Calculator
CHA₂DS₂-VASc
Stroke / thromboembolism risk in non-valvular atrial fibrillation.
Congestive heart failure / LV dysfunctionSigns/symptoms of HF or objective reduced LVEF
+1HypertensionHistory of hypertension (or on treatment)
+1Diabetes mellitus
+1Stroke / TIA / thromboembolismPrior event
+2Vascular diseasePrior MI, peripheral artery disease, or aortic plaque
+1Score
0 / 9
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Non-valvular AF only. Does not apply to valvular AF (mechanical valve or moderate–severe mitral stenosis), where anticoagulation with warfarin is indicated regardless of score.
For health-professional use. A scoring aid — not a substitute for clinical judgement or current guidelines.