诱发电位。
DOI：
10.3171/jns.2004.100.1.0155
复制
发表时间：
2004
影响因子：
4.1
通讯作者：
Tomio Sasaki
中科院分区：
文献类型：
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作者：
Katsushige Watanabe;Takashi Watanabe;A. Takahashi;N. Saito;M. Hirato;Tomio Sasaki
研究了通过放置在颅骨中的螺旋电极进行高频经颅电刺激（TES）的可行性，用于在脑和脊柱手术期间处于全身麻醉状态的患者的运动通路的术中监测。运动诱发电位（MEP）是由TES与一系列的5个方波脉冲（持续时间400微秒，强度≤ 200 mA，频率500 Hz）通过金属螺旋电极放置在颅骨外表的初级运动皮层的42名患者。从拇短展肌（APB）和胫骨前肌（TA）记录对阳极刺激的肌源性MEP。APB肌肉的平均阈值刺激强度为48 +/- 17 mA，TA肌肉的平均阈值刺激强度为112 +/- 35 mA。电极牢固地固定在该部位，并且在整个手术过程中没有因手术操作而移位。未观察到归因于TES的不良反应。使电流通过螺旋电极比TES的常规方法更有效地刺激运动皮层。该方法安全、廉价，便于术中监测运动通路。
The feasibility of high-frequency transcranial electrical stimulation (TES) through screw electrodes placed in the skull was investigated for use in intraoperative monitoring of the motor pathways in patients who are in a state of general anesthesia during cerebral and spinal operations. Motor evoked potentials (MEPs) were elicited by TES with a train of five square-wave pulses (duration 400 microsec, intensity < or = 200 mA, frequency 500 Hz) delivered through metal screw electrodes placed in the outer table of the skull over the primary motor cortex in 42 patients. Myogenic MEPs to anodal stimulation were recorded from the abductor pollicis brevis (APB) and tibialis anterior (TA) muscles. The mean threshold stimulation intensity was 48 +/- 17 mA for the APB muscles, and 112 +/- 35 mA for the TA muscles. The electrodes were firmly fixed at the site and were not dislodged by surgical manipulation throughout the operation. No adverse reactions attributable to the TES were observed. Passing current through the screw electrodes stimulates the motor cortex more effectively than conventional methods of TES. The method is safe and inexpensive, and it is convenient for intraoperative monitoring of motor pathways.
DOI：
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发表时间：
2007
期刊：
影响因子：
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作者：
Yamamoto T;Kobayashi K;Oshima H;Fukaya C;Katayama Y
通讯作者：
Katayama Y
S·片山：（1988）
DOI：
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