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Ictal EEG showed abrupt high-amplitude delta slow waves, without evolution on the contralateral hemisphere before the build-up of ictal EEG changes on the lesional hemisphere. The patients became seizure free after hemispherotomy. The ictal contralateral slow waves were not a sign of an ictal hemisphere and may indicate prominent ischemic changes resulting from a steal phenomenon of hemispheric angiomatosis during seizure.<\/jats:p>","DOI":"10.3171\/2014.12.peds14238","type":"journal-article","created":{"date-parts":[[2015,5,8]],"date-time":"2015-05-08T10:05:22Z","timestamp":1431079522000},"page":"212-216","source":"Crossref","is-referenced-by-count":12,"title":["Steal phenomenon in Sturge-Weber syndrome imitating an ictal electroencephalography change in the contralateral hemisphere: report of 2 cases"],"prefix":"10.3171","volume":"16","author":[{"given":"Chusak","family":"Limotai","sequence":"first","affiliation":[{"name":"Divisions of Neurology and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cristina Y.","family":"Go","sequence":"additional","affiliation":[{"name":"Divisions of Neurology and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shiro","family":"Baba","sequence":"additional","affiliation":[{"name":"Divisions of Neurology and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kazuo","family":"Okanari","sequence":"additional","affiliation":[{"name":"Divisions of Neurology and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ayako","family":"Ochi","sequence":"additional","affiliation":[{"name":"Divisions of Neurology and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"James T.","family":"Rutka","sequence":"additional","affiliation":[{"name":"Neurosurgery, The Hospital for Sick Children, Toronto, Ontario, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"O. 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