Two validated scoring systems for predicting embolic risk, CHADS2 and CHA2DS2-VASc,
contribute to optimizing antithrombotic prescription practices in patients who have atrial …

Objective To perform a systematic review and meta-analysis of the predictive abilities of
CHADS 2 and CHA 2 DS 2-VASc in stroke and thromboembolism risk stratification of atrial …

North American and European guidelines on atrial fibrillation (AF) are conflicting regarding
the classification of patients at low/intermediate risk of stroke. We aimed to investigate if the …

Essentials• The widely recommended CHA2DS2‐VASc shows conflicting results in
contemporary validation studies.• We performed a systematic review and meta‐analysis of …

Abstract Aims The CHA2DS2-VASc score is a modification of the CHADS2 score that aims to
improve stroke risk prediction in patients with atrial fibrillation (AF) by adding three risk …

Background: Previous studies report that CHADS2 and CHA2DS2-VASc risk scores have
similar discriminating ability (C statistic∼ 0.6). Recently a clinically based risk score, the …

2666 Stroke October 2017 validation studies showed fair-to-good predictive ability of the
CHADS2 score, with C statistics ranging between 0.56 and 0.82. 18 Despite these validation …

INTRODUCTION AND OBJECTIVES: The risk of stroke in atrial fibrillation is heterogeneous
and depends upon underlying clinical conditions included in current risk stratification …

Background Both the CHADS 2 and CHA 2 DS 2-VASc scores are well-validated in Western
populations for predicting risk of stroke among patients with atrial fibrillation (AF). There is …

Background Accurate risk stratification is considered the first and most important step in the
management of patients with non-valvular atrial fibrillation (NVAF). We compared the …