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Nontraumatic Subarachnoid Hemorrhagea 

Nontraumatic Subarachnoid Hemorrhagea
Chapter:
Nontraumatic Subarachnoid Hemorrhagea
Author(s):

Jennifer E. Fugate

and Eelco F. M. Wijdicks

DOI:
10.1093/med/9780190244927.003.0004
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date: 23 October 2019

Subarachnoid hemorrhage (SAH) is defined as introduction of blood in the subarachnoid space. Trauma is the most common cause of SAH. The most common cause of nontraumatic SAH is aneurysm, typically located around the circle of Willis. Attention should be focused on finding a potential aneurysm, but several other conditions can cause SAH.

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