====== Subarachnoid hemorrhage complications ======
 

see [[Aneurysmal subarachnoid hemorrhage complications]].

see also [[Traumatic subarachnoid hemorrhage complications]].

[[Subarachnoid hemorrhage]] [[complications]] such as [[hydrocephalus]] and [[vasospasm]] are common after [[angiographically negative subarachnoid hemorrhage]]. Still, most patients had a favorable outcome. Only acute hydrocephalus was associated with unfavorable outcomes. The high rate of SAH-related complications highlights the need for neurosurgical care in these patients
((Achrén A, Raj R, Siironen J, Laakso A, Marjamaa J. Spontaneous angiogram-negative subarachnoid hemorrhage: a retrospective single center cohort study. Acta Neurochir (Wien). 2022 Jan;164(1):129-140. doi: 10.1007/s00701-021-05069-7. Epub 2021 Dec 1. PMID: 34853936; PMCID: PMC8761132.))