CHA2DS2-VASc Score (Atrial Fibrillation)
Calculate the CHA2DS2-VASc stroke risk score for patients with non-valvular atrial fibrillation to guide anticoagulation therapy decisions.
Results
What is it?
For educational and clinical reference only. Not a substitute for professional medical judgment. Always verify with current clinical guidelines and consult qualified healthcare providers. The CHA2DS2-VASc score quantifies annual ischemic stroke risk in patients with non-valvular atrial fibrillation. Points are assigned for: Congestive heart failure (1), Hypertension (1), Age =75 (2), Diabetes (1), Stroke/TIA history (2), Vascular disease (1), Age 65�74 (1), Female sex (1). Maximum score = 9.
How to use
Check each risk factor that applies to the patient. The score and estimated annual stroke risk are computed automatically. Use the result alongside current ESC/AHA guidelines to guide anticoagulation decisions.
Example scenario
A 72-year-old female with hypertension and diabetes: Female (1) + Hypertension (1) + Diabetes (1) = Score 3. Estimated annual stroke risk � 3.2%/year. Guidelines suggest oral anticoagulation is indicated.
Pro tip
Score 0 in males: no therapy needed. Score 1 in males: consider anticoagulation. Score =2 in males or =3 in females: anticoagulation recommended (NOAC preferred over warfarin). Always assess bleeding risk (HAS-BLED) before initiating therapy.