Hunt & Hess Scale calculator
Result
Grade 1
30-day mortality ~10%
How to use it
- 1
Assess alertness. Grade I: alert, mild headache. Grade II: severe headache, stiff neck. Grade III: confused.
- 2
Deficit. Grade IV: focal deficit + stupor. Grade V: deeply comatose.
- 3
Higher grade = delayed surgery. Grade I–III: aneurysm repair early. Grade IV–V: stabilise first.
When to use it
- SAH management
- Grade determines timing of surgical clipping or endovascular coiling.
- Prognosis counselling
- Grade V carries ~90% mortality — inform families early.
- Combined with Fisher grade
- Fisher (CT blood load) + Hunt-Hess (clinical) = complete risk stratification.
A reference for clinicians and students, not medical advice. A score supports a decision; it does not make one. Check every result against the patient in front of you and your local protocol.
At a glance
- Specialty
- Neurology
- Inputs
- 1
- Type
- Points score
