Download now! The CHA₂DS₂-VASc and CHADS₂ score in "AF Stroke Risk - Atrial Fibrillation Evaluation" are clinical prediction rules for estimating the risk of stroke in patients with non-rheumatic atrial fibrillation (AF), a common and serious heart arrhythmia associated with thromboembolic stroke. Such a score is used to determine whether or not treatment is required with anticoagulant or antiplatelet therapy. This schema could improve the approach to stroke risk stratification in patients with atrial fibrillation (AF) by using "AF Stroke Risk - Atrial Fibrillation Evaluation" app. Disclaimer: all calculations must be re-checked and should not be used alone to guide patient care, nor should they substitute for clinical judgment. Calculations in this "AF Stroke Risk - Atrial Fibrillation Evaluation" app might be different with your local practice. Consult to expert doctor whenever necessary.