Effect of β-blockers on triggering of symptomatic atrial fibrillation by anger or stress

Background Anger and stress can trigger episodes of atrial fibrillation (AF) in patients with a history of AF. Objective The purpose of this study was to determine whether β-blockers can protect against emotionally triggered AF. Methods In this prospective, controlled, electronic diary–based study of emotions preceding AF, patients with a history of paroxysmal or persistent AF (N = 91) recorded their rhythm on event monitors at the time of AF...