CHA₂DS₂-VASc Score Calculator

Calculate stroke risk in patients with atrial fibrillation using the CHA₂DS₂-VASc score.

Congestive Heart Failure (CHF)

Hypertension

Age ≥75 years (2 points)

Diabetes Mellitus

Prior Stroke / TIA (2 points)

Vascular Disease (MI, PAD, aortic plaque)

Age 65–74 years

Female Sex

How to Use the CHA₂DS₂-VASc Calculator

Select 'Yes' for each risk factor present.
Note: Age ≥75 scores 2 points; prior stroke/TIA scores 2 points.
Click 'Calculate' to see the score and stroke risk category.

使用例

•Guiding anticoagulation decisions in AFib patients.
•Estimating annual stroke risk.
•Clinical decision support in cardiology.

計算式

CHA₂DS₂-VASc: CHF(1) + Hypertension(1) + Age≥75(2) + Diabetes(1) + Stroke/TIA(2) + Vascular disease(1) + Age 65–74(1) + Female sex(1). Max = 9.

よくある質問

What is CHA₂DS₂-VASc?

CHA₂DS₂-VASc is a clinical scoring tool used to estimate the annual stroke risk in patients with non-valvular atrial fibrillation (AFib). It guides decisions about anticoagulation therapy.

How is the score interpreted?

Score 0 (males) or 1 (females) = Low risk. Score 1 (males) = Low-moderate, consider anticoagulation. Score ≥2 = High risk, anticoagulation recommended.

Medical disclaimer

This calculator is for educational purposes only. It does not replace professional medical evaluation. Always consult a qualified healthcare provider for clinical decisions.