This article is available at e-publications@RCSI: http://epubs.rcsi.ie/gerstrmedart/1 -Use LicenceThis work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 4.0 License.This article is available at e-publications@RCSI: http://epubs.rcsi.ie/gerstrmedart/1T h e ne w e ngl a nd jou r na l o f m e dicine n engl j med nejm.org

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Among patients with a recent cryptogenic stroke or TIA who were 55 years of age or older, paroxysmal atrial fibrillation was common. Noninvasive ambulatory ECG monitoring for a target of 30 days significantly improved the detection of atrial fibrillation by a factor of more than five and nearly doubled the rate of anticoagulant treatment, as compared with the standard practice of short-duration ECG monitoring. (Funded by the Canadian Stroke Network and others; EMBRACE ClinicalTrials.gov number, NCT00846924.).

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