Myoclonus

Patel, Amar; Frucht, Steven J.

doi:10.1016/b978-0-12-405195-9.00040-8

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“…Myoclonus can also be recorded peripherally with EMG techniques. As the most common source of myoclonus is the cortex, 9 it makes sense to simultaneously record EEG and EMG activity looking for temporal relations that will support a causal relationship.…”

Section: Methodsmentioning

confidence: 99%

How to Do an Electrophysiological Study of Myoclonus

Vial

Merchant

McGurrin

et al. 2022

Journal of Clinical Neurophysiology

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Summary:Diagnosing and characterizing myoclonus can be challenging. Many authors agree on the need to complement the clinical findings with an electrophysiological study to characterize the movements. Besides helping to rule out other movements that may look like myoclonus, electrophysiology can help localize the source of the movement. This article aims to serve as a practical manual on how to do a myoclonus study. For this purpose, the authors combine their experience with available evidence. The authors provide detailed descriptions of recording poly-electromyography, combining electroencephalography and electromyography, Bereitschaftspotentials, somatosensory evoked potentials, and startle techniques. The authors discuss analysis considerations for these data and provide a simplified algorithm for their interpretation. Finally, the authors discuss some factors that they believe have hindered the broader use of these useful techniques.

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Section: Methodsmentioning

confidence: 99%