Periodic leg movements are part of the B-wave rhythm and the cyclic alternating pattern

Acta Neurologica Scandinavica
D W DrosteM Kaps

Abstract

Periodic leg movements (PLM) in sleep are supposed to constitute a frequent cause of insomnia. There is some controversy whether PLM are the cause of insomnia by provoking microarousals or whether they are simply and epiphenomenon not casually related to the insomnia. We examined four patients with PLM by overnight polysomnography and concomitant transcranial Doppler sonography (TCD) monitoring, 13 patients with suspected normal pressure hydrocephalus by concomitant overnight polysomnography and intracranial pressure recording, and 10 healthy volunteers by concomitant overnight polysomnography and TCD monitoring. EEG arousals occurred more frequently before than after the PLM. PLM were associated with increase in heart rate, breathing amplitude, and cerebral blood flow velocity assessed by TCD. PLM occurred with a mean wavelength of 40.5 s. This mean wavelength corresponded to similar values calculated for intracranial pressure B-waves (43.3 s) in 13 patients with suspected normal-pressure hydrocephalus, TCD B-wave equivalents (42.2 s) in 10 healthy young adults and the frequency of the cyclic alternating pattern in EEg recordings (40 s). Our date suggest that these cyclic variations with a wavelength of about 40 s are part of ...Continue Reading

References

Oct 1, 1992·Journal of Geriatric Psychiatry and Neurology·M E McNamaraB S Fogel
Sep 1, 1992·The Japanese Journal of Psychiatry and Neurology·J HoriguchiT Sukegawa
Mar 1, 1992·Journal of Neurosurgery·D W NewellH J Reulen
Dec 1, 1991·Sleep·S Ancoli-IsraelO Kaplan
Jan 1, 1990·European Neurology·M G TerzanoM C Spaggiari
May 1, 1988·Electroencephalography and Clinical Neurophysiology·M G TerzanoM C Spaggiari
Dec 1, 1989·Neurological Research·D Mautner-HuppertK Einhäupl
Jun 1, 1988·Journal of the American Geriatrics Society·S S MoskoJ F Sassin
Sep 1, 1986·Stroke; a Journal of Cerebral Circulation·C C BishopN L Browse
Aug 1, 1994·Acta Neurologica Scandinavica·D W DrosteM M Brown
Oct 1, 1993·Physiology & Behavior·M G Terzano, L Parrino
Jun 26, 2001·Psychiatry and Clinical Neurosciences·T HoriUNKNOWN Sleep Computing Committee of the Japanese Society of Sleep Research Society

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Citations

Jul 2, 2008·Sleep & Breathing = Schlaf & Atmung·Robert SkomroGeraldo Lorenzi-Filho
Jan 28, 1999·Electroencephalography and Clinical Neurophysiology·L ParrinoM G Terzano
Jan 3, 1997·International Journal of Cardiology·G PettelotP Morand
Jun 6, 2002·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Emilia SforzaVincent Ibanez
Jun 23, 1999·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·A C RosaM G Terzano
Nov 1, 2003·Sleep Medicine·Robert Joseph Thomas
Feb 9, 1999·Journal of Neurosurgery·W K GuerraM J Fritsch
Jun 28, 2007·Movement Disorders : Official Journal of the Movement Disorder Society·Paul Christian BaierJuliane Winkelmann
Aug 6, 2004·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Wayne Hening
Jul 1, 2006·Sleep Medicine Reviews·Liborio ParrinoMario Giovanni Terzano
Mar 28, 2006·Sleep Medicine·Mark W Mahowald
Jun 28, 2005·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Magdolna HornyakDieter Riemann
Jan 18, 2003·Sleep Medicine Reviews·Mario Giovanni Terzano, Liborio Parrino
Apr 16, 1998·Journal of Dental Research·G M MacalusoM G Terzano
Apr 20, 2004·Journal of Computer Assisted Tomography·Sigrid FrieseUwe Klose
Jun 7, 2000·Clinical EEG (electroencephalography)·J R Hughes, J J Fino

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