Transient Augmentation of Intraoperative Motor Evoked Potentials During Middle Cerebral Artery Aneurysm Surgery.

• Material Type: 博士論文
• ISSN: 1878-8750
• Title: Transient Augmentation of Intraoperative Motor Evoked Potentials During Middle Cerebral Artery Aneurysm Surgery.
• Volume: 130
• Author/Editor: Gurung, Pritam; Motoyama, Yasushi; Takatani, Tsunenori; Takamura, Yoshiaki; Takeshima, Yasuhiro; Matsuda, Ryosuke; Tamura, Kentaro; Yamada, Shuichi; Nishimura, Fumihiko; Nakagawa, Ichiro; Park, Young-Su; Kawaguchi, Masahiko; Ohnishi, Hideyuki; Nakase, Hiroyuki
• Author Heading: Gurung, Pritam; Motoyama, Yasushi; Takatani, Tsunenori; Takamura, Yoshiaki; Takeshima, Yasuhiro; Matsuda, Ryosuke; Tamura, Kentaro; Yamada, Shuichi; Nishimura, Fumihiko; Nakagawa, Ichiro; Park, Young-Su; Kawaguchi, Masahiko; Ohnishi, Hideyuki; Nakase, Hiroyuki
• Publication, Distribution, etc.: Elsevier
• Publication Date: 2019-10; 130
• Publication Date (W3CDTF): 2019-10
• Alternative Title: 中大脳動脈瘤手術における術中MEPの一過性増大に関する検討
• Periodical title: World neurosurgery
• Degree grantor/type: 奈良県立医科大学
• Date Granted: 2019-12-05
• Date Granted (W3CDTF): 2019-12-05
• Dissertation Number: 乙第1445号
• Degree Type: 博士（医学）
• Conferring No. (Dissertation): 乙第1445号
• Text Language Code: eng
• Subject Heading: Augmentation of evoked potential; Middle cerebral artery aneurysm; Motor evoked potential; Temporary clipping
• Target Audience: 一般
• Note (General): type:Thesis; Objective: To study clinical significance of augmentation of intraoperative motor evoked potentials (MEPs) during direct open surgery for middle cerebral artery (MCA) aneurysms. Methods: Between 2009 and 2017, 134 MCA aneurysm surgeries were performed with intraoperative MEP monitoring. The frequency and cause of augmentation with >50% increase of MEP amplitude from baseline were studied. Factors associated with MEP augmentation were investigated. Results: MEP augmentation was demonstrated in 9 patients. All 9 events were observed just after application of the temporary clip to the parent artery. The ratio of the maximum amplitude to baseline was 2.6 ± 1.1 at an mean of 2.4 ± 1.1 minutes after parent artery occlusion. Ten patients who did not show MEP augmentation after parent artery occlusion were compared with the patients showing MEP augmentation. The distance of the temporary clip point from the midline was smaller in patients with MEP augmentation compared with patients without MEP augmentation (P = 0.033). Conclusions: MEP augmentation was thought to be an early ischemic sign preceding a significant decrease in MEPs during MCA aneurysm surgery. Transient augmentation of MEPs was more frequently observed in cases with a temporary clip applied to the more proximal part of the MCA.; 博士（医学）・乙第1445号・令和元年12月5日; © 2019 Elsevier Inc. All rights reserved.; identifier:World neurosurgery Vol.130 p.e127-e132 (2019 Oct); identifier:18788750; identifier:http://ginmu.naramed-u.ac.jp/dspace/handle/10564/3701; identifier:World neurosurgery, 130: e127-e132
• Persistent ID (NDL): info:ndljp/pid/11538419; https://dl.ndl.go.jp/pid/11538419
• Collection: 障害者向け資料
• Collection (Materials For Handicapped People:1): テキストデータ
• Collection (particular): 国立国会図書館デジタルコレクション > デジタル化資料 > 博士論文; https://dl.ndl.go.jp/collections/A00014
• Acquisition Basis: 博士論文（自動収集）
• Date Accepted (W3CDTF): 2020-09-07T06:04:08+09:00
• Format (IMT): application/pdf
• Access Restrictions: 国立国会図書館内限定公開
• Service for the Digitized Contents Transmission Service: 図書館・個人送信対象外
• Availability of remote photoduplication service: 可
• Periodical Title (URI): http://hdl.handle.net/10564/3701
• Data Provider (Database): 国立国会図書館 : 国立国会図書館デジタルコレクション; https://dl.ndl.go.jp

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