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Idiopathic spinal myoclonus: A clinical and neurophysiological assessment of a movement disorder of uncertain origin by Marcello Esposito; Mark J. Edwards; Kailash P. Bhatia; Peter Brown; Carla Cordivari is a Medicine article available to read on EtoBox.

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## Abstract Spinal Myoclonus (SM) is characterized by brief and sudden movements caused by the activation of muscles belonging to adjacent spinal myotomes. Recent reports have indicated that “typical” clinical and electrophysiological features of SM can be mimicked voluntarily. A useful tool that can distinguish between organic and psychogenic jerks is the detection of a Bereitschaftspotential (BP). In this study, we looked for evidence of a BP in a cohort of patients with idiopathic SM. A clinical and neurophysiological assessment of 20 patients affected by idiopathic SM was performed. A video EEG‐EMG multichannel recording was performed in each patient to detect BP. An expert neurophysiologist (PB) reviewed the BP recordings and divided them into those showing a definite, possible, and no BP. A clinical assessment of the videoed movements was performed by two neurologists expert in movement disorders (KB and MJE) who indicated if the movements were compatible with organic or psychogenic myoclonus. A definite or possible BP was recorded in 15 out of 20 patients. Clinical raters agreed in their clinical opinion on 15 patients (75%). All patients where both raters agreed the movemen

Who reads Idiopathic spinal myoclonus: A clinical and neurophysiological assessment of a movement disorder of uncertain origin?

Author

Marcello Esposito; Mark J. Edwards; Kailash P. Bhatia; Peter Brown; Carla Cordivari

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0885-3185)

Published

2009

Language

EN

Field

Medicine (Health Sciences)