Unique form of propriospinal myoclonus as a possible complication of an enteropathogenic toxin
Identifieur interne : 000173 ( Istex/Curation ); précédent : 000172; suivant : 000174Unique form of propriospinal myoclonus as a possible complication of an enteropathogenic toxin
Auteurs : Alberto J. Espay [Canada] ; Peter Ashby [Canada] ; Ritsuko Hanajima [Canada] ; Mandar S. Jog [Canada] ; Anthony E. Lang [Canada]Source :
- Movement Disorders [ 0885-3185 ] ; 2003-08.
English descriptors
Abstract
Propriospinal myoclonus is an uncommon form of spinal myoclonus propagated, presumably, by slowly conducting polysynaptic intraspinal pathways. Although most patients demonstrate no clear etiology, a variety of disorders have been linked to this abnormal movement, including trauma, multiple sclerosis, tumors, and infectious disorders such as herpes zoster, human immunodeficiency virus, and Lyme disease. We describe 2 young male patients from the same town in Northern Ontario, Canada, exposed to an outbreak of Escherichia coli O157:H7 from contaminated municipal water, who developed identical clinical and electrophysiological features suggestive of a rhythmic form of propriospinal myoclonus with activity alternating between abdominal and paraspinal muscles. A toxin‐mediated microvascular thrombosis is proposed as a possible pathogenic mechanism underlying this novel association. © 2003 Movement Disorder Society
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DOI: 10.1002/mds.10453
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<front><div type="abstract" xml:lang="en">Propriospinal myoclonus is an uncommon form of spinal myoclonus propagated, presumably, by slowly conducting polysynaptic intraspinal pathways. Although most patients demonstrate no clear etiology, a variety of disorders have been linked to this abnormal movement, including trauma, multiple sclerosis, tumors, and infectious disorders such as herpes zoster, human immunodeficiency virus, and Lyme disease. We describe 2 young male patients from the same town in Northern Ontario, Canada, exposed to an outbreak of Escherichia coli O157:H7 from contaminated municipal water, who developed identical clinical and electrophysiological features suggestive of a rhythmic form of propriospinal myoclonus with activity alternating between abdominal and paraspinal muscles. A toxin‐mediated microvascular thrombosis is proposed as a possible pathogenic mechanism underlying this novel association. © 2003 Movement Disorder Society</div>
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