RCVS2 Score (Reversible Cerebral Vasoconstriction)
Scores RCVS2 (-2 to 10) to tell reversible cerebral vasoconstriction syndrome from other intracranial arteriopathies.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Recurrent or single thunderclap headache
- Yes
- Intracranial carotid artery involved
- No
- Vasoconstrictive trigger
- Yes
- Sex
- Female
- Subarachnoid hemorrhage
- No
Result: RCVS2 9: favors reversible cerebral vasoconstriction syndrome (5 or more: 99% specificity, 90% sensitivity in the derivation cohort).
The tool opens with these values already filled in. Replace them with your own.
What you enter
- Recurrent or single thunderclap headache
- Intracranial carotid artery involved
- Vasoconstrictive trigger
- Sex
- Subarachnoid hemorrhage
How this is calculated
Citation
Rocha EA, Topcuoglu MA, Silva GS, Singhal AB. RCVS2 score and diagnostic approach for reversible cerebral vasoconstriction syndrome. Neurology. 2019;92(7):e639-e647. Points as tabulated in de Sousa IA et al. Headache. 2026;66(5):1162. Read the sources: Rocha 2019 ↗, de Sousa 2026 ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.