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Unexpected Onyx migrations to the cerebral arteries were detected while injecting the embolic material. Three hours after failed attempts to retrieve the Onyx cast endovascularly, it was microsurgically removed from the right middle cerebral artery. To the authors' knowledge, this is the first report of the surgical removal of Onyx from a normal cerebral artery.<\/jats:p>","DOI":"10.3171\/2016.9.jns152677","type":"journal-article","created":{"date-parts":[[2017,3,3]],"date-time":"2017-03-03T09:59:15Z","timestamp":1488535155000},"page":"731-734","source":"Crossref","is-referenced-by-count":6,"title":["Surgical removal of embolic material after its unexpected migration through extracranial-intracranial anastomosis in the treatment of Barrow Type D carotid-cavernous fistula: case report"],"prefix":"10.3171","volume":"128","author":[{"given":"Jae-Sang","family":"Oh","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dong-Sung","family":"Kim","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jai-Joon","family":"Shim","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Seok-Mann","family":"Yoon","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1754","reference":[{"key":"b1-jns152677","series-title":"J Neuroophthalmol","doi-asserted-by":"publisher","first-page":"9","DOI":"10.1097\/WNO.0b013e318199ce83","article-title":"Successful transarterial embolization of a Barrow type D dural carotid-cavernous fistula with ethylene vinyl alcohol copolymer (Onyx)","volume":"29","author":"Gandhi D,","year":"2009","unstructured":"Gandhi D, Ansari SA, Cornblath WT: Successful transarterial embolization of a Barrow type D dural carotid-cavernous fistula with ethylene vinyl alcohol copolymer (Onyx). 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