Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
2005-10-11
pubmed:abstractText
Three patients presented with a 25-, 15-, and 5-year history of restless legs syndrome (RLS) and periodic limb movements during sleep (PLMS). For 1, 4, and 5 years, they reported additional involuntary trunk and limbs jerks preceding falling asleep and occasionally during intrasleep wakefulness. Videopolysomnography revealed jerks during relaxed wakefulness arising in axial muscles with a caudal and rostral propagation at a slow conduction velocity, characteristic of propriospinal myoclonus (PSM). Jerk-related EEG-EMG back-averaging did not disclose any preceding cortical potential. During relaxed wakefulness preceding falling asleep and during intrasleep wakefulness, PSM coexisted with motor restlessness and sensory discomfort in the limbs. PSM disappeared when spindles and K-complexes appeared on the EEG. At this time, typical PLMS appeared every 20 to 40 seconds, especially during light sleep stages. PLMS EMG activity was limited to leg, especially tibialis anterior muscles, and did not show propriospinal propagation. In one patient, alternating leg muscle activation was also present. Jerks with a PSM pattern represent another motor phenomenon associated with RLS and different from the more usual PLMS.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0885-3185
pubmed:author
pubmed:copyrightInfo
Copyright (c) 2005 Movement Disorder Society.
pubmed:issnType
Print
pubmed:volume
20
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1323-9
pubmed:meshHeading
pubmed-meshheading:16007657-Adult, pubmed-meshheading:16007657-Aged, pubmed-meshheading:16007657-Aged, 80 and over, pubmed-meshheading:16007657-Diagnosis, Differential, pubmed-meshheading:16007657-Electroencephalography, pubmed-meshheading:16007657-Electromyography, pubmed-meshheading:16007657-Electronystagmography, pubmed-meshheading:16007657-Female, pubmed-meshheading:16007657-Humans, pubmed-meshheading:16007657-Male, pubmed-meshheading:16007657-Middle Aged, pubmed-meshheading:16007657-Muscle, Skeletal, pubmed-meshheading:16007657-Myoclonus, pubmed-meshheading:16007657-Nocturnal Myoclonus Syndrome, pubmed-meshheading:16007657-Polysomnography, pubmed-meshheading:16007657-Restless Legs Syndrome, pubmed-meshheading:16007657-Severity of Illness Index, pubmed-meshheading:16007657-Sleep, pubmed-meshheading:16007657-Sleep Stages, pubmed-meshheading:16007657-Spine, pubmed-meshheading:16007657-Videotape Recording, pubmed-meshheading:16007657-Wakefulness
pubmed:year
2005
pubmed:articleTitle
Propriospinal myoclonus: a motor phenomenon found in restless legs syndrome different from periodic limb movements during sleep.
pubmed:affiliation
Department of Neurological Sciences, University of Bologna, Bologna, Italy. vetrugno@neuro.unibo.it
pubmed:publicationType
Journal Article, Case Reports