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Emergency department (ED) treatment for atrial flutter, as for atrial fibrillation, varies by provider. In a retrospective review of 122 consecutive patients who presented to two EDs in Canada with primary diagnoses of atrial flutter, researchers assessed outcomes for patients managed by different strategies: electrical cardioversion (46 patients), chemical cardioversion (15), spontaneous cardioversion (15), rate control (24), and no ED antiarrhythmic treatment (22). Demographic and clinical characteristics were similar in the three cardioversion groups, whereas the rate-control and no ED-treatment groups tended to be older and less likely to have a clearly established time of onset, and the no ED-treatment group was more likely to have car…