Familial cortical myoclonic tremor as a unique form of cortical reflex myoclonus

Movement Disorders : Official Journal of the Movement Disorder Society
K TeradaH Shibasaki

Abstract

Previously it was reported that some patients with tremor had the same electrophysiological findings as those seen in patients with cortical reflex myoclonus, and consequently the tremor was named "cortical tremor." In the present study, we examined six patients from three families with cortical tremor of relatively late onset. The inheritance pattern of cortical tremor was compatible with autosomal dominant trait. Those patients had relatively rhythmic involuntary movements (tremor) in the distal upper and lower limbs, especially during posture and/or fine movements. There was no cerebellar ataxia or dementia, and fits of loss of consciousness occurred only infrequently. Electrophysiologically, they had generalized spikes on electroencephalogram (EEG), giant cortical components of somatosensory evoked potential, an enhanced long-loop reflex (C-reflex), and cortical spikes preceding the rhythmic jerk demonstrable by the jerk-locked back averaging method, thus fulfilling the criteria of cortical reflex myoclonus. Furthermore, they had slow negative EEG shift starting 1-2 s prior to voluntary movements, suggesting that, as opposed to the conventional form of progressive myoclonus epilepsy (PME), the cerebellar efferent input to t...Continue Reading

References

Jun 1, 1977·Brain : a Journal of Neurology·M HallettC D Marsden
Jan 1, 1991·Journal of Endodontics·E KasaharaA Miyazawa
Oct 1, 1990·Neurology·A IkedaH Shibasaki
Jan 1, 1990·Movement Disorders : Official Journal of the Movement Disorder Society·R J ElbleC Higgins
Jun 1, 1990·Journal of Neuroscience Methods·R J ElbleC Higgins
Mar 1, 1985·Electroencephalography and Clinical Neurophysiology·G BarrettR Neshige
Oct 1, 1987·Brain : a Journal of Neurology·R Kakigi, H Shibasaki
Nov 1, 1987·Journal of Neurology, Neurosurgery, and Psychiatry·G DeuschlE Schenck
Mar 1, 1985·Brain : a Journal of Neurology·H ShibasakiR Fukui
Aug 1, 1980·Electroencephalography and Clinical Neurophysiology·H ShibasakiA M Halliday
Nov 1, 1980·Electroencephalography and Clinical Neurophysiology·H ShibasakiA M Halliday
Aug 1, 1981·Journal of Neurology, Neurosurgery, and Psychiatry·J A ObesoC D Marsden
Nov 1, 1995·Electroencephalography and Clinical Neurophysiology·K TeradaH Shibasaki
Jul 1, 1995·Electroencephalography and Clinical Neurophysiology·A IkedaJ Kimura

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Citations

Mar 26, 1999·Movement Disorders : Official Journal of the Movement Disorder Society·H C WangP Brown
Aug 6, 2000·Movement Disorders : Official Journal of the Movement Disorder Society·V S FungI T Lorentz
May 19, 1998·Annals of Neurology·T MimaH Shibasaki
Sep 5, 2002·Movement Disorders : Official Journal of the Movement Disorder Society·Rodger J Elble
Apr 11, 2001·Movement Disorders : Official Journal of the Movement Disorder Society·Y Okuma, Y Mizuno
Nov 6, 1998·Electroencephalography and Clinical Neurophysiology·C A TassinariH Shibasaki
Jun 24, 1998·Clinical Neurology and Neurosurgery·Y OkumaY Mizuno
Mar 6, 2003·Parkinsonism & Related Disorders·John N Caviness
Mar 4, 2000·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·G Cruccu, G Deuschl
Mar 25, 2004·Lancet Neurology·Isabelle Gourfinkel-AnEric LeGuern
Apr 13, 2006·Paediatric Drugs·Renzo Guerrini
Sep 10, 2013·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Tomoko ToyotaTakenori Uozumi
Dec 17, 2014·Annals of Indian Academy of Neurology·Chandra Mohan SharmaDinesh Khandelwal
Jun 27, 2009·Neurologic Clinics·Rodger J Elble
Mar 6, 2007·Neurophysiologie clinique = Clinical neurophysiology·W RegraguiM Simonetta-Moreau
Mar 5, 2005·Movement Disorders : Official Journal of the Movement Disorder Society·Anne-Fleur van RootselaarMarina A J Tijssen
Nov 11, 2005·Movement Disorders : Official Journal of the Movement Disorder Society·Frédéric BourdainMarie Vidailhet
Jun 1, 2011·Movement Disorders : Official Journal of the Movement Disorder Society·Hiroshi Shibasaki, Philip D Thompson
Apr 21, 2011·Movement Disorders : Official Journal of the Movement Disorder Society·Takefumi HitomiRyosuke Takahashi
Sep 24, 2004·Lancet Neurology·John N Caviness, Peter Brown
Aug 12, 1999·American Journal of Human Genetics·M MikamiA Sano
Jan 21, 2016·Journal of Clinical Movement Disorders·Pichet Termsarasab, Steven J Frucht
Dec 16, 2003·Movement Disorders : Official Journal of the Movement Disorder Society·Laura CanafogliaGiuliano Avanzini
Mar 3, 2005·Acta Neurologica Scandinavica·P StrianoS Striano
Jul 8, 2005·Movement Disorders : Official Journal of the Movement Disorder Society·Akio IkedaHiroshi Shibasaki
May 18, 2020·Brain : a Journal of Neurology·Anna LatorreKailash P Bhatia
Sep 21, 2019·Brain : a Journal of Neurology·Patra YeetongVorasuk Shotelersuk
Nov 25, 1998·Movement Disorders : Official Journal of the Movement Disorder Society·G DeuschlM Brin
Feb 19, 2000·Muscle & Nerve·H Shibasaki
Nov 18, 2004·Muscle & Nerve·Hiroshi Shibasaki, Mark Hallett
Dec 14, 2004·Movement Disorders : Official Journal of the Movement Disorder Society·Yasuyuki OkumaYoshikuni Mizuno
Aug 8, 2021·Parkinsonism & Related Disorders·S van der VeenM A J Tijssen
May 30, 2021·Movement Disorders : Official Journal of the Movement Disorder Society·Maya TojimaAkio Ikeda
Jul 28, 2018·Seizure : the Journal of the British Epilepsy Association·Katsuya KobayashiAkio Ikeda

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