シマザキ　ハルオ   SHIMAZAKI Haruo   嶋崎　晴雄    所属   埼玉医科大学  保健医療学部 共通教育部門    職種   教授
論文種別	学術雑誌(原著)
言語種別	英語
査読の有無	査読あり
表題	Unique combination of hyperintense vessel sign on initial FLAIR and delayed vasoconstriction on MRA in reversible cerebral vasoconstriction syndrome: A case report
掲載誌名	正式名：CEPHALALGIA ISSNコード：03331024
出版社	SAGE PUBLICATIONS LTD
巻・号・頁	34(13),1093-1096頁
著者・共著者	Tomoaki Kameda,Michito Namekawa,Haruo Shimazaki,Daisuke Minakata,Tohru Matsuura,Imaharu Nakano
発行年月	2014/11
概要	Background Reversible cerebral vasoconstriction syndrome is characterized by thunderclap headache and reversible cerebral vasoconstriction on angiographic findings. It can be difficult to diagnose when initial angiography is normal.Case results A 30-year-old woman was admitted because of sudden-onset thunderclap headache and seizure on postpartum day 7. Brain MRI on fluid-attenuated inversion recovery (FLAIR) showed hyperintense vessel sign (HVS), which usually means slow flow due to severe proximal arterial stenosis. However, magnetic resonance angiography (MRA) indicated that proximal arteries was normal. After nicardipine treatment, her symptoms improved dramatically. Follow-up FLAIR on day 7 showed complete resolution of HVS, while a series of MRAs revealed reversible multifocal segmental vasoconstriction.Conclusions HVS on initial FLAIR is useful for an early diagnosis of reversible cerebral vasoconstriction syndrome. As the delayed vasoconstriction on MRA can be observed, reversible cerebral vasoconstriction syndrome may progress from distal small to proximal larger arteries.
DOI	10.1177/0333102414529197
PMID	24711608