Subarachnoid Hemorrhage Etiology [Neurosurgery Wiki]

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====== Subarachnoid Hemorrhage Etiology ======

{{rss>https://pubmed.ncbi.nlm.nih.gov/rss/search/1jKIOHIm0MJ9yjPSfQNtpdd0_C_9zZGJD4hqWT_KBp6WfNHsRj/?limit=15&utm_campaign=pubmed-2&fc=20240202111319}}
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[[Intracranial aneurysm]]s are the cause of [[subarachnoid haemorrhage]] in 85% of cases. 

[[Traumatic Subarachnoid Hemorrhage]].

In some patients, no source of hemorrhage can be detected.

Wang et al. in a A Systematic Review identified eight [[risk factor]]s ([[drug]]s, [[trauma]], neoplastic, vessels lesion, inflammatory lesion, blood disease, aneurysm, [[perimesencephalic hemorrhage]])  
((Wang MD, Fu QH, Song MJ, Ma WB, Zhang JH, Wang ZX. Novel Subgroups in Subarachnoid Hemorrhage and Their Association With Outcomes-A Systematic Review and Meta-Regression. Front Aging Neurosci. 2021 Jan 11;12:573454. doi: 10.3389/fnagi.2020.573454. PMID: 33505300; PMCID: PMC7829354.))