{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,28]],"date-time":"2025-08-28T00:06:18Z","timestamp":1756339578097,"version":"3.44.0"},"reference-count":17,"publisher":"BMJ","issue":"1","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Rep"],"accepted":{"date-parts":[[2024,1,20]]},"published-print":{"date-parts":[[2024,1]]},"abstract":"<jats:p>\n                  <jats:italic>Abiotrophia defectiva<\/jats:italic> is a type of Streptococci and is a rare cause of infectious endocarditis. The progression and outcomes of infectious intracranial aneurysms (IIAs) associated with this species are unknown due to a limited number of reported cases. A woman in her 20s with a sudden headache had a subarachnoid haemorrhage on a head CT scan. Cerebral angiography showed an aneurysm on the right middle cerebral artery. She was diagnosed with infectious endocarditis caused by <jats:italic>A. defectiva<\/jats:italic> and underwent parent artery occlusion. Despite initiating targeted antibiotic therapy, a new IIA developed and ruptured 14 days postadmission. A second parent artery occlusion was performed on the new IIA. Following 6\u2009weeks of continued antibiotic therapy, she underwent mitral valve repair and was discharged with no neurological symptoms. Endocarditis caused by <jats:italic>A. defectiva<\/jats:italic> can lead to the delayed formation of an IIA. Endovascular treatment was effective for repeated ruptured IIAs.<\/jats:p>","DOI":"10.1136\/bcr-2023-258922","type":"journal-article","created":{"date-parts":[[2024,1,30]],"date-time":"2024-01-30T21:55:14Z","timestamp":1706651714000},"page":"e258922","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":2,"title":["Delayed formation and rupture of intracranial aneurysm following <i>Abiotrophia defectiva<\/i> endocarditis"],"prefix":"10.1136","volume":"17","author":[{"ORCID":"https:\/\/orcid.org\/0009-0005-2165-5924","authenticated-orcid":false,"given":"Shinya","family":"Tokunaga","sequence":"first","affiliation":[{"name":"Neurosurgery, Shizuoka General Hospital, Shizuoka, Shizuoka, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7547-2828","authenticated-orcid":false,"given":"Akinori","family":"Miyakoshi","sequence":"additional","affiliation":[{"name":"Neurosurgery, Shizuoka General Hospital, Shizuoka, Shizuoka, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kenta","family":"Ito","sequence":"additional","affiliation":[{"name":"Clinical Laboratory Medicine, Shizuoka General Hospital, Shizuoka, Shizuoka, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tsukasa","family":"Sato","sequence":"additional","affiliation":[{"name":"Neurosurgery, Shizuoka General Hospital, Shizuoka, Shizuoka, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2024,1,30]]},"reference":[{"key":"2025082711260484000_17.1.e258922.1","doi-asserted-by":"publisher","DOI":"10.1136\/neurintsurg-2017-013603"},{"key":"2025082711260484000_17.1.e258922.2","doi-asserted-by":"publisher","DOI":"10.1093\/eurheartj\/16.suppl_B.24"},{"key":"2025082711260484000_17.1.e258922.3","doi-asserted-by":"publisher","DOI":"10.1099\/00207713-45-4-798"},{"key":"2025082711260484000_17.1.e258922.4","doi-asserted-by":"publisher","DOI":"10.1093\/clinids\/9.5.908"},{"key":"2025082711260484000_17.1.e258922.5","doi-asserted-by":"crossref","first-page":"493","DOI":"10.1099\/jmm.0.000260","article-title":"Infective endocarditis due to Abiotrophia defectiva and Granulicatella spp. complicated by infectious intracranial cerebral aneurysms: a report of three cases and review of the literature","volume":"65","author":"Rhodes","year":"2016","journal-title":"J Med Microbiol"},{"key":"2025082711260484000_17.1.e258922.6","doi-asserted-by":"publisher","DOI":"10.1161\/CIRCULATIONAHA.105.165564"},{"key":"2025082711260484000_17.1.e258922.7","unstructured":"Delgado V , Ajmone Marsan N , de S , et al . 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Abiotrophia defectivus infectious endocarditis: think beyond the heart. Lancet 2015;385. doi:10.1016\/S0140-6736(15)60090-3","DOI":"10.1016\/S0140-6736(15)60090-3"},{"key":"2025082711260484000_17.1.e258922.16","doi-asserted-by":"crossref","first-page":"293","DOI":"10.1016\/j.wneu.2020.07.228","article-title":"Evaluating the Safety and Efficacy of Various Endovascular Approaches for Treatment of Infectious Intracranial Aneurysms: A Systematic Review","volume":"144","author":"Desai","year":"2020","journal-title":"World Neurosurg"},{"key":"2025082711260484000_17.1.e258922.17","doi-asserted-by":"crossref","DOI":"10.3171\/CASE21685","article-title":"Simultaneous intracerebral and subarachnoid hemorrhages caused by multiple infectious intracranial aneurysms treated endovascularly and by microsurgical clipping: illustrative case","volume":"3","author":"Akimoto","year":"2022","journal-title":"J Neurosurg Case Lessons"}],"container-title":["BMJ Case Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/syndication.highwire.org\/content\/doi\/10.1136\/bcr-2023-258922","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,8,27]],"date-time":"2025-08-27T18:26:16Z","timestamp":1756319176000},"score":1,"resource":{"primary":{"URL":"https:\/\/casereports.bmj.com\/lookup\/doi\/10.1136\/bcr-2023-258922"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,1]]},"references-count":17,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2024,1,30]]},"published-print":{"date-parts":[[2024,1]]}},"alternative-id":["10.1136\/bcr-2023-258922"],"URL":"https:\/\/doi.org\/10.1136\/bcr-2023-258922","relation":{},"ISSN":["1757-790X"],"issn-type":[{"type":"electronic","value":"1757-790X"}],"subject":[],"published":{"date-parts":[[2024,1]]}}}