title: [Changes in the ECG caused by electrolyte changes in primary hyperparathyroidism].
abstract: The development of cardiac arrhythmias in a case of primary hyperparathyreoidism is described. The arrythmias (sino-auricular block and ventricular ectopic beats) were observed preoperatively in the presence of a raised serum calcium. Postoperatively with a fall of serum calcium to subnormal values the arrhythmias ceased while serum magnesium was very low. The electrophysiological basis of these findings is discussed and the importance of serum calcium- and magnesium estimation in cases of unexplained arrhythmias is stressed.
mesh_terms: D001145:Arrhythmias, Cardiac / Q000209:etiology*; D002118:Calcium / Q000378:metabolism*; D004562:Electrocardiography; D006801:Humans; D006961:Hyperparathyroidism / Q000378:metabolism*; D008274:Magnesium / Q000378:metabolism; D008297:Male; D008875:Middle Aged; D014882:Water-Electrolyte Balance
chemical_list: D008274:Magnesium; D002118:Calcium
vernacular_title: Ekg-Veränderungen durch Elektrolytverschiebung bei primärem Hyperparathyreoidismus