title: Hyperkalemic left bundle branch block and hyporeninemic hypoaldosteronism (hyperkalemic left bundle branch block).
abstract: A 70-year-old woman was admitted to the intensive coronary care unit with suspected myocardial infarction. During the follow-up period, the patient twice developed left bundle branch block, which was shown to be related to high serum potassium levels secondary to hyporeninemic hypoaldosteronism and moderate renal failure.
mesh_terms: D000368:Aged; D000450:Aldosterone / Q000172:deficiency*; D002037:Bundle-Branch Block / Q000175:diagnosis / Q000209:etiology*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D006947:Hyperkalemia / Q000150:complications*; D007676:Kidney Failure, Chronic / Q000150:complications; D009203:Myocardial Infarction / Q000175:diagnosis; D012083:Renin / Q000172:deficiency*
chemical_list: D000450:Aldosterone; D012083:Renin