CHA₂DS₂-VASc Score Calculator
CHA₂DS₂-VASc Score Calculator for Cardiology. Use the score to support anticoagulation discussions in patients with atrial fibrillation, balancing estimated stroke risk against bleeding risk and patient preference.
How this calculator works
CHA2DS2-VASc estimates thromboembolic stroke risk in atrial fibrillation using congestive heart failure, hypertension, age, diabetes, stroke/TIA, vascular disease, sex, and age strata.
Inputs used
- Heart failure
- Hypertension
- Age
- Diabetes
- Stroke or TIA history
- Vascular disease
- Sex category
Clinical interpretation
Use the score to support anticoagulation discussions in patients with atrial fibrillation, balancing estimated stroke risk against bleeding risk and patient preference.
Limitations and safety notes
Do not use it as a standalone anticoagulation order. Consider rhythm diagnosis, valvular disease, bleeding risk, contraindications, and current AF guidelines.
References
- Lip GYH, Nieuwlaat R, Pisters R, et al. Refining clinical risk stratification for predicting stroke in atrial fibrillation. Chest. 2010.
- ACC/AHA/HRS guideline for the diagnosis and management of atrial fibrillation.
Editorial review and citation methodology
Reviewed by the Quick Medical Calculator Editorial Team. Last reviewed: June 19, 2026. The review checks calculator inputs, intended population, interpretation, limitations, and source alignment.
- Prefer original validation studies for scoring systems and prediction tools.
- Use current specialty society guidance, transplant allocation policy, public health guidance, or regulator resources when they govern clinical use.
- Include limitations and safety notes when a calculator is population-specific, context-dependent, or unsuitable as a standalone decision tool.