title: Pacemaker-mediated tachycardia: tracking of atrial fibrillation during DDD pacing.
abstract: A 68-year-old man with sick sinus syndrome was treated by implantation of a DDD pacemaker. He subsequently developed a rapid heart rate and was found to have a pacemaker-mediated tachycardia due to tracking of atrial fibrillation by the pacemaker. The tachycardia was abolished by reprogramming the pacemaker, and the patient remained asymptomatic.
mesh_terms: D000368:Aged; D001281:Atrial Fibrillation / Q000503:physiopathology*; D004562:Electrocardiography; D004868:Equipment Failure; D006801:Humans; D008297:Male; D010138:Pacemaker, Artificial / Q000009:adverse effects*; D012804:Sick Sinus Syndrome / Q000628:therapy; D013610:Tachycardia / Q000209:etiology*