Evaluation of asymptomatic atrial fibrillation
Haynes, James W.
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In hemodynamically stable patients without acute chest pain, the evaluation and treatment of atrial fibrillation should not change based on symptoms alone. (Strength of Recommendation: A, based on multiple cohort studies.) As many as 75 percent of episodes of atrial fibrillation are not recognized by patients, and it is not uncommon for asymptomatic episodes to last more than 48 hours, which increases the risk of thromboembolic complications.
American Family Physician, 86(6) 2012.