How to Calculate C H A D S V A Sc
What is C H A D S V A Sc?
CHADS₂-VASc score predicts stroke risk in atrial fibrillation patients. It guides anticoagulation decisions and risk stratification.
Step-by-Step Guide
- 1Assign points for: CHF, Hypertension, Age ≥75 (2 pts), Diabetes, Stroke/TIA/thromboembolism, Vascular disease, Age 65-74, Sex (female)
- 2Total score 0-9; higher indicates more stroke risk
- 3Score guides anticoagulation recommendations
Worked Examples
Input
Age 72, HTN, CHF, no diabetes, female
Result
CHADS₂-VASc = 4 (moderate-high risk)
Anticoagulation likely recommended
Common Mistakes to Avoid
- ✕Confusing CHADS₂-VASc with CHADS₂ (different scoring)
- ✕Not updating score when risk factors change
Frequently Asked Questions
Why age 75 scores double?
Age 75+ shows dramatically increased stroke risk, warranting stronger anticoagulation recommendations.
What score means no anticoagulation needed?
Score 0 males and score 1 females may not need anticoagulation; all others should be considered.
Ready to calculate? Try the free C H A D S V A Sc Calculator
Try it yourself →