A CHADS2 score of zero is not necessarily associated to a low risk of thromboembolic events

摘要

I have read with interest the paper by Decker and colleagues “CHADS2 score is predictive of left atrial thrombus on precardioversion transesophageal echocardiography in atrial fibrillation [1], recently published on American Journal of Cardiovascular Disease. It assesses the role of CHADS2 score for precluding the need of performing transesophageal echocardiogram before non-valvular atrial fibrillation cardioversion. The authors suggest that pre-cardioversion transesophageal echocardiogram may be unnecessary before performing cardioversion of these patients.