Introduction A 42-year-old female has presented to the A&E department with a recent onset severe headache. The doctor assessing her is concerned that she has suffered a subarachnoid...
Subarachnoid haemorrhage (SAH) is the presence of blood in the subarachnoid space, between the pia and arachnoid dural membranes Approximately 5% of all cerebrovascular events in the United Kingdom are the result of a SAH Symptoms and signs include the classical...
Symptoms Sudden onset headache (70-80%):'Worst ever' or 'thunderclap' in natureOccipital location is classicSentinel headache in 40%Nausea and vomiting (77%) Signs Fluctuating / loss of consciousness (53%)Signs of meningism (35%):Neck...
Accounts for 5% of strokes in the UK Incidence of 9 per 100,000 adults per year More common in: Women Older age with a peak around 50 years Aneurysms account for about 85% of spontaneous SAH Related Pages: (5.6)...
Mortality rates currently 35-50% (incidence varies highly in studies) Of those that die: ~15% die prior to reaching hospital 60% die within first 24 hours 19% die within 1 week 6% die within 3 weeks 1% die later than 3 weeks High long term morbidity for survivors: ~...
