cardiology general-medicine

CHA2DS2-VASc Score (AF Stroke Risk)

Estimates annual stroke risk in non-valvular AF. Guides anticoagulation decision (OAC vs no treatment) per ESC/NICE guidelines.

Used in: Atrial Fibrillation

Score interpretation

Score 0 — Low Risk 0

Score 0: low annual stroke risk (~0 %).

→ No antithrombotic therapy for stroke prevention; reassess at each visit.

Score 1 — Men: Consider Anticoagulation; Women: Low Risk 1

Score 1 (annual stroke risk ~1.3 %). ESC 2020: men — oral anticoagulation should be considered (IIa); women whose only point is female sex — low risk, no anticoagulation.

→ Shared decision on anticoagulation for men; reassess women as risk factors change.

Score 2 — Men: Anticoagulate; Women: Consider 2

Score 2 (annual stroke risk ~2.2 %). ESC 2020: men — oral anticoagulation recommended (I); women — should be considered (IIa).

→ DOAC in preference to warfarin unless contraindicated; assess bleeding risk (HAS-BLED).

Score ≥ 3 — Anticoagulation Recommended 3–9

Score ≥ 3: oral anticoagulation recommended for men and women (ESC 2020, Class I).

→ DOAC in preference to warfarin unless contraindicated; assess bleeding risk (HAS-BLED).

Interpretation bands for the CHA2DS2-VASc. Apply clinical judgement and local guidance.

References

Curated clinical cross-links plus same-class fallbacks.

Calculators

Drugs

Pathways

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

Score interpretation

References

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