Affects younger folks, often by rupture of a Saccular aneurysm. Smoking, High BP, and previous bleeding problems can all precipitate an SAH.
- Symptoms: "Thunderclap" occipital headache, sometimes preceded by Sentinal headaches: like being hit over the back of the head. Followed by altered consciousness, focal neurology.
- Signs: Kernig's Sign (See above), pupil/ local nerve signs.
- Tests: Urgent CT, Bloody CSF
- Management: Neurosurgery, hydration, Nimodipine