“…Atrial fibrillation (AF) is a common arrhythmia in TTC patients with a prevalence of 18%–25% (El‐Battrawy, Lang, Ansari, Behnes, et al, ; Stiermaier, Santoro, et al, ). Some studies report that concomitant AF is a predictor of short‐term and long‐term mortality in TTC patients (El‐Battrawy, Lang, Ansari, Behnes, et al, ; Stiermaier, Santoro, et al, ). AF is also commonly known as a poor outcome predictor among patients with ACS (Angeli et al, ; Lin et al, ; Maagh et al, ; Poci, Hartford, Karlsson, Edvardsson, & Caidahl, ; Podolecki et al, ; Stamboul et al, ; Viliani et al, ).…”