title: Atrial bigeminy with block associated with bradycardia and paroxysmal atrial fibrillation-an important variant of the tachycardia-bradycardia syndrome.
mesh_terms: D001146:Arrhythmia, Sinus / Q000150:complications* / Q000175:diagnosis; D001281:Atrial Fibrillation / Q000150:complications*; D001919:Bradycardia / Q000150:complications*; D005260:Female; D006801:Humans; D008875:Middle Aged; D013577:Syndrome; D013610:Tachycardia / Q000150:complications*