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KMID : 1101420160480030262
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Korean Journal of Clinical Laboratory Science
2016 Volume.48 No. 3 p.262 ~ p.268
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Suggestions for the Effective Intraoperative Neurophysiological Monitoring in Microvascular Decompression Surgery of Hemifacial Spasm
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Lim Sung-Hyuk
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Abstract
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Hemifacial spasm is a disease caused by involuntary facial muscles with repeated unilateral convulsive spasms. It involves contraction of multiple muscles at the same time (synkinesia). The pathogenesis appears to be the pressure on the vessel by the facial nerve. This study included hemifacial spasm patients, who received microvascular decompression surgery. Brainstem auditory evoked potential and the examination time were carefully noted when using brain surgical retractor. The facial nerve electromyography tests for the identification of artifacts and EMG waveform when the facial nerve damage, about the importance of the maintenance of anesthesia in the lateral spread response and in a somatosensory evoked potential propose a new method. Based on the above test, it will be more effective.
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KEYWORD
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Hemifacial spasm, Brainstem auditory evoked potentials, Electromyography, Lateral spread response, Somatosensory evoked potentials
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