Peripheral nerve function in patients with excessive fragmentary myoclonus during sleep

Raccagni, Cecilia; Löscher, Wolfgang N.; Stefani, Ambra; Wanschitz, Julia; Kraemer, Lena; Heidbreder, Anna; Högl, Birgit

doi:10.1016/j.sleep.2016.04.018

Cited by 24 publications

(13 citation statements)

References 7 publications

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“…A very recent work by Raccagni et al (2016) confirmed the wide range of coexistent sleep disorders associated with EFM and the findings support the opinion that EFM is not a specific sleep disorder.…”

Section: Clinical Significancesupporting

confidence: 62%

“…The fact that hypnic myoclonus displays the characteristics of fasciculation potentials has been noted also by Montagna et al (1988). A few studies have reported electrophysiologically confirmed benign fasciculation syndrome in the group of EFM patients (Frauscher et al, 2014;Raccagni et al, 2016).…”

Section: Neurophysiologymentioning

confidence: 75%

“…Very recently a study by Raccagni et al (2016) the incidental finding of EFM in 98 patients has shown contradictory results to Vetrugno's conclusions. Fifty percent of the patients in this study presented electrophysiological abnormalities such as polyneuropathy, root lesions and benign fasciculations.…”

Section: Neurophysiologymentioning

confidence: 84%

“…Occurrence of EFM in wakefulness is not quite clear. In the most recent study Raccagni et al (2016) report that the EFM potentials extend into wakefulness in a group of 98 patients. FM present in relaxed wakefulness was previously observed by Montagna et al (1988) and Frauscher et al (2011).…”

Section: )mentioning

confidence: 98%

“…Fifty percent of the patients in this study presented electrophysiological abnormalities such as polyneuropathy, root lesions and benign fasciculations. Such high prevalence of abnormal neurophysiological findings in patients with EFM points to the possibility that peripheral nerve pathology could be the cause of EFM at least in part of the cases (Raccagni et al, 2016).…”

Section: Neurophysiologymentioning

confidence: 99%

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Excessive Fragmentary Myoclonus: What Do We Know?

Nepožitek

Šonka

2017

Prague Med. Rep.

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Abstract:Excessive fragmentary myoclonus (EFM) is a polysomnographic finding registered by the surface electromyography (EMG) and characterized as a result of the muscle activity consisting of sudden, isolated, arrhythmic, asynchronous and asymmetric brief twitches. The EMG potentials are defined by the exact criteria in The International Classification of the Sleep Disorders, 3 rd edition and they appear with high intensity in all sleep stages. Clinical significance of EFM is unclear. It was observed in combination with other diseases and features such as obstructive and central sleep apnea, narcolepsy, periodic limb movements, insomnia, neurodegenerative disorders and peripheral nerve dysfunction. Relation to such wide range of diseases supports the opinion that EFM is nor a specific sleep disorder nor a specific polysomnographic sign. The option that EFM is a normal variant has also not been ruled out so far.

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Section: Clinical Significancesupporting

confidence: 62%

Section: Neurophysiologymentioning

confidence: 75%

Section: Neurophysiologymentioning

confidence: 84%

Section: )mentioning

confidence: 98%

Section: Neurophysiologymentioning

confidence: 99%

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Excessive Fragmentary Myoclonus: What Do We Know?

Nepožitek

Šonka

2017

Prague Med. Rep.

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Restless legs syndrome and periodic leg movements in patients with movement disorders: Specific considerations

Högl

Stefani

2017

Movement Disorders

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Restless legs syndrome is a frequent neurological disorder with potentially serious and highly distressing treatment complications. The role and potential implications of periodic leg movements during sleep range from being a genetic risk marker for restless legs syndrome to being a cardiovascular risk factor. The diagnosis of restless legs syndrome in patients with daytime movement disorders is challenging and restless legs syndrome needs to be differentiated from other sleep-related movement disorders. This article provides an update on the diagnosis of restless legs syndrome as an independent disorder and the role of periodic leg movements and reviews the association of restless legs syndrome with Parkinson's disease and other movement disorders. © 2017 International Parkinson and Movement Disorder Society.

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Sleep‐related motor and behavioral disorders: Recent advances and new entities

et al. 2018

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Patients with sleep-related motor and behavioral disorders present to a variety of subspecialty clinics (neurology, sleep medicine, respiratory medicine, psychiatry). Diagnosing these disorders can be difficult, and sometimes they have a significant impact on quality of life. Alongside a number of common and well-recognized conditions, several new disease entities have been described in recent years that present with abnormal nocturnal motor phenomena (such as ADCY5-associated disease and anti-IgLON5 disease). Our understanding of the neural basis and prognostic significance of other sleep-related disorders has also grown, particularly rapid eye movement sleep behavior disorder. This review (along with a collection of previously unpublished videos) is intended to aid in the recognition and treatment of these patients. The recent change in terminology from nocturnal frontal lobe epilepsy to sleep-related hypermotor epilepsy is also discussed. © 2018 International Parkinson and Movement Disorder Society.

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Peripheral nerve function in patients with excessive fragmentary myoclonus during sleep

Cited by 24 publications

References 7 publications

Excessive Fragmentary Myoclonus: What Do We Know?

Excessive Fragmentary Myoclonus: What Do We Know?

Restless legs syndrome and periodic leg movements in patients with movement disorders: Specific considerations

Sleep‐related motor and behavioral disorders: Recent advances and new entities

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