Atrial fibrillation
HAS-BLED
Estimates 1-year major bleeding risk in anticoagulated AF patients and flags modifiable bleeding risk factors.
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Criteria
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Total score
0
Low bleeding risk
Major bleeding ≈ 1.1 per 100 patient-years
Decision guide
Anticoagulate as indicated by stroke risk.
Ranges: 0 Low bleeding risk1–2 Moderate bleeding risk3–9 High bleeding risk
References