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馃 SAH Scales
Modified Fisher & Hunt-Hess
📛 Modified Fisher Scale
Based on amount of blood on CT
No SAH or IVH
0
Minimal/thin SAH, no IVH
1
Minimal/thin SAH, with IVH
2
Thick SAH, no IVH
3
Thick SAH, with IVH
4
馃┖ Hunt & Hess Clinical Grade
Based on neurological exam
Asymptomatic or mild headache
I
Moderate-severe headache, nuchal rigidity, no deficit
II
Drowsy, confused, mild focal deficit
III
Stupor, moderate-severe deficit
IV
Coma, decerebrate posturing
V
Calculate SAH Scores
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Modified Fisher Scale
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Hunt & Hess Grade
📛 Interpretation & Vasospasm Risk
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📚 Evidence & Guidelines
Class I Recommendation
★★★★★
(1980)
Citation:
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.
Guideline:
AHA/ASA SAH Guidelines
📔 View on PubMed
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⚠️ Medical Disclaimer
For SAH severity assessment. Neurosurgery consult required.