How does the WFNS scale compare to Hunt-Hess?

WFNS uses GCS as its foundation (Grade I: GCS 15, Grade II: 13–14 no deficit, Grade III: 13–14 with deficit, Grade IV: 7–12, Grade V: 3–6), making it more objective and reproducible than Hunt-Hess which relies on clinical description.

Which WFNS grades carry the worst prognosis?

Grades IV and V (GCS ≤12) carry 6-month mortality of 40–80%. Poor-grade SAH requires aggressive management of elevated ICP, vasospasm prevention, and early goals-of-care discussions with families.

WFNS Subarachnoid Hemorrhage Scale

Classify subarachnoid hemorrhage severity using the World Federation of Neurosurgical Societies scale based on GCS and motor deficits.

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Hunt-Hess Grade

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WFNS Subarachnoid Hemorrhage Scale

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Frequently Asked Questions

How does the WFNS scale compare to Hunt-Hess?

Which WFNS grades carry the worst prognosis?