Very Short Paroxysms Account for More than Half of the Cases of Atrial Fibrillation detected after Stroke and TIA: A Systematic Review and Meta-analysis - Luciano Sposato

Among stroke and transient ischemic attack patients without a history of atrial fibrillation, 9·0% (95% confidence interval: 4·9–14·3) experienced episodes of post stroke atrial fibrillation shorter than 30 s. 

An additional 6·5% (95% confidence interval: 3·2–10·9) experienced episodes of post stroke atrial fibrillation longer than 30 s. 

This means that among all patients with post stroke atrial fibrillation, 56·3% (95% confidence interval: 37·7–74·0) had post stroke atrial fibrillation episodes shorter than 30 s during diagnostic evaluation.

I'm Carmen Lahiff-Jenkins, Managing Editor of the International journal of Stroke and I spoke to Dr Sposato. 

http://onlinelibrary.wiley.com/enhanced/doi/10.1111/ijs.12555/

Please take  a look at the World Stroke Academy, the e-learning platform of the World Stroke Organisation. 

http://world-stroke-academy.org/wso/#!*menu=16*browseby=9*sortby=1*label=5924*getpage=1