Clinical staging and electroencephalographic evolution of continuous spikes and waves during sleep

Epilepsia
Iván Sánchez FernándezTobias Loddenkemper

Abstract

Currently, in continuous spikes and waves during sleep (CSWS) there is a lack of systematic assessments of the clinically relevant stages and the evolution of the electroencephalographic features. The aim of this study is to describe the evolution over time of clinical and electroencephalographic features in CSWS. We enrolled patients from our video-electroencephalography (EEG) monitoring unit with CSWS and with overnight EEG studies with at least one overnight assessment per year over a minimum period of 3 years. We studied clinical presentation and electroencephalographic features. We calculated the (1) spike-wave percentage (SWP) as the percentage of 1-s bins containing at least one spike-wave complex and (2) spike frequency (SF) as the number of spikes per 100 s. Nine children (six boys) met the inclusion criteria during a 15-year period. Seven (78%) had an abnormal development prior to the epilepsy onset, and in two (22%) seizures were the only presenting symptom. Median age at epilepsy onset was 2 years (range 2 days to 4 years), at neuropsychological regression 5.1 years (4-7.7 years), and at seizure freedom 8.6 years (6.5-11.4 years). Median duration and range of clinically relevant stages were as follows: dormant stage...Continue Reading

References

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Citations

Oct 3, 2012·Journal of Clinical Neurophysiology : Official Publication of the American Electroencephalographic Society·Iván Sánchez Fernández, Tobias Loddenkemper
Mar 19, 2014·ISRN Neurology·Nilika Shah Singhal, Joseph E Sullivan
Jan 8, 2014·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·M E PeltolaS Vanhatalo
Aug 21, 2013·Pediatric Neurology·Iván Sánchez FernándezTobias Loddenkemper
Apr 20, 2014·Seizure : the Journal of the British Epilepsy Association·Mark H LibensonAnna L Pinto
Apr 14, 2016·Pediatric Neurology·Christopher M CarosellaRavindra Arya
Aug 22, 2015·Epilepsia·Iván Sánchez FernándezSolomon L Moshé
Aug 31, 2013·Epilepsy Research and Treatment·Iván Sánchez FernándezTobias Loddenkemper
Nov 7, 2012·Pediatric Neurology·Iván Sánchez FernándezSanjeev V Kothare
May 31, 2016·Epilepsy & Behavior : E&B·Lucia MaltoniAntonia Parmeggiani
May 7, 2013·Seizure : the Journal of the British Epilepsy Association·Sebastian FortiniRoberto Horacio Caraballo
Oct 30, 2016·Journal of Neurosurgery. Pediatrics·Anna JeongMary Bertrand
Jul 6, 2017·Epilepsia·Natia JaparidzeMichael Siniatchkin
Apr 27, 2017·Journal of Clinical Neurophysiology : Official Publication of the American Electroencephalographic Society·Iván Sánchez Fernández, Tobias Loddenkemper
Feb 4, 2016·Journal of Clinical Neurophysiology : Official Publication of the American Electroencephalographic Society·Pierangelo VeggiottiValentina De Giorgis
Aug 3, 2017·The Canadian Journal of Neurological Sciences. Le Journal Canadien Des Sciences Neurologiques·Aleksandra MineykoAdam Kirton
Sep 29, 2020·Frontiers in Neurology·Péter Halász, Anna Szűcs
Dec 4, 2019·Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova·A B Kozhokaru
Nov 24, 2017·Developmental Medicine and Child Neurology·Clemente VegaTobias Loddenkemper
Jan 4, 2017·Journal of Clinical Neurophysiology : Official Publication of the American Electroencephalographic Society·Amanda B WeberAnup D Patel
Sep 23, 2020·Seizure : the Journal of the British Epilepsy Association·Udit U SarafSanjeev V Thomas

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