The value of CHADS2 score in predicting new-onset atrial fibrillation in Chinese patients with acute myocardial infarction

摘要

Previous studies have shown that new-onset atrial fibrillation (AF) in the setting of acute myocardial infarction (AMI) was associated with increased in-hospital and long term mortality [1,2]. Therefore, it was crucial to recognize the patients with AMI who were on the increased risk for developing new-onset AF. CHADS2 score (congestive heart failure, hypertension, age > 75 years, diabetes and previous stroke or transient ischemic attack) was a very useful and convenient scoring system, which was widely used for the stroke risk stratification in the patients with non-valvular AF [3]. Recently, CHADS2 score has been found to be associated with an increased risk of AF recurrence following catheter ablation [4] and the first-time appearance of AF in patients with frequent supraventricular extrasystoles [5]. In a recent study published in the International Journal of Cardiology, Ruwald et al. enrolled 297 post-MI patients from the CARISMA study with left ventricular ejection fraction (LVEF) <40%.