CHA2DS2-Vasc Score = 0

Atrial fibrillation scoring system for risk stratification and need for anticoagulation.

        Age

Risk of stroke in non-valvular atrial fibrillation at 1 year in non-anticoagulated patients (per the original 2009 study):

Per the 2014 AHA guidelines for Atrial Fibrillation:

Lip GY et al. Refining clinical risk stratification for predicting stroke and thromboembolism in atrial fibrillation using a novel risk factor-based approach: the euro heart survey on atrial fibrillation. Chest. 2010; 137(2):263-72. Text

Okumura K et al. Validation of CHA2DS2-VASc and HAS-BLED scores in Japanese patients with nonvalvular atrial fibrillation: an analysis of the J-RHYTHM Registry. Circ J. 2014; 78(7):1593-9. Text