Current risk stratification schemes for preventing ischemic stroke in patients with nonvalvular atrial fibrillation: HELT-E2S2 and CHA2DS2-VA scores
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In Japan, the CHADS2 score has long been recommended as a Class I indication for risk stratification in patients with nonvalvular atrial fibrillation. However, the recent Japanese Circulation Society guidelines have proposed the HELT-E2S2 score as a Class IIa ... ...
