Acta cardiologica
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Atrial fibrillation (AF) is one of the most comorbid conditions in critically ill patients requiring intensive care unit (ICU). Multiple studies have suggested that there may be an association between new-onset AF and adverse outcome in critically ill patients. However, there are no meta-analyses to assess this association. ⋯ New-onset AF is associated with worse outcome in critically ill patients. Further studies should be done to evaluate for causality and adjust for confounders.