Hunt-Hess Scale
Classifies clinical severity of subarachnoid hemorrhage into five grades.
When to use
Adults with subarachnoid hemorrhage to describe clinical severity and support management decisions.
Pearls and pitfalls
- The grade describes clinical status at presentation and does not replace radiologic classification.
- Higher grades are associated with worse prognosis, but treatment decisions are individualized.
- Sedation, intubation and other conditions can change the classification and should be considered.
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Formula
Choose the grade matching the clinical status, from I to V.
Evidence
Clinical scale proposed to relate initial neurologic status to surgical risk in intracranial aneurysms.
References
- Hunt WE, Hess RM. Surgical risk as related to time of intervention in the repair of intracranial aneurysms. J Neurosurg. 1968;28(1):14-20. doi:10.3171/jns.1968.28.1.0014
Frequently asked questions
What is Hunt-Hess Scale?
Classifies clinical severity of subarachnoid hemorrhage into five grades. Adults with subarachnoid hemorrhage to describe clinical severity and support management decisions.
How is the result calculated?
Choose the grade matching the clinical status, from I to V.
How should the result be interpreted?
Clinical scale proposed to relate initial neurologic status to surgical risk in intracranial aneurysms.
What are the sources?
Hunt WE, Hess RM. Surgical risk as related to time of intervention in the repair of intracranial aneurysms. J Neurosurg. 1968;28(1):14-20.