title: An esophageal electrode for recording arrhythmias.
mesh_terms: D000368:Aged; D001145:Arrhythmias, Cardiac / Q000175:diagnosis*; D004562:Electrocardiography; D006801:Humans; D008297:Male; D010138:Pacemaker, Artificial; D013610:Tachycardia / Q000175:diagnosis