CHA₂DS₂-VASc + HAS-BLED
Stroke and bleeding risk assessment in atrial fibrillation
CHA₂DS₂-VASc
Stroke risk
Age
Sex
CHF history
Hypertension
Stroke / TIA / thromboembolism
Vascular disease
Diabetes
HAS-BLED
Major bleeding risk
Hypertension
Uncontrolled systolic BP >160 mmHg
Abnormal renal / liver function
1 point each
Stroke history
Bleeding history / predisposition
Labile INR
Age ≥65 years
Drugs / alcohol
1 point each
References
1
Lip GYH, Nieuwlaat R, Pisters R, Lane DA, Crijns HJGM.
Refining clinical risk stratification for predicting stroke and
thromboembolism in atrial fibrillation using a novel risk
factor-based approach: the Euro Heart Survey on atrial fibrillation.
Chest. 2010;137(2):263-272.
doi:10.1378/chest.09-1584.
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CHA₂DS₂-VASc
2
Pisters R, Lane DA, Nieuwlaat R, de Vos CB, Crijns HJGM, Lip GYH.
A novel user-friendly score (HAS-BLED) to assess 1-year risk of
major bleeding in patients with atrial fibrillation:
the Euro Heart Survey.
Chest. 2010;138(5):1093-1100.
doi:10.1378/chest.10-0134.
View study
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HAS-BLED
3
Joglar JA, Chung MK, Armbruster AL, et al.
2023 ACC/AHA/ACCP/HRS guideline for the diagnosis and management
of atrial fibrillation.
Circulation. 2024;149:e1-e156.
doi:10.1161/CIR.0000000000001193.
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Primary Guideline