<unk>  is defined as recurrent episodes of atrial fibrillation that terminate spontaneously in less than 7 days. Oftentimes it terminates within 24 hours.
Paroxysmal atrial fibrillation
Wandering atrial pacemaker
Lone atrial fibrillation
Ectopic atrial rhythm
Paroxysmal AV block
Ventricular flutter
Multifocal atrial tachycardia
Polymorphic ventricular tachycardia