CHA₂DS₂-VASc Score Calculator
Calculate stroke risk in patients with atrial fibrillation to guide anticoagulation decisions according to UK clinical guidelines.
Important Clinical Disclaimer:
The CHA₂DS₂-VASc Calculator is intended for use by qualified healthcare professionals only.
It is for educational and informational purposes and should not replace clinical judgement.
Always interpret results alongside the full clinical picture and follow your local guidelines and protocols.
CHA₂DS₂-VASc Score
Anticoagulation Recommendation
About This Score
CHA₂DS₂-VASc Score
The CHA₂DS₂-VASc score is a risk stratification tool used to estimate the risk of stroke in patients with non-valvular atrial fibrillation (AF). It guides clinicians in determining whether anticoagulation therapy is necessary.
Components:
- C: Congestive heart failure (1 point)
- H: Hypertension (1 point)
- A₂: Age ≥ 75 years (2 points)
- D: Diabetes mellitus (1 point)
- S₂: Prior Stroke/TIA/thromboembolism (2 points)
- V: Vascular disease (1 point)
- A: Age 65-74 years (1 point)
- Sc: Sex category (female) (1 point)
Disclaimer
This calculator is provided for educational and informational purposes only. It is not intended to be a substitute for professional medical advice, diagnosis, or treatment.
- Always seek the advice of a qualified healthcare provider with any questions regarding a medical condition.
- Never disregard professional medical advice or delay seeking it because of information from this tool.
- Clinical decision-making should always incorporate the full clinical context, patient preferences, and local protocols.
- The creators of this tool accept no liability for decisions made based on its output.
If you are a patient: please discuss any results with your healthcare provider. This tool is designed for use by medical professionals and may not be appropriate for self-assessment.