CHA₂DS₂-VASc Score
Calculate the CHA₂DS₂-VASc score for stroke risk in non-valvular atrial fibrillation.
Formula
C(1)+H(1)+A₂(2)+D(1)+S₂(2)+V(1)+A(1)+Sc(1); max = 9
- Score ≥2 in men or ≥3 in women: anticoagulation generally recommended (ESC 2020).
- Female sex alone (score=1) does not warrant anticoagulation.
- For clinical use — confirm with ESC/ACC guidelines.
CHA₂DS₂-VASc Example
Inputs
- Congestive Heart Failure: 0
- Hypertension: 1
- Age ≥ 75 years: 0
- Diabetes Mellitus: 1
- Prior Stroke / TIA / Thromboembolism: 0
- Vascular Disease (MI, PAD, aortic plaque): 0
- Age 65–74 years: 0
- Female Sex: 0
HTN(1) + DM(1) = score 2. Annual stroke risk ~2.2%. Anticoagulation recommended.
Frequently asked questions
What does the score mean?
Higher scores = higher stroke risk. Score ≥2 in men, ≥3 in women generally indicates anticoagulation is beneficial.