This paper, looking at whether silent and symptomatic AFib are associated with higher rates of AFib recurrence after hospitalization for acute myocardial infarction (AMI), included 1,621 consecutive patients admitted with acute MI (1,282 remained after screening out those with previous AFib and those lost to follow-up). Silent AFib was defined as asymptomatic episodes lasting at least 30 seconds, with patients being classified as either no-AFib, silent AFib and symptomatic AFib. During AMI, 83% of patients had persistent sinus rhythm, 13% had silent AFib, and 4% had symptomatic AFib. Following Cox multivariate analysis, AFib during AMI, indexed left atrial volume, age, and creatinine at discharge were identified as independent risk factors of AFib following AMI.
Quenancia C, Toucas C, Fauchier L, et al. EP Europace. 2018;doi:10.1093/europace/euy168