{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1390001204673654528.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.2335/scs.38.119"}},{"identifier":{"@type":"NAID","@value":"130004479709"}},{"identifier":{"@type":"URI","@value":"https://search.jamas.or.jp/link/ui/2010210838"}}],"dc:title":[{"@language":"en","@value":"A Case of Sylvian Hematoma Enlarging 3 Days after Neck Clipping for the Ruptured Anterior Communicating Artery Aneurysm, in the Contralateral Sylvian Fissure to the Operative Approach"},{"@language":"ja","@value":"破裂前交通動脈瘤クリッピング術３日後にアプローチと反対側にｓｙｌｖｉａｎ　ｈｅｍａｔｏｍａが増大した１例"}],"dc:language":"ja","description":[{"type":"abstract","notation":[{"@language":"en","@value":"We report a case of sylvian hematoma enlarging 3 days after neck clipping for a ruptured anterior communicating artery aneurysm, in the contralateral sylvian fissure to the operative approach.<br> This 65-year-old man was admitted with sudden loss of consciousness by ambulance. Angiography revealed a saccular aneurysm at the anterior communicating artery complex, measuring 2.3×2.4 mm and pointing inferiorly. The aneurysmal neck was successfully clipped by using the right pterional approach. To minimize predictable vasospasm, the hematoma in the left sylvian stem was removed. Postoperative CT scan showed a considerable decrease in hematoma in the basal cistern, but a slight decrease in the vertical portion of the left sylvian fissure. The patient’s consciousness gradually recovered, but deteriorated again 3 days after the operation. CT scan showed a large high-density area in the sylvian fissure suggesting unexpected enlargement of sylvian hematoma. A left fronto-temporal craniotomy was performed. When the subpial hematoma around the sylvial fissure was removed, a large amount of bloody cerebrospinal fluid (CSF) flowed out. The cavity containing bloody fluid was located in the temporal lobe. Postoperative course was uneventful. He recovered well, but moderate sensory aphasia remained.<br> Sylvian hematoma is rarely associated with ruptured anterior communicating artery aneurysms. Furthermore, there has been no report describing delayed onset sylvian hematoma as far as we are aware. The following mechanism was considered to explain this very rare condition. Removal of subarachnoid hematoma in the left sylvian fissure made a recovery of CSF flow up to the limen insulae, but CSF appeared to be blocked from entering the distal sylvian fissure by the thick subpial sylvian hematoma. Instead of normal CSF flow route, CSF may enter into the weakened subpial space to allow accumulation of bloody CSF in the temporal lobe. Subpial hematoma may act as a one-way valve. <br>"}],"abstractLicenseFlag":"disallow"}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1410853646413499393","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000257960271"}],"foaf:name":[{"@language":"en","@value":"NAKAMURA Homare"},{"@language":"ja","@value":"中村 歩希"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Division of Neurosurgery, St. Marianna University School of Medicine Yokohama City Seibu Hospital"},{"@language":"ja","@value":"聖マリアンナ医科大学横浜市西部病院　脳神経外科"}]},{"@id":"https://cir.nii.ac.jp/crid/1410853646413499396","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000257960272"}],"foaf:name":[{"@language":"en","@value":"ONODERA Hidetaka"},{"@language":"ja","@value":"小野寺 英孝"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Division of Neurosurgery, St. Marianna University School of Medicine Yokohama City Seibu 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Hirofumi"},{"@language":"ja","@value":"中山 博文"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Division of Neurosurgery, St. Marianna University School of Medicine Yokohama City Seibu Hospital"},{"@language":"ja","@value":"聖マリアンナ医科大学横浜市西部病院　脳神経外科"}]},{"@id":"https://cir.nii.ac.jp/crid/1410853646413499394","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000257960275"}],"foaf:name":[{"@language":"en","@value":"SAKAKIBARA Yohtaro"},{"@language":"ja","@value":"榊原 陽太郎"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Division of Neurosurgery, St. Marianna University School of Medicine Yokohama City Seibu 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Yoshio"},{"@language":"ja","@value":"田口 芳雄"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Division of Neurosurgery, St. Marianna University School of Medicine Yokohama City Seibu Hospital"},{"@language":"ja","@value":"聖マリアンナ医科大学横浜市西部病院　脳神経外科"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"09145508"},{"@type":"EISSN","@value":"18804683"}],"prism:publicationName":[{"@language":"en","@value":"Surgery for Cerebral Stroke"},{"@language":"ja","@value":"脳卒中の外科"},{"@language":"en","@value":"Surg. Cereb. Stroke"}],"dc:publisher":[{"@language":"en","@value":"The Japanese Society on Surgery for Cerebral Stroke"},{"@language":"ja","@value":"一般社団法人 日本脳卒中の外科学会"}],"prism:publicationDate":"2010","prism:volume":"38","prism:number":"2","prism:startingPage":"119","prism:endingPage":"123"},"reviewed":"false","url":[{"@id":"https://search.jamas.or.jp/link/ui/2010210838"}],"availableAt":"2010","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=sylvian%20hematoma","dc:title":"sylvian hematoma"},{"@id":"https://cir.nii.ac.jp/all?q=subarachnoid%20hemorrhage","dc:title":"subarachnoid hemorrhage"},{"@id":"https://cir.nii.ac.jp/all?q=anterior%20communicating%20artery%20aneurysm","dc:title":"anterior communicating artery aneurysm"}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1361137044851138176","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Intracerebral hematomas caused by aneurysm rupture. 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