"Pseudo-malfunction" of a DDD pacemaker.
D000368:Aged; D002304:Cardiac Pacing, Artificial; D004562:Electrocardiography; D004867:Equipment Design; D005260:Female; D006327:Heart Block / Q000503:physiopathology / Q000628:therapy*; D006801:Humans; D010138:Pacemaker, Artificial / Q000009:adverse effects*