Atrial synchronous ventricular inhibited (VDD) pacemaker-mediated arrhythmia due to atrial undersensing and atrial lead oversensing of far-field ventricular afterpotentials or paced beats: crosstalk.
A patient is described with an epicardial atrial or P wave synchronous ventricular inhibited VDD pacemaker which had atrial sensing malfunction manifesting as failure of atrial sensing, and atrial sensing of far-field ventricular polarization voltage afterpotentials or ventricular electrograms which mediated pacemaker allorhythms and tachycardias associated with dislocation of the atrial electrode near the right ventricle.
D000328:Adult; D001145:Arrhythmias, Cardiac / Q000209:etiology* / Q000503:physiopathology; D002304:Cardiac Pacing, Artificial / Q000009:adverse effects* / Q000379:methods; D004562:Electrocardiography; D004868:Equipment Failure; D005260:Female; D006327:Heart Block / Q000503:physiopathology / Q000628:therapy; D006801:Humans; D013902:Radiography, Thoracic; D013686:Telemetry