ELAPSS Score (aneurysm growth risk) — free guideline decision tool
Estimate the 3- and 5-year growth risk of an unruptured intracranial aneurysm with the ELAPSS score.
Open guideline tool →Guideline-based
Implements the decision logic from published clinical guidelines.
Runs in your browser
No installation. Enter the patient's values and get a guideline recommendation instantly.
Data stays local
Nothing is uploaded. Results are for licensed clinicians only.
Common questions
What does ELAPSS Score (aneurysm growth risk) do?
Set follow-up imaging intervals and weigh intervention, using growth as a surrogate for rupture.
How is the result calculated?
Points from Earlier SAH, Location, Age > 60, Population, Size and Shape (0–40). Higher totals indicate higher 3/5-year growth risk; read exact percentages from the nomogram.
Is this a substitute for clinical judgement?
No. All results are decision-support only, for licensed clinicians. They must be individualized to the whole patient and the latest guideline version.
Run ELAPSS Score (aneurysm growth risk) now
Estimate the 3- and 5-year growth risk of an unruptured intracranial aneurysm with the ELAPSS score.
Open guideline tool →For licensed clinicians. Not a substitute for clinical judgement.