title: An unusual form of the bradycardia-tachycardia syndrome: paroxysmal A-V block and ventricular tachycardia.
abstract: An unusual case of alternating bradycardia-tachycardia, paroxysmal Mobitz II A-V block and ventricular tachycardia is described. The patient presented with a normal resting (control) electrocardiogram and intracardiac conduction times (A-H and H-V intervals). The clinical evaluation, electrophysiology, and importance of defining the cause of serious rhythm disturbances prior to therapy are discussed.
mesh_terms: D001919:Bradycardia / Q000150:complications / Q000175:diagnosis*; D004562:Electrocardiography; D005080:Exercise Test; D005260:Female; D006327:Heart Block / Q000150:complications / Q000175:diagnosis*; D006801:Humans; D008875:Middle Aged; D013577:Syndrome; D013610:Tachycardia / Q000150:complications / Q000175:diagnosis*