Hunt-Hess Subarachnoid Hemorrhage Scale
Select clinical findings to assign a Hunt-Hess grade (I-V) for subarachnoid hemorrhage with associated mortality risk and management guidance.
Use the Hunt-Hess Subarachnoid Hemorrhage Scale
Select Clinical Grade
Choose the single grade that best describes the patient's current presentation.
Select a grade on the left
Results and guidance will appear here.
Clinical Features
Management Considerations
This tool is for educational reference only. Mortality estimates are approximations from published literature and vary with patient factors, institutional protocols, and aneurysm characteristics. Clinical decisions must be made by a qualified clinician.
Summary
The Hunt-Hess scale is a widely used clinical grading system for subarachnoid hemorrhage (SAH) that assigns a severity grade of I through V based on presenting neurological signs and symptoms. Higher grades correlate with greater neurological injury and worse prognosis. This tool helps clinicians quickly assign a grade by selecting observable findings and immediately displays the corresponding mortality estimate and standard management considerations.
How it works
- Review the patient's presenting neurological status.
- Select the single best-fit grade description from the five options listed.
- The tool highlights the matched grade and displays its key features.
- Review the estimated 30-day mortality range and typical management approach.
- Use the result to guide neurosurgical consultation and treatment planning.
Use cases
- Rapid bedside grading of aneurysmal subarachnoid hemorrhage.
- Standardizing SAH severity documentation across care teams.
- Estimating prognosis and communicating risk to families.
- Triaging patients for early neurosurgical intervention.
- Medical education and case-based learning for neurology and emergency medicine.
- Research and quality improvement data collection for SAH outcomes.