イトウ　ススム   Itou Susumu   伊藤　進    所属   医学部 医学科（東京女子医科大学病院）    職種   助教
論文種別	原著
言語種別	英語
査読の有無	査読なし
表題	Morphometric analysis of spike-wave complexes (SWCs) causing myoclonic seizures in children with idiopathic myoclonic epilepsies - A positive SWC component correlates with myoclonic intensity.
掲載誌名	正式名：Brain & development 略　 称：Brain Dev ISSNコード：18727131/03877604
掲載区分	国外
出版社	ELSEVIER
巻・号・頁	43(7),pp.775-782
著者・共著者	OGUNI Hirokazu†, ITO Susumu, NISHIKAWA Aiko, OTANI Yui, NAGATA Satoru
発行年月	2021/08
概要	AIM:To elucidate the morphological characteristics of spike-wave complexes (SWCs) causing myoclonic seizures (MS) in childhood-onset idiopathic myoclonic epilepsies.SUBJECTS AND METHODS:The subjects were 8 patients, including 4 with epilepsy with myoclonic-atonic seizures (EMAS), 3 with myoclonic epilepsy in infancy (MEI) and 1 with idiopathic unclassifiable myoclonic epilepsy. Morphometric parameters of the SWCs were compared between those with MS [SWC-MS (+)] and those without MS [SWC-MS (-)], and a correlation coefficient analysis was performed between the SWC parameters and the duration of myoclonic electromyogram (EMG) potentials.RESULTS:A total of 155 SWC-MS (+) (range: 7 ∼ 34) and 80 SWC-MS (-) (10 each as a control) were analyzed. Comparison of the parameters of the SWCs between SWC-MS (+) and SWC-MS (-) demonstrated that the depth and the width of the positive-sharp-components (PSC) in the SWC-MS (+) were significantly deeper in amplitude and longer in duration than those in the SWC-MS (-), respectively, in all 8 patients (P < 0.05), whereas the number of the polyphasic-multiple-spike-components (PMSC) and the height of negative-spike-components (NSC) were not significantly different in most of the patients, respectively. The depth and the width of PSC were also significantly correlated with the duration of myoclonic EMG potentials in all patients except one [depth of PSC (n = 7): r = 0.623 ∼ 0.888; width of PSC (n = 8): r = 0.676 ∼ 0.948, P < 0.05].CONCLUSIONS:This study revealed that the depth and width of PSC of the SWC are positively correlated with the MS intensity in childhood-onset idiopathic myoclonic epilepsies and are an important neurophysiological marker to generate MS.
DOI	10.1016/j.braindev.2021.03.003
PMID	33875302