{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,8]],"date-time":"2026-02-08T08:22:29Z","timestamp":1770538949139,"version":"3.49.0"},"reference-count":26,"publisher":"BMJ","issue":"5","funder":[{"name":"Research Institute of Radiological Science, Yonsei University College of Medicine"}],"content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["J NeuroIntervent Surg"],"accepted":{"date-parts":[[2019,9,20]]},"published-print":{"date-parts":[[2020,5]]},"abstract":"<jats:sec><jats:title>Introduction<\/jats:title><jats:p>The relationship between the occlusive clot morphology and the efficacy of mechanical thrombectomy (MT) in basilar artery occlusion (BAO) is not well known. Our aim was to evaluate the clinical significance of the clot meniscus sign in patients with acute BAO.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>89 patients with acute BAO who underwent MT were retrospectively analyzed. The clot meniscus sign was defined as meniscoid\/tram-track like antegrade side-wall contrast opacification of the thrombus. Patients were assigned to two groups based on the presence of the clot meniscus sign. The treatment and clinical outcomes were compared.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The clot meniscus sign was diagnosed in 62.9% (53\/89) of the patients. The meniscus sign (+) group showed a shorter procedure time (55 vs 85\u2009min; p<jats:italic>=<\/jats:italic>0.045), higher rate of successful recanalization (89.3% vs 63.6%, p<jats:italic>=<\/jats:italic>0.004), higher incidence of first pass effect (32.1% vs 6.1%, p<jats:italic>=<\/jats:italic>0.004), and lower number of passes (2 vs 3; p<jats:italic>=<\/jats:italic>0.042) when compared with the meniscus sign (\u2212) group. The procedure time (OR 0.972, 95%\u2009CI 0.962 to 0.992; p=0.003) and clot meniscus sign (OR 7.920, 95%\u2009CI 1.769 to 35.452; p=0.007) were independent predictors of successful recanalization.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The clot meniscus sign is related to high first pass effect and short procedure time and is a reliable predictor of successful recanalization in patients with acute BAO.<\/jats:p><\/jats:sec>","DOI":"10.1136\/neurintsurg-2019-015321","type":"journal-article","created":{"date-parts":[[2019,10,8]],"date-time":"2019-10-08T21:15:33Z","timestamp":1570569333000},"page":"477-482","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":25,"title":["Significance of angiographic clot meniscus sign in mechanical thrombectomy of basilar artery stroke"],"prefix":"10.1136","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3738-8988","authenticated-orcid":false,"given":"Sung Hyun","family":"Baik","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Joon Whi","family":"Kim","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8593-6841","authenticated-orcid":false,"given":"Byung Moon","family":"Kim","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7035-087X","authenticated-orcid":false,"given":"Dong Joon","family":"Kim","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2019,10,8]]},"reference":[{"issue":"Suppl 2","key":"2024111103452990000_12.5.477.1","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1159\/000049137","article-title":"Atherothrombosis: a major health burden","volume":"11\u00a0","author":"Leys","year":"2001","journal-title":"Cerebrovasc Dis"},{"key":"2024111103452990000_12.5.477.2","doi-asserted-by":"publisher","DOI":"10.1136\/neurintsurg-2015-012089"},{"key":"2024111103452990000_12.5.477.3","first-page":"1789","article-title":"Angiographic assessment of pial collaterals as a prognostic indicator following intra-arterial thrombolysis for acute ischemic stroke","volume":"26","author":"Christoforidis","year":"2005","journal-title":"AJNR Am J Neuroradiol"},{"key":"2024111103452990000_12.5.477.4","doi-asserted-by":"publisher","DOI":"10.1161\/01.STR.30.10.2094"},{"key":"2024111103452990000_12.5.477.5","doi-asserted-by":"publisher","DOI":"10.1148\/radiology.218.3.r01mr40733"},{"key":"2024111103452990000_12.5.477.6","doi-asserted-by":"crossref","first-page":"730","DOI":"10.1148\/radiol.2019181924","article-title":"Mechanical thrombectomy in subtypes of basilar artery occlusion: relationship to recanalization rate and clinical outcome","volume":"291","author":"Baik","year":"2019","journal-title":"Radiology"},{"key":"2024111103452990000_12.5.477.7","first-page":"1528","article-title":"Arteriographic demonstration of slow antegrade opacification distal to a cerebrovascular thromboembolic occlusion site as a favorable indicator for intra-arterial thrombolysis","volume":"27","author":"Christoforidis","year":"2006","journal-title":"AJNR Am J Neuroradiol"},{"key":"2024111103452990000_12.5.477.8","doi-asserted-by":"publisher","DOI":"10.1161\/STROKEAHA.117.018987"},{"key":"2024111103452990000_12.5.477.9","doi-asserted-by":"crossref","first-page":"1555","DOI":"10.1016\/j.jstrokecerebrovasdis.2019.03.007","article-title":"The claw sign: an angiographic predictor of recanalization after mechanical thrombectomy for cerebral large vessel occlusion","volume":"28","author":"Yamamoto","year":"2019","journal-title":"J Stroke Cerebrovasc Dis"},{"key":"2024111103452990000_12.5.477.10","doi-asserted-by":"publisher","DOI":"10.3988\/jcn.2005.1.1.14"},{"key":"2024111103452990000_12.5.477.11","doi-asserted-by":"publisher","DOI":"10.1161\/STROKEAHA.116.014073"},{"key":"2024111103452990000_12.5.477.12","doi-asserted-by":"publisher","DOI":"10.1161\/01.STR.0000082721.62796.09"},{"key":"2024111103452990000_12.5.477.13","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(98)08020-9"},{"key":"2024111103452990000_12.5.477.14","doi-asserted-by":"publisher","DOI":"10.1111\/j.1552-6569.2007.00209.x"},{"key":"2024111103452990000_12.5.477.15","doi-asserted-by":"crossref","unstructured":"Consoli A , Zhu F , Bourcier R , et al . 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