title: [ECG changes and angina pectoris due to direct current from a defective cardiac pacemaker].
abstract: The case of a 73-year-old patient whose external cardiac pacemaker produced a constant direct current is reported. The patient had severe angina pectoris, and the ECG showed marked QT prolongation and deformation both of the QRS complex and of the ST-T segments. Both angina and ECG changes disappeared when the defective pacemaker was replaced.
mesh_terms: D000368:Aged; D000787:Angina Pectoris / Q000209:etiology*; D001919:Bradycardia / Q000628:therapy; D004560:Electricity / Q000009:adverse effects*; D004562:Electrocardiography; D006801:Humans; D008297:Male; D010138:Pacemaker, Artificial / Q000009:adverse effects*
vernacular_title: EKG-Veränderungen und Angina pectoris durch Gleichstromabgabe eines defekten Herzschrittmacheraggregates.