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Cha MJ, Kim YD, Nam HS, Kim J, Lee DH, Heo JH

Stroke mechanism in patients with non-valvular atrial fibrillation according to the CHADS2 and CHA2 DS2 -VASc scores.

Eur. J. Neurol.. 2012 Mar;19(3):473-9, PMID: 21972975

The CHADS(2) and CHA(2) DS(2) -VASc scores are useful to stratify embolic risks in patients with non-valvular atrial fibrillation (NVAF) and to identify patients eligible for anticoagulation. Although the risk of stoke increases in patients with higher CHADS(2) or CHA(2) DS(2) -VASc scores, it is uncertain why the stroke rate increases in them. Concomitant potential cardiac sources of embolism (PCSE) may be more frequent in patients with higher CHADS(2) or CHA(2) DS(2) -VASc scores because stroke risks increase when concomitant PCSE is present in Atrial fibrillation (AF). On the other hand, atherothrombosis may be the cause when considering that most components of the CHADS(2) and CHA(2) DS(2) -VASc scores are risk factors for atherosclerosis.

CLINICAL NEUROLOGY