{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,11]],"date-time":"2026-09-11T19:06:50Z","timestamp":1789153610188,"version":"build-2803163510"},"reference-count":11,"publisher":"BMJ","issue":"9","license":[{"start":{"date-parts":[[2026,9,11]],"date-time":"2026-09-11T00:00:00Z","timestamp":1789084800000},"content-version":"unspecified","delay-in-days":10,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Rep"],"accepted":{"date-parts":[[2026,8,22]]},"published-print":{"date-parts":[[2026,9]]},"abstract":"<jats:p>\n                    This case report describes a man in his 50\u2009s who developed septic cavernous sinus thrombosis secondary to odontogenic maxillary sinusitis complicated by a non-aneurysmal subarachnoid haemorrhage (SAH). He presented with visual loss, altered consciousness and shock. CT revealed SAH near the left Sylvian fissure; right maxillary sinusitis and thrombosis of the cavernous sinuses, superior ophthalmic veins and internal jugular veins without an aneurysm. Despite intensive treatment, including broad-spectrum antibiotics, anticoagulants, tooth extraction and endoscopic sinus drainage, he developed a haemorrhagic venous infarction and subsequently died from cerebral herniation due to progressive brain swelling.\n                    <jats:italic>Streptococcus dysgalactiae<\/jats:italic>\n                    subsp.\n                    <jats:italic>equisimilis<\/jats:italic>\n                    (Group C Streptococcus) was isolated from both blood cultures and purulent material was aspirated during tooth extraction. This case highlights the pathogenic potential of Group C Streptococcus and the importance of recognising septic cerebral venous thrombosis as a cause of SAH.\n                  <\/jats:p>","DOI":"10.1136\/bcr-2026-271999","type":"journal-article","created":{"date-parts":[[2026,9,11]],"date-time":"2026-09-11T18:15:26Z","timestamp":1789150526000},"page":"e271999","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":0,"title":["Subarachnoid haemorrhage associated with septic cavernous sinus thrombosis secondary to odontogenic maxillary sinusitis"],"prefix":"10.1136","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8801-7450","authenticated-orcid":false,"given":"Yoshiyuki","family":"Nagamine","sequence":"first","affiliation":[{"name":"Department of Emergency and Critical Care Medicine, Teikyo University Hospital, Itabashi, Japan"},{"name":"Department of Cardiovasucular Surgery, Teikyo University Hospital, Itabashi, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takuro","family":"Endo","sequence":"additional","affiliation":[{"name":"Department of Emergency and Critical Care Medicine, Teikyo University Hospital, Itabashi, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Masayuki","family":"Iwashita","sequence":"additional","affiliation":[{"name":"Department of Emergency and Critical Care Medicine, Teikyo University Hospital, Itabashi, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takashi","family":"Suzuki","sequence":"additional","affiliation":[{"name":"Department of Emergency and Critical Care Medicine, Teikyo University Hospital, Itabashi, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2026,9,11]]},"reference":[{"key":"2026091111152064000_19.9.e271999.1","doi-asserted-by":"crossref","first-page":"1021","DOI":"10.1016\/j.survophthal.2021.03.009","article-title":"Septic cavernous sinus thrombosis: A review","volume":"66","author":"Caranfa","year":"2021","journal-title":"Surv Ophthalmol"},{"key":"2026091111152064000_19.9.e271999.2","first-page":"614","article-title":"Subarachnoid hemorrhage as the initial presentation of dural sinus thrombosis","volume":"26","author":"Oppenheim","year":"2005","journal-title":"AJNR Am J Neuroradiol"},{"key":"2026091111152064000_19.9.e271999.3","article-title":"Right Infectious Cavernous Sinus Thrombosis Complicated by Multiple Cerebrovascular Events in the Right Hemisphere","volume":"17","author":"Kubota","year":"2025","journal-title":"Cureus"},{"key":"2026091111152064000_19.9.e271999.4","doi-asserted-by":"publisher","DOI":"10.3174\/ajnr.A1986"},{"key":"2026091111152064000_19.9.e271999.5","doi-asserted-by":"crossref","DOI":"10.1002\/ccr3.4638","article-title":"Invasive infection due to Streptococcus dysgalactiae subspecies equisimilis causing endocarditis and ventriculitis: A case report","volume":"9","author":"Hikone","year":"2021","journal-title":"Clin Case Rep"},{"key":"2026091111152064000_19.9.e271999.6","doi-asserted-by":"publisher","DOI":"10.1161\/STR.0b013e31820a8364"},{"key":"2026091111152064000_19.9.e271999.7","doi-asserted-by":"publisher","DOI":"10.1016\/S1474-4422(07)70029-7"},{"key":"2026091111152064000_19.9.e271999.8","doi-asserted-by":"publisher","DOI":"10.1161\/01.STR.0000254579.16319.35"},{"key":"2026091111152064000_19.9.e271999.9","doi-asserted-by":"publisher","DOI":"10.1016\/j.jstrokecerebrovasdis.2007.10.001"},{"key":"2026091111152064000_19.9.e271999.10","doi-asserted-by":"crossref","first-page":"1","DOI":"10.3171\/2024.1.FOCUS23748","article-title":"Intracranial dural arteriovenous fistulas: association with cerebral venous thrombosis, baseline aggressiveness, and clinical outcomes. A retrospective multicenter study on 263 consecutive patients and literature review","volume":"56","author":"Cohen","year":"2024","journal-title":"Neurosurg Focus"},{"key":"2026091111152064000_19.9.e271999.11","first-page":"766","article-title":"Human infections due to Streptococcus dysgalactiae subspecies equisimilis","volume":"49","author":"Brandt","year":"2009","journal-title":"Emerging Infections"}],"container-title":["BMJ Case Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/syndication.highwire.org\/content\/doi\/10.1136\/bcr-2026-271999","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,9,11]],"date-time":"2026-09-11T18:15:32Z","timestamp":1789150532000},"score":1,"resource":{"primary":{"URL":"https:\/\/casereports.bmj.com\/lookup\/doi\/10.1136\/bcr-2026-271999"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,9]]},"references-count":11,"journal-issue":{"issue":"9","published-online":{"date-parts":[[2026,9,11]]},"published-print":{"date-parts":[[2026,9]]}},"alternative-id":["10.1136\/bcr-2026-271999"],"URL":"https:\/\/doi.org\/10.1136\/bcr-2026-271999","relation":{},"ISSN":["1757-790X"],"issn-type":[{"value":"1757-790X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,9]]}}}