Pseudoarrhythmia caused by temporary transvenous pacemaker.
D001145:Arrhythmias, Cardiac / Q000175:diagnosis / Q000209:etiology*; D002037:Bundle-Branch Block / Q000628:therapy; D003937:Diagnosis, Differential; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008875:Middle Aged; D010138:Pacemaker, Artificial / Q000009:adverse effects* / Q000295:instrumentation