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Cardiology A

ATRIA Stroke Risk Score for Atrial Fibrillation

Predicts stroke/thromboembolism risk in AF patients. Continuous score 0–15. Developed from the ATRIA study (13 000+ AF patients).

Score interpretation

Low Risk 0–3

Low stroke risk. Annual stroke rate <1%.

→ Anticoagulation may not be required. Discuss risk-benefit with patient.

Moderate Risk 4–5

Moderate stroke risk. Annual stroke rate 1–2%.

→ Consider anticoagulation (NOAC preferred). Assess bleeding risk concurrently.

High Risk 6–15

High stroke risk. Annual stroke rate >2%.

→ Anticoagulation strongly recommended (NOAC preferred). Minimise modifiable stroke risk factors.

Interpretation bands for the ATRIA Stroke. Apply clinical judgement and local guidance.

References

Related

Curated clinical cross-links plus same-class fallbacks.

Decision support only — verify against a current formulary, NICE, or your local guideline before clinical use.