Tag Archive for: Aggressive Ottawa Protocol

Outcomes After Aggressive Management of Recent-Onset Atrial Fibrillation in the ED

13 Feb
February 13, 2017

Background: Atrial fibrillation (AF) is one of the most common dysrhythmias encountered in the ED. The management of recent-onset AF and atrial flutter (AFl) in the ED continues to be debated. The discussion centers on whether patients with recent-onset AF should be rhythm controlled (e.g. converted back to sinus rhythm) or rate controlled only. This debate was showcased in a point-counterpoint in Annals of Emergency Medicine in 2011 (Stiell 2011, Decker 2011). The rhythm control supporters argue that AF/AFl is abnormal, worsens quality of life, leads to cardiac remodeling and, in may patients, requires medications for rate control and anticoagulation. The rate control group argues that cardioversion runs the risk of causing a thromboembolic event (i.e. CVA, peripheral arterial occlusion). Thus, it should not be performed until the absence of clot in the left atrium is confirmed (by TEE) or appropriate anticoagulation has occurred. It has long been taught that if the patient has been in AF/AFl for < 48 hours, the risk of developing a clot in the left atrium is negligible and cardioversion may be pursued. However, some recent literature has called this classic teaching into question (Nuotio 2014). Prospective studies looking at outcomes of recent-onset AF/AFl patients after aggressive treatment in the ED are needed to further evaluate the risks of aggressive treatment.

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