The Claw Sign : An angiographic Predictor of Recanalization After Mechanical Thrombectomy for Cerebral Large Vessel Occlusion

• Material Type: 博士論文
• Title: The Claw Sign : An angiographic Predictor of Recanalization After Mechanical Thrombectomy for Cerebral Large Vessel Occlusion
• Author/Editor: Yamamoto, Yuki; Yamamoto, Nobuaki; Kanematsu, Yasuhisa; Korai, Masaaki; Shimada, Kenji; Izumi, Yuishin; Takagi, Yasushi
• Author Heading: Yamamoto, Yuki; Yamamoto, Nobuaki; Kanematsu, Yasuhisa; Korai, Masaaki; Shimada, Kenji; Izumi, Yuishin; Takagi, Yasushi
• Publication, Distribution, etc.: Elsevier
• Publication Date: 2019-03-28
• Publication Date (W3CDTF): 2019-03-28
• Alternative Title: かに爪様徴候 : 脳主幹動脈閉塞に対する血栓回収療法後の血管造影上の再開通予測因子; AN ANGIOGRAPHICAL PREDICTOR FOR SUCCESSFUL RECANALIZATION
• Periodical title: Journal of Stroke and Cerebrovascular Diseases
• No. or year of volume/issue: 28 6
• Volume: 28
• Issue: 6
• Pages: 1555-1560
• ISSN (Periodical Title): ISSN : 1052-3057; ISSN : 1532-8511
• Degree grantor/type: 徳島大学
• Date Granted: 2020-03-18
• Dissertation Number: 甲第3367号
• Degree Type: 博士（医学）
• Text Language Code: eng
• Subject Heading: mechanical thrombectomy; angiography; recanalization; large vessel occlusion
• Target Audience: 一般
• Note (General): Background: Mechanical thrombectomy undoubtedly improves functional outcomes for patients with acute ischemic stroke. Although we have observed occlusion sites that protrude proximally into the vessel on angiography, termed the “claw sign,” we have been unable to state its clinical significance. In this study, we aimed to determine whether the presence of a claw sign was related to recanalization success after mechanical thrombectomy. Materials and Methods: We retrospectively included 73 consecutive patients treated for acute cerebral large vessel occlusion by mechanical thrombectomy between January 2014 and December 2017. The angiographic claw sign was defined as a thrombus that protruded proximally by more than half the diameter of the parent artery. Claw sign positivity, clinical and etiological features, and outcomes were compared between groups with and without recanalization. Results: The claw sign was observed in 29 of 73 (40%) patients and was positive significantly more frequently in those with recanalization (50.0%) than in those without recanalization (5.9%) (P < .01). By multivariate analysis, the claw sign was the only pretreatment parameter to predict successful recanalization (odds ratio, 12.50; 95% confidence interval, 1.50-103.00; P = .019). Conclusions: The presence of the claw sign might predict successful recanalization in patients undergoing mechanical thrombectomy for large vessel occlusion.
• Format (IMT): application/pdf
• Access Restrictions: インターネット公開
• Related Material (DOI): 10.1016/j.jstrokecerebrovasdis.2019.03.007
• Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）; https://irdb.nii.ac.jp
• Original Data Provider (Database): 徳島大学 : 徳島大学機関リポジトリ

Table of Contents

http://repo.lib.tokushima-u.ac.jp/files/public/11/114639/20200420145807951591/k3367_abstract_review.pdf fulltext

http://repo.lib.tokushima-u.ac.jp/files/public/11/114639/20200420145808451896/k3367_fulltext.pdf fulltext