Teaching NeuroImages: Excessive fragmentary hypnic myoclonus
نویسندگان
چکیده
منابع مشابه
Excessive Fragmentary Myoclonus: What Do We Know?
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, 3rd edition and they appea...
متن کاملExcessive fragmentary myoclonus: time of night and sleep stage distributions.
Excessive fragmentary myoclonus during sleep consists of high amounts of brief twitch-like movements occurring asynchronously and asymmetrically in different body areas and has been reported to occur in association with a number of sleep disorders. It was analyzed using a new technique of quantification, the fragmentary myoclonus index (FMI). The FMI exhibited high rates in all stages of sleep ...
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A 52-year-old man with recently diagnosed HIV infection (CD4 count 105/mL; normal range 700– 1,200/mL) presented with a 5-week history of irregular shaking of his left hand triggered by lifting his arm accompanied by “feeling of stiffness and clumsiness.” On clinical examination, focal myoclonus with positive and negative components affecting the left upper limb with distal predominance was det...
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A 19-year-old man presented with a 3-month history of excessive grinning. Examination revealed unrestrained grinning and mild symmetric parkinsonism. Wilson disease was suspected and confirmed by the presence of Kayser-Fleischer ring (figure), suggestive brain MRI (figure), low ceruloplasmin, and high urinary copper levels. Wilson disease is a disorder of copper metabolism characterized by hepa...
متن کاملTeaching NeuroImages: Gasperini syndrome.
Gasperini syndrome is a rare crossed brainstem syndrome characterized by ipsilateral impairment of the VI, VII, and occasionally VIII cranial nerves and contralateral sensory loss. The syndrome, initially described by Ubaldo Gasperini in 1912, results from a lesion of the caudal pons tegmentum (figure e-1, links.lww.com/WNL/A47). The most frequent cause is the occlusion of the long circumferent...
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ژورنال
عنوان ژورنال: Neurology
سال: 2011
ISSN: 0028-3878,1526-632X
DOI: 10.1212/wnl.0b013e31822cfbf7