Is intraoperative electrocorticography reliable in children with intractable neocortical epilepsy?

Epilepsia
Eishi AsanoHarry T Chugani

Abstract

To study the relation between the spike frequency during intraoperative electrocorticography (ECoG) under general anesthesia with isoflurane and that during extraoperative ECoG monitoring in children with intractable neocortical epilepsy. Twenty-one children (age, 1-16 years; 15 boys and six girls) who underwent intraoperative and extraoperative ECoG monitoring with subdural electrode arrays were studied. The spike frequency and the spatial pattern of spike frequency were compared between intraoperative and extraoperative ECoGs for each patient (by using Wilcoxon signed-ranks and Spearman's rank correlation, respectively). In 15 of 21 patients, the spike frequency was significantly lower during intraoperative than during extraoperative ECoG (mean z = -6.3; p < 0.001). In four of 21 patients, no significant difference was found in the spike frequency between intraoperative and extraoperative recordings. In two of 21 patients, spike frequency reached one spike/min neither during intraoperative nor extraoperative recording; therefore appropriate comparison of spike frequency was not possible. A significant positive correlation in the spike-frequency pattern was seen between intraoperative and extraoperative recordings in nine of n...Continue Reading

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Citations

Sep 22, 2010·Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery·Jennifer N GelinasPaul Steinbok
Mar 17, 2009·Brain : a Journal of Neurology·Eishi AsanoHarry T Chugani
Dec 5, 2013·Journal of Clinical Neurophysiology : Official Publication of the American Electroencephalographic Society·Iván Sánchez Fernández, Tobias Loddenkemper
Mar 13, 2009·Journal of Clinical Neurophysiology : Official Publication of the American Electroencephalographic Society·William B Gallentine, Mohamad A Mikati
May 2, 2012·Journal of Neurosurgery. Pediatrics·Carter D WrayJeffrey G Ojemann
Sep 2, 2008·Neurosurgical Focus·Scellig S D Stone, James T Rutka
Oct 10, 2014·Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery·Vera C TerraHelio R Machado
May 21, 2013·Brain & Development·Eishi AsanoCsaba Juhász
May 11, 2011·Pediatric Neurology·Martina VendrameSanjeev V Kothare
Apr 3, 2007·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Eishi AsanoHarry T Chugani
Dec 12, 2012·Acta Neurologica Scandinavica·A Y StepanenkoA B Guekht
Jun 23, 2015·European Journal of Paediatric Neurology : EJPN : Official Journal of the European Paediatric Neurology Society·Lakshmi NagarajanSoumya Ghosh
Mar 22, 2015·Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery·Adrianna Ranger, David Diosy
Apr 8, 2017·Epilepsia·Jesse SkochFrancesco T Mangano
Jun 22, 2016·Clinical EEG and Neuroscience·Martha Itzhel G RamírezDaniel San-Juan
May 18, 2017·Journal of Child Neurology·Aimee F LuatSandeep Sood
Sep 27, 2018·Neurologia Medico-chirurgica·Satoshi MaesawaToshihiko Wakabayashi
Nov 21, 2020·Journal of the Formosan Medical Association = Taiwan Yi Zhi·Syu-Jyun PengChi-Long Chen

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