WS5.2. Intraoperative Monitoring of Motor Evoked Potentials: Physiology and Applications

2021 ◽  
Vol 132 (8) ◽  
pp. e58
Author(s):  
Yew Long Lo
Keyword(s):  
Evoked Potentials ◽  
Intraoperative Monitoring ◽  
Motor Evoked Potentials

Transcranial electrical stimulation through screw electrodes for intraoperative monitoring of motor evoked potentials

2004 ◽  
Vol 100 (1) ◽  
pp. 155-160 ◽  
Author(s):  
Katsushige Watanabe ◽  
Takashi Watanabe ◽  
Akio Takahashi ◽  
Nobuhito Saito ◽  
Masafumi Hirato ◽  
...  
Keyword(s):  
Electrical Stimulation ◽  
Motor Cortex ◽  
Evoked Potentials ◽  
Intraoperative Monitoring ◽  
Primary Motor Cortex ◽  
Motor Evoked Potentials ◽  
Transcranial Electrical Stimulation ◽  
Content Type ◽  
Motor Pathways ◽  
Fine Print

✓ 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 µsec, intensity ≤ 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.

Intraoperative monitoring of motor evoked potentials: A review of 116 cases

Neurology ◽  
1996 ◽  
Vol 47 (4) ◽  
pp. 999-1004 ◽  
Author(s):  
K. J. Nagle ◽  
R. G. Emerson ◽  
D. C. Adams ◽  
E. J. Heyer ◽  
D. P. Roye ◽  
...  
Keyword(s):  
Evoked Potentials ◽  
Intraoperative Monitoring ◽  
Motor Evoked Potentials

INTRAOPERATIVE MONITORING OF TRANSCRANIAL ELECTRICAL MOTOR EVOKED POTENTIALS DURING SCOLIOSIS SURGERY

1999 ◽  
Vol 16 (2) ◽  
pp. 179
Author(s):  
Kyusang S. Lee ◽  
Jeffrey Cohen ◽  
Michael G. Neuwirth ◽  
Paul L. Kuflik ◽  
James G. Tucci ◽  
...  
Keyword(s):  
Evoked Potentials ◽  
Intraoperative Monitoring ◽  
Motor Evoked Potentials ◽  
Scoliosis Surgery

scholarly journals Intraoperative Monitoring With Somatosensory and Motor Evoked Potentials During Carotid Surgery

2019 ◽  
Vol 58 (6) ◽  
pp. e643
Author(s):  
Manuel Miralles ◽  
Jose Luis Perez-Burkhardt ◽  
Susana Soler ◽  
Pedro Perez-Lorensu ◽  
Moisés Falcón ◽  
...  
Keyword(s):  
Evoked Potentials ◽  
Intraoperative Monitoring ◽  
Motor Evoked Potentials ◽  
Carotid Surgery

Intraoperative Monitoring of Motor Function by Magnetic Motor Evoked Potentials

Neurosurgery ◽  
1995 ◽  
Vol 36 (3) ◽  
pp. 493-500 ◽  
Author(s):  
Wei-Yuh Lee ◽  
Wen-Yeong Hou ◽  
Lin-Huse Yang ◽  
Swei-Ming Lin
Keyword(s):  
Evoked Potentials ◽  
Motor Function ◽  
Intraoperative Monitoring ◽  
Motor Evoked Potentials
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