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Tuesday 15 June 2021
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What is a Sub-Arachnoid Haemorrhage?

Subarachnoid
Subarachnoid

Subarachnoid haemorrhage (SAH) affects a person suddenly and usually without any prior warning.

 

It is a leakage of blood beneath the arachnoid membrane of the brain (pictured opposite) from a major blood vessel.

 

SAH causes the sufferer to develop sudden and severe headache, which is often accompanied by nausea, vomiting, neck stiffness and sometimes collapse, seizure and loss of consciousness.